Flow report

New Jersey River Levels & Streamflow

As of Aug 3, 2026, New Jersey rivers are running at 163% of normal across 96 USGS gauges — the highest is 11,400 cfs on the Delaware River At Trenton Nj. Live discharge, gauge height, and percent-of-normal for every USGS streamgauge in New Jersey.

USGS gauges
96
State percent normal
163%
Paddle runs
0
Updated
Aug 3
Open the New Jersey flow layer on the map Every USGS streamgauge filtered to New Jersey.
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August
3
2026
Flow briefing

Streamflow levels across New Jersey are currently 163% of normal, with the Delaware River At Trenton Nj reporting the highest discharge in the state at 11,400 cfs and a gauge stage of 9.89 ft.

Meanwhile, the Passaic River At Little Falls Nj is seeing a spike today — up -13% since yesterday and currently running near peak.

Tap any gauge below for the full hydrograph, paired weather forecast, and historical context. Use the rivers panel to jump into New Jersey's named rivers.

Active weather warnings for New Jersey

# New Jersey Natural Disaster Report - August 3, 2026

New Jersey is experiencing significant flooding threats on August 3rd. A Flash Flood Warning is in effect until 10:45 AM for northeastern counties including Essex, Hudson, and Union, with Newark, Jersey City, Elizabeth, Bayonne, Hoboken, and Secaucus at immediate risk. Heavy rainfall of 1-3 inches has already fallen, with an additional 1-2 inches possible through mid-morning. A broader Flood Watch extends through 8 PM for much of northeastern New Jersey, including Bergen, Passaic, and additional portions of Essex and Union counties, with thunderstorms potentially producing rainfall rates of 1-2 inches per hour. Minor stream flooding is expected in Bergen County communities including Hackensack, Paramus, Fort Lee, and Teaneck. Additionally, dangerous rip currents threaten Atlantic County and Cape May coastal areas through 8 PM. Residents should avoid flooded roadways and low-lying areas, monitor local weather updates, and exercise extreme caution near beaches.

Source: National Weather Service

New Jersey at a glance

State-wide streamflow overview

The New Jersey flow picture in four data points -- where the state sits versus historical norms, what's flowing hardest, and what's spiking fastest.

Percent of normal

163%

100% is the historical norm. Below 70% indicates drought; above 130% can flag elevated flood risk.

Highest discharge

Delaware River At Trenton Nj 11,400 cfs

Gauge stage 9.89 ft

Biggest 24h spike

Passaic River At Little Falls Nj +-13%

Now 1,390 cfs

Network coverage

Gauges + rivers tracked 96 + 0

USGS gauges feeding 0 named rivers in New Jersey.

Full streamgauge inventory

New Jersey USGS streamgauges

Every USGS gauge Snoflo tracks in New Jersey. Sortable, quickly filterable. Numeric columns heat-mapped from light to deep. Tap any gauge for its full hydrograph and forecast.

