RiverSwami.com

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~~RiverSwami.com~~ Delaware River conditions, weather, observations, tips & live feeds provided & maintained by a seven-time flood survivor as a public service.

USGS Streamflow chart for the Delaware River at Trenton, Mercer County, NJ showing a Gauge Height of 7.91 feet and receding at 6:15 PM, Thursday, October 23, 2025.
USGS Streamflow chart for the Delaware River at Trenton, Mercer County, New Jersey showing a gage height of 8.01 feet at 5:15 PM Eastern on August 31, 2025. Flood stage is 20 feet.
USGS Streamflow chart for the Delaware River at Trenton, New Jersey at 5:15 PM EDT Friday, August 22, 2025 showing a gauge hight of 8.26 feet.
I ime of high total tides are approximate to the nearest hour. Delaware River at Philadelphia MLLW Categories - Minor 8.2 ft, Moderate 9.2 ft, Major 10.2 ft MHHW Categories -Minor 1.5 ft, Moderate 2.5 ft, Major 3.5 ft Total Total Departure Day/Time Tide Tide from Norm Flood ft MLLW ft MHHW ft Impact 23/02 AM 9.0 2.3 2.0 Minor 23/02 PM 7.9 1.2 1.7 None 24/03 AM 8.6 1.9 1.7 Minor 24/03 PM 8.0 1.3 1.7 None 25/03 AM 8.4 1.7 1.7 Minor Delaware River at Burlington MLLW Categories - Minor 9.3 ft, Moderate 10.3 ft, Major 11.3 ft MHHW Categories -Minor 1.6 ft, Moderate 2.6 ft, Major 3.6 ft Total Total Departure Day/Time Tide Tide ft MHHW from Norm Flood ft Impact ft MLLW 22/03 PM 8.8 1.1 1.7 None 23/03 AM 10.0 2.3 2.0 Minor 23/03 PM 9.2 1.5 2.0 None 24/04 AM 9.6 1.9 1.7 Minor 24/04 PM 9.1 1.4 1.7 None 25/04 AM 9.5 1.8 1.7 Minor &&
Issued by National Weather Service Philadelphia, PA 5:03PM EDT Fri, August 22, 2025 ...COASTAL FLOOD ADVISORY NOW IN EFFECT UNTIL 6 AM EDT SUNDAY... * WHAT... Up to one foot of inundation above ground level in low-lying areas near shorelines and tidal waterways. * WHERE...In New Jersey, Gloucester, Camden and Northwestern Burlington. In Pennsylvania, Delaware, Philadelphia and Lower Bucks. * WHEN...Until 6 AM EDT Sunday. * IMPACTS... At this level, flooding begins on the most vulnerable roads along tidal waterways. Some partial or full road closures are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Coastal Flood Advisory means that minor tidal flooding is expected. Minor tidal flooding often results in some road closures. Usually, the most vulnerable roadways will flood. Do not leave your vehicle at a location that is prone to tidal flooding. Do not drive your vehicle through flood waters. The water may be deeper than you think it is. You will be putting yourself in danger and your vehicle may be damaged, leading to costly repairs.
USGS streamflow graph for the Delaware River at Trenton NJ Sunday, August 3, 2025, 7:15PM showing a gage height of 9.07 feet.
Zoom registration form requiring name, e-mail and street address to register for Energy Transfer info session regarding Upper Makefield, BucksCounty, PA pipeline leak status.
USGS streamflow chart for the Delaware River at Trenton, New Jersey at 5:15 P. M. Wednesday, July 30, 2025, showing a gage height of 8.64 feet. Flood Stage is 20 feet. This is a tidal portion of the river which rises and falls daily. It is shown reaching its tidal peak prior to the tide receding.
USGS Streamflow graph for the Delaware River at Trenton NJ, on Wednesday, July 16, 2025 at 10:15 P. M. shows a gage height of 11 feet. Flood Stage is 20 feet.
