SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)

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Unofficial bot sharing alerts from SPC Tornado/Severe Thunderstorm Watches. This account is not monitored. Contact @wandrme.paxex.aero if needed.

Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0226 AM CDT Thu Jul 23 2026 Valid 261200Z - 311200Z ...DISCUSSION... ...Days 4-5/Sun-Mon -- Upper Midwest toward the Ohio Valley... Enhanced northwesterly flow aloft will overspread the Upper Midwest to the Ohio Valley on Sunday and Monday as several shortwave impulses migrate through the area on the eastern periphery of a strong upper ridge over the Plains. A seasonally very moist airmass will reside across much of these areas, supporting strong destabilization each day. On Sunday, a corridor of severe thunderstorm potential appears possible across parts of MN/WI toward northern IA/IL as a weak shortwave impulse initially over the Dakotas spreads east. While details regarding storm coverage remain uncertain, sufficient deep layer shear and strong instability will be in place, and at least isolated storm clusters could pose a risk for damaging winds. By Monday, an upper shortwave trough will emanating from an upper low near Hudson Bay will dig southward across the Great Lakes. This will result in increasing northwesterly flow aloft. Meanwhile, a surface low may move eastward across the Great Lakes near the international border while a stronger nocturnal low-level jet develops over parts of the Great Lakes and Ohio Valley. This stronger flow will overspread a moist and unstable airmass, and potential for thunderstorm clusters developing into an MCS appears possible. While details remain uncertain regarding convective evolution and coverage on Sunday and Monday, through broader synoptic pattern appears favorable for at least isolated severe thunderstorms. The 15 percent severe areas may shift some in the coming days as details become more clear. ...Days 6-8/Tue-Thu... It is possible some severe potential could shift east/southeast on Tuesday toward the central Appalachians and the Mid-Atlantic. Deep-layer northwesterly flow will not be as strong as prior days, but could still be sufficient for some organized severe risk. Confidence in where greater risk corridors may develop is low, and will largely be influenced by convective evolution in the Days 4-5/Sunday-Monday periods. A strong upper ridge will shift west across the western U.S. late in the period, bringing a broad area of generally weak deep-layer northwesterly flow to the eastern half of the CONUS. Some thunderstorm potential is likely within this typical summertime pattern across the Plain into the East, but severe potential is uncertain.
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0226 AM CDT Wed Jul 22 2026 Valid 251200Z - 301200Z ...DISCUSSION... ...Upper Midwest to Ohio Valley and Mid-Atlantic... An upper ridge centered over the High Plains will persist through the middle of next week. Meanwhile, upper troughing will be maintained over the eastern U.S. Periods of enhanced northwesterly flow aloft are expected across parts of the Upper Midwest/Great Lakes into parts of the Ohio Valley and Mid-Atlantic on the eastern periphery of the Plains upper ridge. Several shortwave impulses are forecast to develop southeast from Canada within this northwest flow regime. This could support daily severe thunderstorm chances from the Upper Midwest into the Ohio Valley, and possibly the Mid-Atlantic. However, the timing of these features is uncertain, and midlevel capping could limit the spatial extent of severe potential. It is likely that portions of the Upper Midwest into the Ohio Valley will need severe probabilities in later outlooks, particularly for Day 4-6/Sat-Mon, and possibly the mid-Atlantic by Day 7/Tue. However, confidence in where this risk will develop each day is too low for 15 percent delineation at this time.
STATUS REPORT ON WW 510 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 E MKL TO 30 NE MKL TO 10 S BNA. WW 510 WILL BE ALLOWED TO EXPIRE AT 220500Z. ..MEAD..07/22/26 ATTN...WFO...JKL...MRX...MEG...OHX...RLX... STATUS REPORT FOR WS 510 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS TNC039-055-077-081-099-101-117-119-135-181-187-220500- TN . TENNESSEE COUNTIES INCLUDED ARE DECATUR GILES HENDERSON HICKMAN LAWRENCE LEWIS MARSHALL MAURY PERRY WAYNE WILLIAMSON THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
STATUS REPORT ON WW 510 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 E MKL TO 45 NE MKL TO 20 WNW BNA TO 10 ENE BNA TO 30 ESE BNA. ..MEAD..07/22/26 ATTN...WFO...JKL...MRX...MEG...OHX...RLX... STATUS REPORT FOR WS 510 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS TNC003-005-015-031-039-043-055-077-081-085-099-101-117-119-135- 149-177-181-187-220440- TN . TENNESSEE COUNTIES INCLUDED ARE BEDFORD BENTON CANNON COFFEE DECATUR DICKSON GILES HENDERSON HICKMAN HUMPHREYS LAWRENCE LEWIS MARSHALL MAURY PERRY RUTHERFORD WARREN WAYNE WILLIAMSON THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 510 NWS Storm Prediction Center Norman OK 510 PM CDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southeast Kentucky Northern Tennessee Extreme Southwest Virginia Southern West Virginia * Effective this Tuesday afternoon from 510 PM until Midnight CDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...A line of scattered intense thunderstorms over Kentucky will sag southward into the watch area through the evening. Damaging winds are the main concern, but hail and a tornado or two are also possible. The severe thunderstorm watch area is approximately along and 40 statute miles north and south of a line from Dyersburg TN to 110 miles east of Jackson KY. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU0). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 506...WW 507...WW 508...WW 509... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 30025. ...Hart
STATUS REPORT ON WW 510 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 N DYR TO 10 S CKV TO 35 NE BNA TO 35 WNW CSV. ..MEAD..07/22/26 ATTN...WFO...JKL...MRX...MEG...OHX...RLX... STATUS REPORT FOR WS 510 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS TNC003-005-015-017-021-031-035-037-039-041-043-053-055-061-077- 079-081-083-085-099-101-117-119-135-141-149-159-175-177-181-183- 185-187-189-220340- TN . TENNESSEE COUNTIES INCLUDED ARE BEDFORD BENTON CANNON CARROLL CHEATHAM COFFEE CUMBERLAND DAVIDSON DECATUR DE KALB DICKSON GIBSON GILES GRUNDY HENDERSON HENRY HICKMAN HOUSTON HUMPHREYS LAWRENCE LEWIS MARSHALL MAURY PERRY PUTNAM RUTHERFORD SMITH VAN BUREN WARREN WAYNE WEAKLEY WHITE WILLIAMSON WILSON THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 510 NWS Storm Prediction Center Norman OK 510 PM CDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southeast Kentucky Northern Tennessee Extreme Southwest Virginia Southern West Virginia * Effective this Tuesday afternoon from 510 PM until Midnight CDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...A line of scattered intense thunderstorms over Kentucky will sag southward into the watch area through the evening. Damaging winds are the main concern, but hail and a tornado or two are also possible. The severe thunderstorm watch area is approximately along and 40 statute miles north and south of a line from Dyersburg TN to 110 miles east of Jackson KY. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU0). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 506...WW 507...WW 508...WW 509... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 30025. ...Hart