96 gauges
Streamgage Streamflow Gage height Water temp Air temp Elevation Watershed
Delaware River At Trenton Nj, Nj
14 hours ago · USGS 01463500
9,590 cfs 9.57 ft 76°F 73°F 7 ft Middle Delaware-Musconetcong
Delaware River At Belvidere Nj, Nj
13 hours ago · USGS 01446500
6,930 cfs 5.34 ft 49°F 71°F 232 ft Middle Delaware-Musconetcong
Delaware River At Montague Nj, Nj
13 hours ago · USGS 01438500
4,440 cfs 6.36 ft 74°F 68°F 374 ft Middle Delaware-Mongaup-Brodhead
Passaic River At Little Falls Nj, Nj
13 hours ago · USGS 01389500
1,210 cfs 2.59 ft · 74°F 131 ft Hackensack-Passaic
Passaic River At Pine Brook Nj, Nj
14 hours ago · USGS 01381900
794 cfs 16.31 ft · 74°F 167 ft Hackensack-Passaic
Pompton River At Pompton Plains Nj, Nj
13 hours ago · USGS 01388500
334 cfs 8.56 ft · 72°F 171 ft Hackensack-Passaic
Raritan River At Manville Nj, Nj
14 hours ago · USGS 01400500
290 cfs 4.22 ft 80°F 72°F 43 ft Raritan
West Branch Middle Brook Near Martinsville Nj, Nj
13 hours ago · USGS 01403150
270 cfs 4.64 ft · 72°F 249 ft Raritan
Paulins Kill At Blairstown Nj, Nj
14 hours ago · USGS 01443500
269 cfs 2.16 ft 82°F 70°F 399 ft Middle Delaware-Musconetcong
Saddle River At Lodi Nj, Nj
13 hours ago · USGS 01391500
236 cfs 2.74 ft · 75°F 26 ft Hackensack-Passaic
Ramapo River At Pompton Lakes Nj, Nj
14 hours ago · USGS 01388000
218 cfs 7.64 ft 76°F 73°F 197 ft Hackensack-Passaic
Whippany River At Morristown Nj, Nj
13 hours ago · USGS 01381500
181 cfs 3.20 ft · 72°F 265 ft Hackensack-Passaic
Raritan River Below Calco Dam At Bound Brook Nj, Nj
14 hours ago · USGS 01403060
175 cfs 16.70 ft · 73°F 18 ft Raritan
Musconetcong River Near Bloomsbury Nj, Nj
14 hours ago · USGS 01457000
172 cfs 1.71 ft · 71°F 275 ft Middle Delaware-Musconetcong
Elizabeth R At Ursino Lake At Elizabeth Nj, Nj
13 hours ago · USGS 01393450
172 cfs 15.21 ft · 75°F 21 ft Sandy Hook-Staten Island
South Branch Raritan River At Stanton Nj, Nj
14 hours ago · USGS 01397000
168 cfs 2.80 ft · 72°F 163 ft Raritan
Ramapo River Near Mahwah Nj, Nj
13 hours ago · USGS 01387500
151 cfs 3.48 ft · 73°F 259 ft Hackensack-Passaic
North Branch Raritan River Near Raritan Nj, Nj
14 hours ago · USGS 01400000
145 cfs 2.84 ft · 72°F 51 ft Raritan
Whippany River Near Pine Brook Nj, Nj
14 hours ago · USGS 01381800
134 cfs 4.83 ft 76°F 73°F 170 ft Hackensack-Passaic
Rockaway River Below Reservoir At Boonton Nj, Nj
13 hours ago · USGS 01381000
133 cfs 2.62 ft · 72°F 198 ft Hackensack-Passaic
Delaware And Raritan Canal At Port Mercer Nj, Nj
13 hours ago · USGS 01460440
132 cfs 55.19 ft 79°F 72°F 52 ft Middle Delaware-Musconetcong
Second River At Belleville Nj, Nj
14 hours ago · USGS 01392500
125 cfs 2.26 ft · 75°F 85 ft Hackensack-Passaic
Pequest River At Pequest Nj, Nj
14 hours ago · USGS 01445500
107 cfs 1.76 ft 71°F 71°F 468 ft Middle Delaware-Musconetcong
Pequannock River At Riverdale Nj, Nj
13 hours ago · USGS 01382800
106 cfs 2.69 ft · 72°F 202 ft Hackensack-Passaic
Millstone River At Blackwells Mills Nj, Nj
14 hours ago · USGS 01402000
104 cfs 1.74 ft 81°F 72°F 29 ft Raritan
Pascack Brook At Westwood Nj, Nj
13 hours ago · USGS 01377500
97 cfs 2.09 ft · 75°F 24 ft Hackensack-Passaic
Hackensack River At Rivervale Nj, Nj
14 hours ago · USGS 01377000
90 cfs 1.98 ft · 75°F 36 ft Hackensack-Passaic
Passaic River Near Chatham Nj, Nj
13 hours ago · USGS 01379500
90 cfs 3.75 ft · 72°F 199 ft Hackensack-Passaic
Passaic River Near Millington Nj, Nj
13 hours ago · USGS 01379000
73 cfs 5.11 ft · 72°F 232 ft Hackensack-Passaic
Toms River Near Toms River Nj, Nj
14 hours ago · USGS 01408500
66 cfs 3.11 ft · 74°F 20 ft Mullica-Toms
Spruce Run At Clinton Nj, Nj
13 hours ago · USGS 01396800
64 cfs 1.81 ft 78°F 71°F 196 ft Raritan