The National Weather Service has issued a Flood Watch effective until 2 A. M. Tuesday, July 14, 2025 for parts of New Jersey and Pennsylvania. Possible heavy downpours could result in up to 3 to 5 inches of rain in localized areas.
Radar map at 7:25 PM July 3, 2025 showing severe storm cell moving mostly west to east from Allentown, Pennsylvania area to New Jersey.
Radar map of Delaware, eastern Pennsylvania and New Jersey showing severe storm front with lightning moving through the region.
USGS graph for the Delaware River at Trenton, NJ at 4:15 PM Eastern Time on Friday, June 20, 2025: Streamflow 17200 cubic feet per second. Gage height 10.76 feet. Note: Flood Stage is 20 feet.
Upper Makefield Township Residents: Recharge & Cooling Station Available TODAY, FRIDAY 6/20 during regular normal hours. 2025-06-20 12:08:04 EDT
G4 (Severe) Geomagnetic Storm Watch in Effect for 2 June UTC-Day published: Saturday, May 31, 2025 20:43 UTC A G4 (Severe) geomagnetic storm watch is in effect for 2 June. A powerful coronal mass ejection (CME) erupted from the Sun the evening of 30 May. The CME is anticipated to arrive at Earth later on Sunday, 1 June. The CME arrival will likely lead to immediate geomagnetic disturbances with the potential for G3 (Strong) levels, and a chance for G4. Conditions will likely intensify as CME progression continues and G4 levels become more possible on Monday, 2 June. Geomagnetic storm levels will likely begin subsiding by Tuesday, 3 June, with G1-G2 (Minor-Moderate) still possible. Confidence in an Earth-arrival component to this CME is good. However, timing and intensity are more uncertain. These watches represent potential based on our best analyses. We will not know the true nature of this CME’s geomagnetic storm potential until the CME arrives at our solar wind observatories located 1 million miles from Earth. Upon arrival at those spacecraft, we will know the magnetic strength and orientation that are very important to what levels and duration of geomagnetic storm conditions are expected to occur. As always visit our website for the latest information and updates.
USGS graph for Delaware River at Trenton, New Jersey. Gage height of 10.44 feet on Tuesday, May 27, 2025 at 6:15 PM Eastern Time and receding.
USGS streamflow graph for the Delaware River at Trenton, New Jersey. At 9:15 AM eastern, the gage height is 15.68 feet and has crested.
USGS graph of Delaware River at Trenton, NJ shows a Gage Height of 9.29ft at 7:15 PM ET, May 1, 2025.
Energy Transfer Upper Makefield Response. EnergyTransfer will hold a teletownhall Thursday, March 27 from 7:00PM to 8:30PM. EnergyTransfer will provide updates and respond to questions from residents. ☎️ Dial in at 855-543-3418. Additional information, including upcoming public meetings, FAQs and other resources can be found at https://uppermakefield.incidentupdates.com email uppermakefieldresponse@energytransfer.com
High Wind Warning. What: NE winds 20 to 30 mph. Portions of central, northern and southern Delaware, northeast Maryland, central, northern, northwest, and southern New Jersey, and east central, northeast, and southeast Pennsylvania. When: Until 9 PM EST this evening. Impacts: Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
Photo of cases of Poland Spring water with a picture of a beautiful running river on the packaging, given to residents in Upper and Lower Makefield Townships of who are affected by the Sunoco Energy Transfer pipeline jet fuel leak.
USGS graph for the Delaware River at Trenton NJ. Gauge height of 8.58 feet at 3:15 PM Eastern, Friday February 14, 2025.