STATUS REPORT ON WW 510 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 N DYR TO 25 SSW BWG TO 45 N CSV TO 40 N TYS. ..MEAD..07/22/26 ATTN...WFO...JKL...MRX...MEG...OHX...RLX... STATUS REPORT FOR WS 510 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS TNC003-005-015-017-021-027-031-035-037-039-041-043-045-049-053- 055-061-077-079-081-083-085-087-099-101-111-117-119-125-133-135- 137-141-147-149-159-161-165-169-175-177-181-183-185-187-189- 220240- TN . TENNESSEE COUNTIES INCLUDED ARE BEDFORD BENTON CANNON CARROLL CHEATHAM CLAY COFFEE CUMBERLAND DAVIDSON DECATUR DE KALB DICKSON DYER FENTRESS GIBSON GILES GRUNDY HENDERSON HENRY HICKMAN HOUSTON HUMPHREYS JACKSON LAWRENCE LEWIS MACON MARSHALL MAURY MONTGOMERY OVERTON PERRY PICKETT PUTNAM ROBERTSON RUTHERFORD SMITH STEWART SUMNER TROUSDALE VAN BUREN WARREN WAYNE WEAKLEY WHITE WILLIAMSON WILSON
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 510 NWS Storm Prediction Center Norman OK 510 PM CDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southeast Kentucky Northern Tennessee Extreme Southwest Virginia Southern West Virginia * Effective this Tuesday afternoon from 510 PM until Midnight CDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...A line of scattered intense thunderstorms over Kentucky will sag southward into the watch area through the evening. Damaging winds are the main concern, but hail and a tornado or two are also possible. The severe thunderstorm watch area is approximately along and 40 statute miles north and south of a line from Dyersburg TN to 110 miles east of Jackson KY. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU0). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 506...WW 507...WW 508...WW 509... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 30025. ...Hart
STATUS REPORT ON WW 508 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SSW PAH TO 35 N LOZ. ..MEAD..07/22/26 ATTN...WFO...PAH...LMK...JKL... STATUS REPORT FOR WS 508 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KYC001-003-009-025-035-047-051-053-057-075-083-105-109-125-129- 141-153-169-171-189-199-207-213-219-221-227-231-220140- KY . KENTUCKY COUNTIES INCLUDED ARE ADAIR ALLEN BARREN BREATHITT CALLOWAY CHRISTIAN CLAY CLINTON CUMBERLAND FULTON GRAVES HICKMAN JACKSON LAUREL LEE LOGAN MAGOFFIN METCALFE MONROE OWSLEY PULASKI RUSSELL SIMPSON TODD TRIGG WARREN WAYNE THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
STATUS REPORT ON WW 509 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 S WAL TO 40 W RIC TO 30 SW SHD TO 20 W HGR. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1702 ..WEINMAN..07/22/26 ATTN...WFO...LWX...PHI...AKQ...RNK... STATUS REPORT FOR WS 509 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS DEC001-005-220140- DE . DELAWARE COUNTIES INCLUDED ARE KENT SUSSEX DCC001-220140- DC . DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE DISTRICT OF COLUMBIA MDC003-005-009-011-013-015-017-019-021-025-027-029-031-033-035- 037-039-041-043-045-047-510-220140- MD . MARYLAND COUNTIES INCLUDED ARE ANNE ARUNDEL BALTIMORE CALVERT
STATUS REPORT ON WW 510 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..MEAD..07/22/26 ATTN...WFO...JKL...MRX...MEG...OHX...RLX... STATUS REPORT FOR WS 510 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KYC013-071-095-119-121-131-133-147-159-193-195-235-220140- KY . KENTUCKY COUNTIES INCLUDED ARE BELL FLOYD HARLAN KNOTT KNOX LESLIE LETCHER MCCREARY MARTIN PERRY PIKE WHITLEY TNC001-005-013-015-017-021-025-027-035-037-039-041-043-045-049- 053-067-077-079-081-083-085-087-095-111-125-129-131-133-135-137- 141-147-149-151-159-161-165-169-173-183-185-187-189-220140- TN . TENNESSEE COUNTIES INCLUDED ARE ANDERSON BENTON CAMPBELL CANNON CARROLL CHEATHAM CLAIBORNE CLAY CUMBERLAND DAVIDSON DECATUR DE KALB DICKSON DYER FENTRESS GIBSON HANCOCK HENDERSON HENRY HICKMAN HOUSTON HUMPHREYS JACKSON LAKE
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 508 NWS Storm Prediction Center Norman OK 120 PM CDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Far Southern Illinois Far Southern Indiana Kentucky * Effective this Tuesday afternoon and evening from 120 PM until 900 PM CDT. * Primary threats include... Widespread damaging wind gusts to 70 mph likely Scattered large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Thunderstorms coverage and intensity is expected to increase this afternoon along a cold front pushing southeastward into the region. Very warm and moist conditions ahead of the front will support robust buoyancy, with moderate vertical shear in place as well. Initial supercells could produce all severe hazards, including isolated large hail and potentially even a brief tornado. A trend towards a more linear mode is anticipated with time, with damaging gusts as the primary severe risk. The severe thunderstorm watch area is approximately along and 60 statute miles north and south of a line from 30 miles east northeast of Lexington KY to 30 miles north northwest of Paducah KY. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU8). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 506...WW 507... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 29030. ...Mosier
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 509 NWS Storm Prediction Center Norman OK 245 PM EDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of District Of Columbia Delaware Maryland Far Northwest North Carolina Virginia The Eastern West Virginia Panhandle Coastal Waters * Effective this Tuesday afternoon and evening from 245 PM until 1000 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Multiple rounds of strong to severe thunderstorms are expected across the region today and tonight, beginning with the ongoing storms across central Virginia. Environmental conditions support robust updrafts, with all severe hazards possible, including damaging gusts and isolated hail. A low-probability tornado risk exists with any afternoon development as well. Another round of storms is possible along a cold front later tonight, with damaging gusts as the primary risk. A low-probability, line-embedded tornado risk exists with these more linear storms as well. The severe thunderstorm watch area is approximately along and 105 statute miles east and west of a line from 30 miles north northeast of Baltimore MD to 10 miles west of South Hill VA. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU9). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 506...WW 507...WW 508... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 26030. ...Mosier