Maurice River At Norma Nj, Nj
14 hours ago · USGS 01411500
59 cfs 2.47 ft 74°F 73°F 49 ft Cohansey-Maurice
Yards Creek Near Blairstown Nj, Nj
14 hours ago · USGS 01443900
59 cfs 2.84 ft · 70°F 660 ft Middle Delaware-Musconetcong
Wanaque River At Awosting Nj, Nj
14 hours ago · USGS 01383500
58 cfs 2.34 ft · 72°F 603 ft Hackensack-Passaic
Flat Brook Near Flatbrookville Nj, Nj
14 hours ago · USGS 01440000
56 cfs 2.21 ft 70°F 69°F 358 ft Middle Delaware-Mongaup-Brodhead
South Branch Raritan River Near High Bridge Nj, Nj
14 hours ago · USGS 01396500
56 cfs 5.98 ft 66°F 71°F 424 ft Raritan
Saddle River At Ridgewood Nj, Nj
14 hours ago · USGS 01390500
47 cfs 1.20 ft · 74°F 76 ft Hackensack-Passaic
West Branch Wading River Near Jenkins Nj, Nj
14 hours ago · USGS 01409810
46 cfs 10.39 ft · 73°F 22 ft Mullica-Toms
Musconetcong River At Outlet Of Lake Hopatcong Nj, Nj
13 hours ago · USGS 01455500
43 cfs 1.90 ft · 70°F 923 ft Middle Delaware-Musconetcong
North Branch Rancocas Creek At Pemberton Nj, Nj
13 hours ago · USGS 01467000
42 cfs 1.50 ft 77°F 73°F 33 ft Lower Delaware
Lamington (Black) River Near Pottersville Nj, Nj
14 hours ago · USGS 01399500
38 cfs 1.82 ft · 71°F 422 ft Raritan
Oswego River At Harrisville Nj, Nj
13 hours ago · USGS 01410000
36 cfs 10.30 ft · 73°F 6 ft Mullica-Toms
Pequest River At Huntsville Nj, Nj
14 hours ago · USGS 01445000
36 cfs 2.76 ft · 71°F 566 ft Middle Delaware-Musconetcong
Hohokus Brook At Ho-Ho-Kus Nj, Nj
13 hours ago · USGS 01391000
35 cfs 1.54 ft · 74°F 125 ft Hackensack-Passaic
Manasquan R Nr Allenwood Nj, Nj
14 hours ago · USGS 01408029
32 cfs 7.64 ft 72°F 74°F 51 ft Mullica-Toms
Beaver Brook Near Belvidere Nj, Nj
14 hours ago · USGS 01446000
32 cfs 1.85 ft · 71°F 358 ft Middle Delaware-Musconetcong
North Branch Raritan River Near Far Hills Nj, Nj
14 hours ago · USGS 01398500
31 cfs 2.34 ft · 72°F 208 ft Raritan
Hackensack River At New Milford Nj, Nj
14 hours ago · USGS 01378500
30 cfs 1.64 ft · 75°F 6 ft Hackensack-Passaic
Rahway River At Rahway Nj, Nj
13 hours ago · USGS 01395000
30 cfs 1.60 ft · 75°F 15 ft Sandy Hook-Staten Island
Wanaque R At Wanaque Nj, Nj
14 hours ago · USGS 01387000
29 cfs 1.52 ft · 73°F 221 ft Hackensack-Passaic
Whippany River Near Morristown Nj, Nj
14 hours ago · USGS 01381400
27 cfs 3.01 ft · 71°F 314 ft Hackensack-Passaic
Assunpink Creek At Trenton Nj, Nj
14 hours ago · USGS 01464000
27 cfs 2.46 ft · 73°F 25 ft Middle Delaware-Musconetcong
North Branch Metedeconk River Near Lakewood Nj, Nj
14 hours ago · USGS 01408120
27 cfs 2.75 ft · 74°F 19 ft Mullica-Toms
Pascack Brook At Park Ridge Nj, Nj
13 hours ago · USGS 01377370
27 cfs 2.93 ft · 74°F 118 ft Hackensack-Passaic
West Brook Near Wanaque Nj, Nj
14 hours ago · USGS 01386000
26 cfs · · 73°F 318 ft Hackensack-Passaic
Great Egg Harbor River At Folsom Nj, Nj
14 hours ago · USGS 01411000
26 cfs 3.52 ft · 73°F 109 ft Great Egg Harbor
Manasquan River At Squankum Nj, Nj
13 hours ago · USGS 01408000
26 cfs 2.51 ft 65°F 74°F 36 ft Mullica-Toms
Manalapan Brook At Spotswood Nj, Nj
14 hours ago · USGS 01405400
24 cfs 9.93 ft · 73°F 17 ft Raritan
Crosswicks Creek At Extonville Nj, Nj
14 hours ago · USGS 01464500
23 cfs 2.32 ft 77°F 73°F 30 ft Crosswicks-Neshaminy
Rahway River Near Springfield Nj, Nj
13 hours ago · USGS 01394500
22 cfs 1.47 ft · 74°F 67 ft Sandy Hook-Staten Island
Lawrence Bk At Westons Mills Nj, Nj
13 hours ago · USGS 01405030
22 cfs 15.82 ft · 73°F 2 ft Raritan
Bound Bk At Middlesex Nj, Nj
14 hours ago · USGS 01403900
22 cfs 1.63 ft · 72°F 28 ft Raritan
Ringwood Creek Near Wanaque Nj, Nj
14 hours ago · USGS 01384500
20 cfs 10.56 ft · 72°F 302 ft Hackensack-Passaic
Cohansey River At Seeley Nj, Nj
14 hours ago · USGS 01412800