NWS 11:15AM SAT 3/23 #FLOOD WARNING TIL 3:15PM FOR #DE #NJ #PA #rivers #creeks #streams flood-prone areas imminent/occurring Radar: mod-heavy #rain 1- 1.5" +1-1.5" poss #NewCastle #Burlington #Camden #Gloucester #Mercer #NJwx #Bucks #Chester #Delaware
USGS GRAPH FOR DELAWARE RIVER AT NEWBOLD ISLAND. GAGE HEIGHT WAS 10.17 FEET AT 5:12 AM, SATURDAY, JANUARY 13, 2024. LAST CRESTED AT HIGH TIDE AT MINOR FLOOD OF 10.88 FEET AT 4 AM SATURDAY, JANUARY 13, 2024. FLOOD STAGE IS 9.3 FEET.
USGS GRAPH FOR DELAWARE RIVER AT TRENTON NJ. GAGE HEIGHT AT 7:15 AM THURSDAY, JANUARY 11, 2024 WAS 16.98 FEET. THE RIVER CRESTED BELOW FLOOD STAGE AT 17.8FT AT 10 PM WEDNESDAY, JANUARY 10, 2024. FLOOD STAGE IS 20 FEET.
USGS GRAPH FOR DELAWARE RIVER AT TRENTON, NJ. GAGE HEIGHT WAS 10.77 FEET AT 12:15 PM TUESDAY. FLOOD STAGE IS 20 FEET. 9:45 AM FORECAST: TO CREST BELOW FLOOD STAGE AT 18.5FT AT APPROXIMATELY 7 AM THURSDAY JANUARY 11, 2024.
USGS graph for Delaware River at Burlington NJ predicts Minor to Moderate flooding during high tides at approximately 1 AM and 1 PM today, Tuesday, January 9, 2024 through Thursday, January 11, 2024.
USGS streamflow graph for Delaware River at Trenton, Mercer County, New Jersey; 2:28 AM, Tuesday, December 28, 2023 forecast to crest at 16.2 feet on Thursday, December 28, 2023 at 7 PM.
USGS graph for Delaware River at New Hope, PA - Lambertville, NJ crested at 9.53 ft. on Tuesday, 12/19, 3:45 PM. Flood stage is 13 ft.
USGS graph for Delaware River at Stockton Centre Bridge crested at 16.35 ft. on Tuesday 12/19 2:15 PM. Flood stage is 18 ft.
USGS graph for Delaware River at Easton Phillipsburg crested at 21.92 ft Tuesday 12/19, 11:45 AM. Flood Stage is 22 ft.
USGS graph for Delaware River at Washington Crossing NJ forecast crest 13.4 ft Tuesday 6PM.
USGS graph for Delaware River at Lambertville - New Hope Bridge 9:33 AM forecast crest at 12.4 ft 5PM Tuesday 12/19. Flood Stage is 13 ft.
USGS graph for Delaware River at Washington Crossing NJ 9:33 AM forecast crest at 14.9 ft 5PM Tuesday 12/9. Flood Stage is 16 ft.
USGS graph for Delaware River at Trenton NJ 9:33 AM FORECAST CREST 19.9 ft 7PM Tuesday. Flood Stage is 20 ft.
USGS Streamflow Gauges Map of I-95 corridor. Currently, 89 of 926 Gauges in #flood stage at 9:30 AM Monday 12/18.
USGS graph for Delaware River at Washington Crossing NJ Gage height 7.72ft at 7 AM. Forecast to crest at 14.2 ft 7PM Tuesday 12/19. Flood Stage is 16 ft.
USGS graph for Delaware River at Trenton, NJ 4:21AM forecast to crest at 19.3 ft 7PM Tuesday 12/19. Flood Stage is 20FT.
USGS graph for tidal portion of Delaware River at Newbold Island. In Moderate Flood at 11.73 ft at 6:36 AM Monday 12/18. Flood Stage is 10.2 ft.
At 10:50PM ET, 0 of 926 Gauges in #flood stage in the Delaware Valley
NWS FLOOD WATCH REMAINS IN EFFECT FOR PORTIONS OF #NJ & #PA UNTIL 4PM MON.