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 510 NWS Storm Prediction Center Norman OK 510 PM CDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southeast Kentucky Northern Tennessee Extreme Southwest Virginia Southern West Virginia * Effective this Tuesday afternoon from 510 PM until Midnight CDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...A line of scattered intense thunderstorms over Kentucky will sag southward into the watch area through the evening. Damaging winds are the main concern, but hail and a tornado or two are also possible. The severe thunderstorm watch area is approximately along and 40 statute miles north and south of a line from Dyersburg TN to 110 miles east of Jackson KY. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU0). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 506...WW 507...WW 508...WW 509... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 30025. ...Hart
STATUS REPORT ON WW 506 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 W HTS TO 30 WSW MGW TO 45 E MGW. ..LYONS..07/21/26 ATTN...WFO...ILN...RLX...PBZ... STATUS REPORT FOR WS 506 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KYC019-043-089-127-135-212340- KY . KENTUCKY COUNTIES INCLUDED ARE BOYD CARTER GREENUP LAWRENCE LEWIS OHC087-212340- OH . OHIO COUNTIES INCLUDED ARE LAWRENCE WVC001-005-007-011-013-015-017-019-021-033-035-039-041-043-053- 067-075-077-079-083-085-087-091-093-097-099-101-105-212340- WV . WEST VIRGINIA COUNTIES INCLUDED ARE BARBOUR BOONE BRAXTON CABELL CALHOUN CLAY
STATUS REPORT ON WW 507 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 W ILG TO 5 WNW TTN TO 20 SSE MSV TO 15 SSW PSF TO 10 WNW BAF. ..LYONS..07/21/26 ATTN...WFO...OKX...ALY...PHI...BGM...CTP... STATUS REPORT FOR WT 507 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS CTC001-005-009-212340- CT . CONNECTICUT COUNTIES INCLUDED ARE FAIRFIELD LITCHFIELD NEW HAVEN DEC003-212340- DE . DELAWARE COUNTIES INCLUDED ARE NEW CASTLE NJC001-003-005-007-009-011-013-015-017-021-023-025-027-029-031- 033-035-039-212340- NJ . NEW JERSEY COUNTIES INCLUDED ARE ATLANTIC BERGEN BURLINGTON CAMDEN CAPE MAY CUMBERLAND ESSEX GLOUCESTER HUDSON
STATUS REPORT ON WW 508 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 SW PAH TO 30 ESE LEX. ..MEAD..07/21/26 ATTN...WFO...PAH...LMK...JKL... STATUS REPORT FOR WS 508 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC127-220040- IL . ILLINOIS COUNTIES INCLUDED ARE MASSAC KYC001-003-007-009-021-025-031-033-035-039-045-047-051-053-057- 061-065-075-079-083-085-087-093-099-105-107-109-115-123-125-129- 137-139-141-143-145-149-151-153-155-157-169-171-175-177-183-189- 197-199-203-207-213-217-219-221-227-229-231-237-220040- KY . KENTUCKY COUNTIES INCLUDED ARE ADAIR ALLEN BALLARD BARREN BOYLE BREATHITT BUTLER CALDWELL CALLOWAY CARLISLE CASEY CHRISTIAN CLAY CLINTON CUMBERLAND EDMONSON ESTILL FULTON GARRARD GRAVES GRAYSON GREEN HARDIN HART HICKMAN HOPKINS JACKSON
STATUS REPORT ON WW 509 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..LYONS..07/21/26 ATTN...WFO...LWX...PHI...AKQ...RNK... STATUS REPORT FOR WS 509 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS DEC001-005-212340- DE . DELAWARE COUNTIES INCLUDED ARE KENT SUSSEX DCC001-212340- DC . DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE DISTRICT OF COLUMBIA MDC001-003-005-009-011-013-015-017-019-021-023-025-027-029-031- 033-035-037-039-041-043-045-047-510-212340- MD . MARYLAND COUNTIES INCLUDED ARE ALLEGANY ANNE ARUNDEL BALTIMORE CALVERT CAROLINE CARROLL CECIL CHARLES DORCHESTER FREDERICK GARRETT HARFORD
STATUS REPORT ON WW 510 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..MEAD..07/21/26 ATTN...WFO...JKL...MRX...MEG...OHX...RLX... STATUS REPORT FOR WS 510 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KYC013-071-095-119-121-131-133-147-159-193-195-235-220040- KY . KENTUCKY COUNTIES INCLUDED ARE BELL FLOYD HARLAN KNOTT KNOX LESLIE LETCHER MCCREARY MARTIN PERRY PIKE WHITLEY TNC001-005-013-015-017-021-025-027-035-037-039-041-043-045-049- 053-067-077-079-081-083-085-087-095-111-125-129-131-133-135-137- 141-147-149-151-159-161-165-169-173-183-185-187-189-220040- TN . TENNESSEE COUNTIES INCLUDED ARE ANDERSON BENTON CAMPBELL CANNON CARROLL CHEATHAM CLAIBORNE CLAY CUMBERLAND DAVIDSON DECATUR DE KALB DICKSON DYER FENTRESS GIBSON HANCOCK HENDERSON HENRY HICKMAN HOUSTON HUMPHREYS JACKSON LAKE
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 506 NWS Storm Prediction Center Norman OK 110 PM EDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Far Southeast Indiana Far Northern Kentucky Central and Southern Ohio Southwest Pennsylvania West Virginia * Effective this Tuesday afternoon and evening from 110 PM until 800 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Scattered large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Thunderstorm coverage is expected to increase this afternoon as a pre-frontal trough and associated cold front moves through the region. Overall environmental conditions favor strong to severe thunderstorms, with a linear convective mode favoring damaging gusts as the primary risk. Low-level shear is also strong enough to support a low-probability risk for a few brief, line-embedded tornadoes as well. The severe thunderstorm watch area is approximately along and 80 statute miles north and south of a line from 75 miles north northeast of White Sulphur Springs WV to 50 miles west northwest of Cincinnati OH. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU6). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 27035. ...Mosier
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 507 NWS Storm Prediction Center Norman OK 205 PM EDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Western Connecticut Northern Delaware New Jersey Central and Southern New York Western Pennsylvania Coastal Waters * Effective this Tuesday afternoon and evening from 205 PM until 900 PM EDT. * Primary threats include... A couple tornadoes possible Scattered damaging wind gusts to 70 mph likely Scattered large hail events to 1.5 inches in diameter possible SUMMARY...Thunderstorm intensity has recently increased from central New York across eastern Pennsylvania, in the vicinity of a warm front moving northward/northeastward across the region. Deep-layer shear is forecast to increase with some increase in low to mid-level flow as well. This increased shear could support some more organized storm structures capable of producing tornadoes as these storms continue eastward. Damaging gusts are possible as well, particularly as storms trend towards a more linear structure over time. Another round of storms is possible later this evening, and some severe threat will accompany these storms as well. The tornado watch area is approximately along and 60 statute miles east and west of a line from 30 miles northwest of Albany NY to 20 miles south southwest of Wilmington DE. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU7). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. && OTHER WATCH INFORMATION...CONTINUE...WW 506... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 27035. ...Mosier