20 cfs 2.90 ft 70°F 74°F 30 ft Cohansey-Maurice
Great Egg Harbor R Nr Blue Anchor Nj, Nj
14 hours ago · USGS 01410820
19 cfs 2.14 ft · 73°F 92 ft Great Egg Harbor
Pequannock R At Macopin Intake Dam Nj, Nj
13 hours ago · USGS 01382500
19 cfs 2.35 ft · 71°F 574 ft Hackensack-Passaic
Mullica River Near Batsto Nj, Nj
14 hours ago · USGS 01409400
17 cfs · · 74°F 13 ft Mullica-Toms
Greenwood Branch At New Lisbon Nj, Nj
13 hours ago · USGS 01466900
17 cfs 1.77 ft 74°F 73°F 38 ft Lower Delaware
Saddle River At Upper Saddle River Nj, Nj
14 hours ago · USGS 01390450
16 cfs 2.14 ft · 73°F 190 ft Hackensack-Passaic
Eb Paulins Kill Near Lafayette Nj, Nj
13 hours ago · USGS 01443280
15 cfs 2.27 ft · 70°F 567 ft Middle Delaware-Musconetcong
Westecunk Creek At Stafford Forge Nj, Nj
14 hours ago · USGS 01409280
15 cfs 10.75 ft 80°F 73°F 67 ft Mullica-Toms
Raccoon Creek Near Swedesboro Nj, Nj
14 hours ago · USGS 01477120
13 cfs 8.57 ft 75°F 73°F 11 ft Lower Delaware
Jumping Brook Near Neptune City Nj, Nj
14 hours ago · USGS 01407760
12 cfs 1.78 ft · 74°F 42 ft Sandy Hook-Staten Island
Green Pd Bk Bl Picatinny Lk At Picatinny Ars Nj, Nj
13 hours ago · USGS 01379780
12 cfs 2.53 ft · 70°F 697 ft Hackensack-Passaic
Great Egg Harbor R Nr Sicklerville Nj, Nj
14 hours ago · USGS 01410784
10 cfs 4.04 ft · 73°F 116 ft Great Egg Harbor
Green Pond Brook At Picatinny Arsenal Nj, Nj
13 hours ago · USGS 01379773
9 cfs 1.61 ft · 70°F 717 ft Hackensack-Passaic
Big Brook Near Marlboro Nj, Nj
13 hours ago · USGS 01407290
9 cfs 9.67 ft · 73°F 65 ft Sandy Hook-Staten Island
Stony Brook At Princeton Nj, Nj
13 hours ago · USGS 01401000
8 cfs 1.47 ft 68°F 72°F 61 ft Raritan
South Branch Rancocas Creek At Vincentown Nj, Nj
14 hours ago · USGS 01465850
8 cfs · 68°F 73°F 17 ft Lower Delaware
Neshanic River At Reaville Nj, Nj
14 hours ago · USGS 01398000
7 cfs 2.52 ft · 72°F 118 ft Raritan
Cooper River At Haddonfield Nj, Nj
14 hours ago · USGS 01467150
7 cfs 1.35 ft 81°F 73°F 10 ft Lower Delaware
Canoe Brook Near Summit Nj, Nj
13 hours ago · USGS 01379530
6 cfs 11.48 ft 79°F 74°F 172 ft Hackensack-Passaic
Sb Rockaway Creek At Whitehouse Station Nj, Nj
14 hours ago · USGS 01399670
6 cfs 1.84 ft · 72°F 169 ft Raritan
South Branch Pennsauken Creek At Cherry Hill Nj, Nj
14 hours ago · USGS 01467081
5 cfs 2.00 ft 76°F 73°F 18 ft Lower Delaware
East Branch Bass River Near New Gretna Nj, Nj
13 hours ago · USGS 01410150
5 cfs 3.44 ft · 73°F 6 ft Mullica-Toms
Shark River Near Neptune City Nj, Nj
13 hours ago · USGS 01407705
5 cfs 1.41 ft · 74°F 37 ft Sandy Hook-Staten Island
Mulhockaway Creek At Van Syckel Nj, Nj
14 hours ago · USGS 01396660
5 cfs · · 71°F 287 ft Raritan
Salem River At Woodstown Nj, Nj
14 hours ago · USGS 01482500
4 cfs 11.08 ft · 73°F 28 ft Cohansey-Maurice
Assunpink Creek Near Clarksville Nj, Nj
14 hours ago · USGS 01463620
4 cfs 3.49 ft · 72°F 51 ft Middle Delaware-Musconetcong
Green Brook At Seeley Mills Nj, Nj
14 hours ago · USGS 01403400
3 cfs 2.02 ft · 74°F 218 ft Raritan
Deep Run At Old Bridge Nj, Nj
14 hours ago · USGS 01406050
3 cfs 6.70 ft · 73°F 5 ft Raritan
Tuckahoe River At Head Of River Nj, Nj
14 hours ago · USGS 01411300
3 cfs 3.85 ft · 74°F 8 ft Great Egg Harbor
Pike Run At Belle Mead Nj, Nj
14 hours ago · USGS 01401650
1 cfs 2.95 ft · 72°F 62 ft Raritan
Stony Brook At Watchung Nj, Nj
13 hours ago · USGS 01403540
1 cfs 9.48 ft · 73°F 181 ft Raritan
Mcdonalds Branch In Lebanon State Forest Nj, Nj
14 hours ago · USGS 01466500
1 cfs · 73°F 73°F 115 ft Lower Delaware
Swimming River Near Red Bank Nj, Nj
14 hours ago · USGS 01407500
0 cfs 2.14 ft · 74°F 33 ft Sandy Hook-Staten Island
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Flow report FAQ