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 508 NWS Storm Prediction Center Norman OK 120 PM CDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Far Southern Illinois Far Southern Indiana Kentucky * Effective this Tuesday afternoon and evening from 120 PM until 900 PM CDT. * Primary threats include... Widespread damaging wind gusts to 70 mph likely Scattered large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Thunderstorms coverage and intensity is expected to increase this afternoon along a cold front pushing southeastward into the region. Very warm and moist conditions ahead of the front will support robust buoyancy, with moderate vertical shear in place as well. Initial supercells could produce all severe hazards, including isolated large hail and potentially even a brief tornado. A trend towards a more linear mode is anticipated with time, with damaging gusts as the primary severe risk. The severe thunderstorm watch area is approximately along and 60 statute miles north and south of a line from 30 miles east northeast of Lexington KY to 30 miles north northwest of Paducah KY. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU8). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 506...WW 507... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 29030. ...Mosier
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 509 NWS Storm Prediction Center Norman OK 245 PM EDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of District Of Columbia Delaware Maryland Far Northwest North Carolina Virginia The Eastern West Virginia Panhandle Coastal Waters * Effective this Tuesday afternoon and evening from 245 PM until 1000 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Multiple rounds of strong to severe thunderstorms are expected across the region today and tonight, beginning with the ongoing storms across central Virginia. Environmental conditions support robust updrafts, with all severe hazards possible, including damaging gusts and isolated hail. A low-probability tornado risk exists with any afternoon development as well. Another round of storms is possible along a cold front later tonight, with damaging gusts as the primary risk. A low-probability, line-embedded tornado risk exists with these more linear storms as well. The severe thunderstorm watch area is approximately along and 105 statute miles east and west of a line from 30 miles north northeast of Baltimore MD to 10 miles west of South Hill VA. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU9). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 506...WW 507...WW 508... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 26030. ...Mosier
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 510 NWS Storm Prediction Center Norman OK 510 PM CDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southeast Kentucky Northern Tennessee Extreme Southwest Virginia Southern West Virginia * Effective this Tuesday afternoon from 510 PM until Midnight CDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...A line of scattered intense thunderstorms over Kentucky will sag southward into the watch area through the evening. Damaging winds are the main concern, but hail and a tornado or two are also possible. The severe thunderstorm watch area is approximately along and 40 statute miles north and south of a line from Dyersburg TN to 110 miles east of Jackson KY. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU0). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 506...WW 507...WW 508...WW 509... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 30025. ...Hart
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 510 NWS Storm Prediction Center Norman OK 510 PM CDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southeast Kentucky Northern Tennessee Extreme Southwest Virginia Southern West Virginia * Effective this Tuesday afternoon from 510 PM until Midnight CDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...A line of scattered intense thunderstorms over Kentucky will sag southward into the watch area through the evening. Damaging winds are the main concern, but hail and a tornado or two are also possible. The severe thunderstorm watch area is approximately along and 40 statute miles north and south of a line from Dyersburg TN to 110 miles east of Jackson KY. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU0). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 506...WW 507...WW 508...WW 509... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 30025. ...Hart
STATUS REPORT ON WW 508 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 SW PAH TO 30 ESE LEX. ..MEAD..07/21/26 ATTN...WFO...PAH...LMK...JKL... STATUS REPORT FOR WS 508 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC127-220040- IL . ILLINOIS COUNTIES INCLUDED ARE MASSAC KYC001-003-007-009-021-025-031-033-035-039-045-047-051-053-057- 061-065-075-079-083-085-087-093-099-105-107-109-115-123-125-129- 137-139-141-143-145-149-151-153-155-157-169-171-175-177-183-189- 197-199-203-207-213-217-219-221-227-229-231-237-220040- KY . KENTUCKY COUNTIES INCLUDED ARE ADAIR ALLEN BALLARD BARREN BOYLE BREATHITT BUTLER CALDWELL CALLOWAY CARLISLE CASEY CHRISTIAN CLAY CLINTON CUMBERLAND EDMONSON ESTILL FULTON GARRARD GRAVES GRAYSON GREEN HARDIN HART HICKMAN HOPKINS JACKSON
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 508 NWS Storm Prediction Center Norman OK 120 PM CDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Far Southern Illinois Far Southern Indiana Kentucky * Effective this Tuesday afternoon and evening from 120 PM until 900 PM CDT. * Primary threats include... Widespread damaging wind gusts to 70 mph likely Scattered large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Thunderstorms coverage and intensity is expected to increase this afternoon along a cold front pushing southeastward into the region. Very warm and moist conditions ahead of the front will support robust buoyancy, with moderate vertical shear in place as well. Initial supercells could produce all severe hazards, including isolated large hail and potentially even a brief tornado. A trend towards a more linear mode is anticipated with time, with damaging gusts as the primary severe risk. The severe thunderstorm watch area is approximately along and 60 statute miles north and south of a line from 30 miles east northeast of Lexington KY to 30 miles north northwest of Paducah KY. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU8). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 506...WW 507... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 29030. ...Mosier
STATUS REPORT ON WW 506 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 W HTS TO 30 WSW MGW TO 45 E MGW. ..LYONS..07/21/26 ATTN...WFO...ILN...RLX...PBZ... STATUS REPORT FOR WS 506 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KYC019-043-089-127-135-212340- KY . KENTUCKY COUNTIES INCLUDED ARE BOYD CARTER GREENUP LAWRENCE LEWIS OHC087-212340- OH . OHIO COUNTIES INCLUDED ARE LAWRENCE WVC001-005-007-011-013-015-017-019-021-033-035-039-041-043-053- 067-075-077-079-083-085-087-091-093-097-099-101-105-212340- WV . WEST VIRGINIA COUNTIES INCLUDED ARE BARBOUR BOONE BRAXTON CABELL CALHOUN CLAY
STATUS REPORT ON WW 507 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 W ILG TO 5 WNW TTN TO 20 SSE MSV TO 15 SSW PSF TO 10 WNW BAF. ..LYONS..07/21/26 ATTN...WFO...OKX...ALY...PHI...BGM...CTP... STATUS REPORT FOR WT 507 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS CTC001-005-009-212340- CT . CONNECTICUT COUNTIES INCLUDED ARE FAIRFIELD LITCHFIELD NEW HAVEN DEC003-212340- DE . DELAWARE COUNTIES INCLUDED ARE NEW CASTLE NJC001-003-005-007-009-011-013-015-017-021-023-025-027-029-031- 033-035-039-212340- NJ . NEW JERSEY COUNTIES INCLUDED ARE ATLANTIC BERGEN BURLINGTON CAMDEN CAPE MAY CUMBERLAND ESSEX GLOUCESTER HUDSON
STATUS REPORT ON WW 509 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..LYONS..07/21/26 ATTN...WFO...LWX...PHI...AKQ...RNK... STATUS REPORT FOR WS 509 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS DEC001-005-212340- DE . DELAWARE COUNTIES INCLUDED ARE KENT SUSSEX DCC001-212340- DC . DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE DISTRICT OF COLUMBIA MDC001-003-005-009-011-013-015-017-019-021-023-025-027-029-031- 033-035-037-039-041-043-045-047-510-212340- MD . MARYLAND COUNTIES INCLUDED ARE ALLEGANY ANNE ARUNDEL BALTIMORE CALVERT CAROLINE CARROLL CECIL CHARLES DORCHESTER FREDERICK GARRETT HARFORD
STATUS FOR WATCH 0510 HAS NOT BEEN ISSUED YET
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 506 NWS Storm Prediction Center Norman OK 110 PM EDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Far Southeast Indiana Far Northern Kentucky Central and Southern Ohio Southwest Pennsylvania West Virginia * Effective this Tuesday afternoon and evening from 110 PM until 800 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Scattered large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Thunderstorm coverage is expected to increase this afternoon as a pre-frontal trough and associated cold front moves through the region. Overall environmental conditions favor strong to severe thunderstorms, with a linear convective mode favoring damaging gusts as the primary risk. Low-level shear is also strong enough to support a low-probability risk for a few brief, line-embedded tornadoes as well. The severe thunderstorm watch area is approximately along and 80 statute miles north and south of a line from 75 miles north northeast of White Sulphur Springs WV to 50 miles west northwest of Cincinnati OH. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU6). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 27035. ...Mosier
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 507 NWS Storm Prediction Center Norman OK 205 PM EDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Western Connecticut Northern Delaware New Jersey Central and Southern New York Western Pennsylvania Coastal Waters * Effective this Tuesday afternoon and evening from 205 PM until 900 PM EDT. * Primary threats include... A couple tornadoes possible Scattered damaging wind gusts to 70 mph likely Scattered large hail events to 1.5 inches in diameter possible SUMMARY...Thunderstorm intensity has recently increased from central New York across eastern Pennsylvania, in the vicinity of a warm front moving northward/northeastward across the region. Deep-layer shear is forecast to increase with some increase in low to mid-level flow as well. This increased shear could support some more organized storm structures capable of producing tornadoes as these storms continue eastward. Damaging gusts are possible as well, particularly as storms trend towards a more linear structure over time. Another round of storms is possible later this evening, and some severe threat will accompany these storms as well. The tornado watch area is approximately along and 60 statute miles east and west of a line from 30 miles northwest of Albany NY to 20 miles south southwest of Wilmington DE. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU7). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. && OTHER WATCH INFORMATION...CONTINUE...WW 506... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 27035. ...Mosier
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 509 NWS Storm Prediction Center Norman OK 245 PM EDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of District Of Columbia Delaware Maryland Far Northwest North Carolina Virginia The Eastern West Virginia Panhandle Coastal Waters * Effective this Tuesday afternoon and evening from 245 PM until 1000 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Multiple rounds of strong to severe thunderstorms are expected across the region today and tonight, beginning with the ongoing storms across central Virginia. Environmental conditions support robust updrafts, with all severe hazards possible, including damaging gusts and isolated hail. A low-probability tornado risk exists with any afternoon development as well. Another round of storms is possible along a cold front later tonight, with damaging gusts as the primary risk. A low-probability, line-embedded tornado risk exists with these more linear storms as well. The severe thunderstorm watch area is approximately along and 105 statute miles east and west of a line from 30 miles north northeast of Baltimore MD to 10 miles west of South Hill VA. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU9). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 506...WW 507...WW 508... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 26030. ...Mosier
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 510 NWS Storm Prediction Center Norman OK 510 PM CDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southeast Kentucky Northern Tennessee Extreme Southwest Virginia Southern West Virginia * Effective this Tuesday afternoon from 510 PM until Midnight CDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...A line of scattered intense thunderstorms over Kentucky will sag southward into the watch area through the evening. Damaging winds are the main concern, but hail and a tornado or two are also possible. The severe thunderstorm watch area is approximately along and 40 statute miles north and south of a line from Dyersburg TN to 110 miles east of Jackson KY. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU0). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 506...WW 507...WW 508...WW 509... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 30025. ...Hart