About New Jersey streamflow

What are river levels like in New Jersey right now?

As of August 3, 2026, New Jersey rivers are running at 163% of normal across 96 USGS streamgauges, and the Delaware River At Trenton Nj is reporting the highest discharge at 11,400 cfs. The full sortable gauge table is below.

Which New Jersey river is running highest right now?

As of August 3, 2026, the highest discharge in New Jersey is 11,400 cfs on the Delaware River At Trenton Nj. See the sortable gauge table for the full statewide ranking.

Are New Jersey rivers high or low right now?

Compare the statewide percent-of-normal on this page: above 100% means New Jersey rivers are running higher than the seasonal average for the date, below 100% means lower (a dry spell or drought). Each gauge also shows its own percent of median.

Where does the New Jersey streamflow data come from?

The U.S. Geological Survey National Water Information System. USGS streamgauges report continuously (every 15 minutes) and the data is the canonical real-time record for U.S. rivers. Snoflo pulls the latest readings and joins them to a 7-day NOAA weather forecast for each station.

What is cfs?

Cubic feet per second — the standard unit for streamflow. One cfs is about 7.5 gallons per second. Small creeks run at single-digit cfs; the Mississippi at hundreds of thousands.

What does Gauge Height mean?

The water level at the gauge in feet above the reference datum. Used together with discharge to track river state. Flood stage and runnable levels are typically expressed in gauge height (e.g., "flood at 16 ft").

How fresh is the New Jersey data?

USGS streamgauges report every 15 minutes; Snoflo re-pulls throughout the day. The AI briefing regenerates daily.

Can I get a flow alert for a New Jersey gauge?

Yes. Save any USGS gauge as a favorite in the Snoflo iOS app, set a discharge or stage threshold (e.g. "alert me when discharge crosses 2,000 cfs"), and you'll get a push the moment it crosses.

Is this a substitute for an NWS flood warning?

No. Snoflo is informational. For flood life-safety decisions always follow guidance from your local NWS forecast office and state emergency management. Snoflo data is one input among several.