STATUS REPORT ON WW 508 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 NW POF TO 10 SE LEX TO 55 E LUK. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1699 ..LYONS..07/21/26 ATTN...WFO...PAH...LMK...JKL... STATUS REPORT FOR WS 508 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC003-127-153-212340- IL . ILLINOIS COUNTIES INCLUDED ARE ALEXANDER MASSAC PULASKI KYC001-003-007-009-011-021-025-027-031-033-035-039-045-047-049- 051-053-055-057-059-061-063-065-069-075-079-083-085-087-093-099- 105-107-109-113-115-123-125-129-137-139-141-143-145-149-151-153- 155-157-165-167-169-171-173-175-177-179-181-183-189-197-199-203- 205-207-213-217-219-221-227-229-231-233-237-212340- KY . KENTUCKY COUNTIES INCLUDED ARE ADAIR ALLEN BALLARD BARREN BATH BOYLE BREATHITT BRECKINRIDGE BUTLER CALDWELL CALLOWAY CARLISLE CASEY CHRISTIAN CLARK CLAY CLINTON CRITTENDEN
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 508 NWS Storm Prediction Center Norman OK 120 PM CDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Far Southern Illinois Far Southern Indiana Kentucky * Effective this Tuesday afternoon and evening from 120 PM until 900 PM CDT. * Primary threats include... Widespread damaging wind gusts to 70 mph likely Scattered large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Thunderstorms coverage and intensity is expected to increase this afternoon along a cold front pushing southeastward into the region. Very warm and moist conditions ahead of the front will support robust buoyancy, with moderate vertical shear in place as well. Initial supercells could produce all severe hazards, including isolated large hail and potentially even a brief tornado. A trend towards a more linear mode is anticipated with time, with damaging gusts as the primary severe risk. The severe thunderstorm watch area is approximately along and 60 statute miles north and south of a line from 30 miles east northeast of Lexington KY to 30 miles north northwest of Paducah KY. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU8). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 506...WW 507... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 29030. ...Mosier
STATUS REPORT ON WW 507 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NW AVP TO 30 SE BGM TO 50 N MSV TO 15 W ALB TO 5 NE GFL. ..BENTLEY..07/21/26 ATTN...WFO...OKX...ALY...PHI...BGM...CTP... STATUS REPORT FOR WT 507 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS CTC001-005-009-212140- CT . CONNECTICUT COUNTIES INCLUDED ARE FAIRFIELD LITCHFIELD NEW HAVEN DEC003-212140- DE . DELAWARE COUNTIES INCLUDED ARE NEW CASTLE NJC001-003-005-007-009-011-013-015-017-019-021-023-025-027-029- 031-033-035-037-039-041-212140- NJ . NEW JERSEY COUNTIES INCLUDED ARE ATLANTIC BERGEN BURLINGTON CAMDEN CAPE MAY CUMBERLAND ESSEX GLOUCESTER HUDSON
STATUS REPORT ON WW 509 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..BENTLEY..07/21/26 ATTN...WFO...LWX...PHI...AKQ...RNK... STATUS REPORT FOR WS 509 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS DEC001-005-212140- DE . DELAWARE COUNTIES INCLUDED ARE KENT SUSSEX DCC001-212140- DC . DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE DISTRICT OF COLUMBIA MDC001-003-005-009-011-013-015-017-019-021-023-025-027-029-031- 033-035-037-039-041-043-045-047-510-212140- MD . MARYLAND COUNTIES INCLUDED ARE ALLEGANY ANNE ARUNDEL BALTIMORE CALVERT CAROLINE CARROLL CECIL CHARLES DORCHESTER FREDERICK GARRETT HARFORD
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 507 NWS Storm Prediction Center Norman OK 205 PM EDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Western Connecticut Northern Delaware New Jersey Central and Southern New York Western Pennsylvania Coastal Waters * Effective this Tuesday afternoon and evening from 205 PM until 900 PM EDT. * Primary threats include... A couple tornadoes possible Scattered damaging wind gusts to 70 mph likely Scattered large hail events to 1.5 inches in diameter possible SUMMARY...Thunderstorm intensity has recently increased from central New York across eastern Pennsylvania, in the vicinity of a warm front moving northward/northeastward across the region. Deep-layer shear is forecast to increase with some increase in low to mid-level flow as well. This increased shear could support some more organized storm structures capable of producing tornadoes as these storms continue eastward. Damaging gusts are possible as well, particularly as storms trend towards a more linear structure over time. Another round of storms is possible later this evening, and some severe threat will accompany these storms as well. The tornado watch area is approximately along and 60 statute miles east and west of a line from 30 miles northwest of Albany NY to 20 miles south southwest of Wilmington DE. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU7). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. && OTHER WATCH INFORMATION...CONTINUE...WW 506... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 27035. ...Mosier
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 509 NWS Storm Prediction Center Norman OK 245 PM EDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of District Of Columbia Delaware Maryland Far Northwest North Carolina Virginia The Eastern West Virginia Panhandle Coastal Waters * Effective this Tuesday afternoon and evening from 245 PM until 1000 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Multiple rounds of strong to severe thunderstorms are expected across the region today and tonight, beginning with the ongoing storms across central Virginia. Environmental conditions support robust updrafts, with all severe hazards possible, including damaging gusts and isolated hail. A low-probability tornado risk exists with any afternoon development as well. Another round of storms is possible along a cold front later tonight, with damaging gusts as the primary risk. A low-probability, line-embedded tornado risk exists with these more linear storms as well. The severe thunderstorm watch area is approximately along and 105 statute miles east and west of a line from 30 miles north northeast of Baltimore MD to 10 miles west of South Hill VA. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU9). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 506...WW 507...WW 508... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 26030. ...Mosier
STATUS REPORT ON WW 506 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 NNE SDF TO 20 NE LUK TO 30 SW CMH TO 35 SSE MFD. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1693 ..CHALMERS..07/21/26 ATTN...WFO...ILN...RLX...PBZ... STATUS REPORT FOR WS 506 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS INC029-115-137-155-212040- IN . INDIANA COUNTIES INCLUDED ARE DEARBORN OHIO RIPLEY SWITZERLAND KYC015-019-023-037-041-043-077-081-089-117-127-135-161-187-191- 201-212040- KY . KENTUCKY COUNTIES INCLUDED ARE BOONE BOYD BRACKEN CAMPBELL CARROLL CARTER GALLATIN GRANT GREENUP KENTON LAWRENCE LEWIS MASON OWEN PENDLETON ROBERTSON
STATUS REPORT ON WW 508 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 5 WNW MDH TO 40 SE MVN TO 40 SW BMG. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1693 ..CHALMERS..07/21/26 ATTN...WFO...PAH...LMK...JKL... STATUS REPORT FOR WS 508 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC059-069-087-127-151-153-165-199-212040- IL . ILLINOIS COUNTIES INCLUDED ARE GALLATIN HARDIN JOHNSON MASSAC POPE PULASKI SALINE WILLIAMSON INC019-025-037-043-051-061-077-117-123-125-129-143-147-163-173- 175-212040- IN . INDIANA COUNTIES INCLUDED ARE CLARK CRAWFORD DUBOIS FLOYD GIBSON HARRISON JEFFERSON ORANGE PERRY PIKE POSEY SCOTT SPENCER VANDERBURGH WARRICK WASHINGTON
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 506 NWS Storm Prediction Center Norman OK 110 PM EDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Far Southeast Indiana Far Northern Kentucky Central and Southern Ohio Southwest Pennsylvania West Virginia * Effective this Tuesday afternoon and evening from 110 PM until 800 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Scattered large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Thunderstorm coverage is expected to increase this afternoon as a pre-frontal trough and associated cold front moves through the region. Overall environmental conditions favor strong to severe thunderstorms, with a linear convective mode favoring damaging gusts as the primary risk. Low-level shear is also strong enough to support a low-probability risk for a few brief, line-embedded tornadoes as well. The severe thunderstorm watch area is approximately along and 80 statute miles north and south of a line from 75 miles north northeast of White Sulphur Springs WV to 50 miles west northwest of Cincinnati OH. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU6). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 27035. ...Mosier
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 508 NWS Storm Prediction Center Norman OK 120 PM CDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Far Southern Illinois Far Southern Indiana Kentucky * Effective this Tuesday afternoon and evening from 120 PM until 900 PM CDT. * Primary threats include... Widespread damaging wind gusts to 70 mph likely Scattered large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Thunderstorms coverage and intensity is expected to increase this afternoon along a cold front pushing southeastward into the region. Very warm and moist conditions ahead of the front will support robust buoyancy, with moderate vertical shear in place as well. Initial supercells could produce all severe hazards, including isolated large hail and potentially even a brief tornado. A trend towards a more linear mode is anticipated with time, with damaging gusts as the primary severe risk. The severe thunderstorm watch area is approximately along and 60 statute miles north and south of a line from 30 miles east northeast of Lexington KY to 30 miles north northwest of Paducah KY. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU8). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 506...WW 507... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 29030. ...Mosier
STATUS REPORT ON WW 506 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1692 ..CHALMERS..07/21/26 ATTN...WFO...ILN...RLX...PBZ... STATUS REPORT FOR WS 506 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS INC029-041-047-115-137-155-161-177-211940- IN . INDIANA COUNTIES INCLUDED ARE DEARBORN FAYETTE FRANKLIN OHIO RIPLEY SWITZERLAND UNION WAYNE KYC015-019-023-037-041-043-077-081-089-117-127-135-161-187-191- 201-211940- KY . KENTUCKY COUNTIES INCLUDED ARE BOONE BOYD BRACKEN CAMPBELL CARROLL CARTER GALLATIN GRANT GREENUP KENTON LAWRENCE LEWIS MASON OWEN PENDLETON ROBERTSON
STATUS FOR WATCH 0509 HAS NOT BEEN ISSUED YET
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 506 NWS Storm Prediction Center Norman OK 110 PM EDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Far Southeast Indiana Far Northern Kentucky Central and Southern Ohio Southwest Pennsylvania West Virginia * Effective this Tuesday afternoon and evening from 110 PM until 800 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Scattered large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Thunderstorm coverage is expected to increase this afternoon as a pre-frontal trough and associated cold front moves through the region. Overall environmental conditions favor strong to severe thunderstorms, with a linear convective mode favoring damaging gusts as the primary risk. Low-level shear is also strong enough to support a low-probability risk for a few brief, line-embedded tornadoes as well. The severe thunderstorm watch area is approximately along and 80 statute miles north and south of a line from 75 miles north northeast of White Sulphur Springs WV to 50 miles west northwest of Cincinnati OH. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU6). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 27035. ...Mosier
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 509 NWS Storm Prediction Center Norman OK 245 PM EDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of District Of Columbia Delaware Maryland Far Northwest North Carolina Virginia The Eastern West Virginia Panhandle Coastal Waters * Effective this Tuesday afternoon and evening from 245 PM until 1000 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Multiple rounds of strong to severe thunderstorms are expected across the region today and tonight, beginning with the ongoing storms across central Virginia. Environmental conditions support robust updrafts, with all severe hazards possible, including damaging gusts and isolated hail. A low-probability tornado risk exists with any afternoon development as well. Another round of storms is possible along a cold front later tonight, with damaging gusts as the primary risk. A low-probability, line-embedded tornado risk exists with these more linear storms as well. The severe thunderstorm watch area is approximately along and 105 statute miles east and west of a line from 30 miles north northeast of Baltimore MD to 10 miles west of South Hill VA. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU9). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 506...WW 507...WW 508... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 26030. ...Mosier
STATUS FOR WATCH 0508 HAS NOT BEEN ISSUED YET
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 508 NWS Storm Prediction Center Norman OK 120 PM CDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Far Southern Illinois Far Southern Indiana Kentucky * Effective this Tuesday afternoon and evening from 120 PM until 900 PM CDT. * Primary threats include... Widespread damaging wind gusts to 70 mph likely Scattered large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Thunderstorms coverage and intensity is expected to increase this afternoon along a cold front pushing southeastward into the region. Very warm and moist conditions ahead of the front will support robust buoyancy, with moderate vertical shear in place as well. Initial supercells could produce all severe hazards, including isolated large hail and potentially even a brief tornado. A trend towards a more linear mode is anticipated with time, with damaging gusts as the primary severe risk. The severe thunderstorm watch area is approximately along and 60 statute miles north and south of a line from 30 miles east northeast of Lexington KY to 30 miles north northwest of Paducah KY. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU8). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 506...WW 507... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 29030. ...Mosier
STATUS FOR WATCH 0507 HAS NOT BEEN ISSUED YET
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 507 NWS Storm Prediction Center Norman OK 205 PM EDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Western Connecticut Northern Delaware New Jersey Central and Southern New York Western Pennsylvania Coastal Waters * Effective this Tuesday afternoon and evening from 205 PM until 900 PM EDT. * Primary threats include... A couple tornadoes possible Scattered damaging wind gusts to 70 mph likely Scattered large hail events to 1.5 inches in diameter possible SUMMARY...Thunderstorm intensity has recently increased from central New York across eastern Pennsylvania, in the vicinity of a warm front moving northward/northeastward across the region. Deep-layer shear is forecast to increase with some increase in low to mid-level flow as well. This increased shear could support some more organized storm structures capable of producing tornadoes as these storms continue eastward. Damaging gusts are possible as well, particularly as storms trend towards a more linear structure over time. Another round of storms is possible later this evening, and some severe threat will accompany these storms as well. The tornado watch area is approximately along and 60 statute miles east and west of a line from 30 miles northwest of Albany NY to 20 miles south southwest of Wilmington DE. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU7). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. && OTHER WATCH INFORMATION...CONTINUE...WW 506... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 27035. ...Mosier
STATUS FOR WATCH 0506 HAS NOT BEEN ISSUED YET
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 506 NWS Storm Prediction Center Norman OK 110 PM EDT Tue Jul 21 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Far Southeast Indiana Far Northern Kentucky Central and Southern Ohio Southwest Pennsylvania West Virginia * Effective this Tuesday afternoon and evening from 110 PM until 800 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Scattered large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Thunderstorm coverage is expected to increase this afternoon as a pre-frontal trough and associated cold front moves through the region. Overall environmental conditions favor strong to severe thunderstorms, with a linear convective mode favoring damaging gusts as the primary risk. Low-level shear is also strong enough to support a low-probability risk for a few brief, line-embedded tornadoes as well. The severe thunderstorm watch area is approximately along and 80 statute miles north and south of a line from 75 miles north northeast of White Sulphur Springs WV to 50 miles west northwest of Cincinnati OH. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU6). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 27035. ...Mosier
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0218 AM CDT Tue Jul 21 2026 Valid 241200Z - 291200Z ...DISCUSSION... ...Great Lakes/Midwest... An amplified upper ridge will persist across the Plains and Rockies through early next week. Periods of strengthening northwesterly mid/upper flow are expected on the eastern periphery of the upper ridge as a series of upper shortwave troughs move across the Canadian Prairies and glance the Great Lakes vicinity, mainly Day 5-7/Sat-Mon. This could support areas of severe thunderstorm potential across parts of the Upper Midwest to the Ohio Valley vicinity during this time as stronger northwesterly flow overspreads a seasonally moist and unstable airmass. However, both traditional physics-based NWP and ML/AI NWP are inconsistent and/or show relatively low/broad probability areas -- increasing uncertainty in timing and spatial delineation of severe potential. Given the proximity to the upper ridge, capping may be a concern. Trends will be monitored and severe probabilities may become necessary is confidence increases in subsequent outlooks.
STATUS REPORT ON WW 505 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 WNW TVC TO 25 NE TVC TO 25 WNW APN. ..MEAD..07/21/26 ATTN...WFO...APX...GRR... STATUS REPORT FOR WS 505 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MIC009-019-035-039-055-079-085-089-101-105-113-119-133-137-165- 210540- MI . MICHIGAN COUNTIES INCLUDED ARE ANTRIM BENZIE CLARE CRAWFORD GRAND TRAVERSE KALKASKA LAKE LEELANAU MANISTEE MASON MISSAUKEE MONTMORENCY OSCEOLA OTSEGO WEXFORD LMZ323-344-345-346-364-366-849-868-210540- CW . ADJACENT COASTAL WATERS INCLUDED ARE GRAND TRAVERSE BAY SOUTH OF A LINE GRAND TRAVERSE LIGHT TO NORWOOD MI SLEEPING BEAR POINT TO GRAND TRAVERSE LIGHT MI POINT BETSIE TO SLEEPING BEAR POINT MI
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 505 NWS Storm Prediction Center Norman OK 750 PM EDT Mon Jul 20 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northern Lower Michigan Lake Huron Lake Michigan Lake Superior * Effective this Monday night and Tuesday morning from 750 PM until 200 AM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph possible Isolated very large hail events to 2 inches in diameter possible A tornado or two possible SUMMARY...Widely scattered intense storms over Upper Michigan and northern Wisconsin will track southeastward into the watch area this evening, posing a risk of damaging winds and hail. A tornado or two is possible. The severe thunderstorm watch area is approximately along and 55 statute miles east and west of a line from 15 miles southeast of Manistee MI to 40 miles north northeast of Pellston MI. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU5). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 500...WW 501...WW 504... AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 28030. ...Hart
STATUS REPORT ON WW 505 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 ESE ESC TO 25 NW APN. ..MEAD..07/21/26 ATTN...WFO...APX...GRR... STATUS REPORT FOR WS 505 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MIC009-019-029-035-039-055-079-085-089-101-105-113-119-133-137- 141-165-210440- MI . MICHIGAN COUNTIES INCLUDED ARE ANTRIM BENZIE CHARLEVOIX CLARE CRAWFORD GRAND TRAVERSE KALKASKA LAKE LEELANAU MANISTEE MASON MISSAUKEE MONTMORENCY OSCEOLA OTSEGO PRESQUE ISLE WEXFORD LMZ323-344-345-346-364-366-849-868-210440- CW . ADJACENT COASTAL WATERS INCLUDED ARE GRAND TRAVERSE BAY SOUTH OF A LINE GRAND TRAVERSE LIGHT TO NORWOOD MI SLEEPING BEAR POINT TO GRAND TRAVERSE LIGHT MI