Flow report
New Jersey streamflow
Live discharge, gauge height, water temperature, and percent-of-normal readings from every USGS streamgauge in New Jersey. Built for paddlers, anglers, water managers, and flood researchers.
USGS gauges
96
State percent normal
66%
Paddle runs
0
Updated
Jul 17
Open the New Jersey flow layer on the map
Every USGS streamgauge filtered to New Jersey.
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July
17
2026
Flow briefing
Streamflow levels across New Jersey are currently 66% of normal, with the Delaware River At Trenton Nj reporting the highest discharge in the state at 4,930 cfs and a gauge stage of 8.57 ft.
Meanwhile, the North Branch Raritan River Near Raritan Nj is seeing a spike today — up 23% 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.
River levels near New Jersey towns
Active weather warnings for New Jersey
# NEW JERSEY STORM CENTER REPORT
New Jersey is currently under widespread air quality alerts affecting nearly all counties statewide through midnight Saturday. Code Red air quality alerts have been issued for Bergen, Passaic, Hudson, Essex, Union, Sussex, Warren, Monmouth, Atlantic, Cape May, Middlesex, Mercer, Salem, Cumberland, Ocean, and portions of Burlington counties, with an additional Air Quality Action Day in effect for northern counties. Major population centers including Newark, Jersey City, Paterson, Trenton, and Atlantic City are all impacted. Residents should minimize outdoor strenuous activity and exercise, as air pollution concentrations are unhealthy for the general population. Vulnerable populations, including children, elderly, and those with respiratory conditions, should take extra precautions. For real-time updates, visit the New Jersey Department of Environmental Protection website at https://dep.nj.gov/airmon.
New Jersey is currently under widespread air quality alerts affecting nearly all counties statewide through midnight Saturday. Code Red air quality alerts have been issued for Bergen, Passaic, Hudson, Essex, Union, Sussex, Warren, Monmouth, Atlantic, Cape May, Middlesex, Mercer, Salem, Cumberland, Ocean, and portions of Burlington counties, with an additional Air Quality Action Day in effect for northern counties. Major population centers including Newark, Jersey City, Paterson, Trenton, and Atlantic City are all impacted. Residents should minimize outdoor strenuous activity and exercise, as air pollution concentrations are unhealthy for the general population. Vulnerable populations, including children, elderly, and those with respiratory conditions, should take extra precautions. For real-time updates, visit the New Jersey Department of Environmental Protection website at https://dep.nj.gov/airmon.
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
66%
100% is the historical norm. Below 70% indicates drought; above 130% can flag elevated flood risk.
Highest discharge
Delaware River At Trenton Nj
4,930 cfs
Gauge stage 8.57 ft
Biggest 24h spike
North Branch Raritan River Near Raritan Nj
+23%
Now 209 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.
| Streamgage | Streamflow | Gage height | Water temp | Air temp | Elevation | Watershed |
|---|---|---|---|---|---|---|
|
Delaware River At Trenton Nj, Nj
8 hours ago · USGS 01463500 |
4,810 cfs | 8.54 ft | 82°F | 89°F | 7 ft | Middle Delaware-Musconetcong |
|
Delaware River At Belvidere Nj, Nj
8 hours ago · USGS 01446500 |
3,290 cfs | 4.06 ft | 49°F | 85°F | 232 ft | Middle Delaware-Musconetcong |
|
Delaware River At Montague Nj, Nj
7 hours ago · USGS 01438500 |
3,060 cfs | 5.64 ft | 76°F | 85°F | 374 ft | Middle Delaware-Mongaup-Brodhead |
|
Raritan River At Manville Nj, Nj
8 hours ago · USGS 01400500 |
290 cfs | 4.22 ft | 80°F | 87°F | 43 ft | Raritan |
|
Passaic River At Little Falls Nj, Nj
8 hours ago · USGS 01389500 |
226 cfs | · | · | 88°F | 131 ft | Hackensack-Passaic |
|
North Branch Raritan River Near Raritan Nj, Nj
8 hours ago · USGS 01400000 |
209 cfs | 2.98 ft | · | 87°F | 51 ft | Raritan |
|
Raritan River Below Calco Dam At Bound Brook Nj, Nj
8 hours ago · USGS 01403060 |
181 cfs | 16.72 ft | · | 87°F | 18 ft | Raritan |
|
Passaic River At Pine Brook Nj, Nj
8 hours ago · USGS 01381900 |
161 cfs | 12.17 ft | · | 87°F | 167 ft | Hackensack-Passaic |
|
Delaware And Raritan Canal At Port Mercer Nj, Nj
8 hours ago · USGS 01460440 |
132 cfs | 55.19 ft | 82°F | 88°F | 52 ft | Middle Delaware-Musconetcong |
|
Pompton River At Pompton Plains Nj, Nj
8 hours ago · USGS 01388500 |
126 cfs | 7.70 ft | · | 86°F | 171 ft | Hackensack-Passaic |
|
Sb Rockaway Creek At Whitehouse Station Nj, Nj
8 hours ago · USGS 01399670 |
121 cfs | 3.10 ft | · | 87°F | 169 ft | Raritan |
|
Millstone River At Blackwells Mills Nj, Nj
8 hours ago · USGS 01402000 |
112 cfs | 1.77 ft | 81°F | 87°F | 29 ft | Raritan |
|
South Branch Raritan River At Stanton Nj, Nj
8 hours ago · USGS 01397000 |
111 cfs | 2.57 ft | · | 87°F | 163 ft | Raritan |
|
Maurice River At Norma Nj, Nj
8 hours ago · USGS 01411500 |
77 cfs | 2.57 ft | 74°F | 89°F | 49 ft | Cohansey-Maurice |
|
Toms River Near Toms River Nj, Nj
8 hours ago · USGS 01408500 |
75 cfs | 3.06 ft | · | 87°F | 20 ft | Mullica-Toms |
|
Musconetcong River Near Bloomsbury Nj, Nj
8 hours ago · USGS 01457000 |
67 cfs | 1.30 ft | · | 85°F | 275 ft | Middle Delaware-Musconetcong |
|
Ramapo River At Pompton Lakes Nj, Nj
8 hours ago · USGS 01388000 |
62 cfs | 6.93 ft | 80°F | 86°F | 197 ft | Hackensack-Passaic |
|
Pascack Brook At Westwood Nj, Nj
8 hours ago · USGS 01377500 |
55 cfs | 1.79 ft | · | 88°F | 24 ft | Hackensack-Passaic |
|
North Branch Rancocas Creek At Pemberton Nj, Nj
8 hours ago · USGS 01467000 |
48 cfs | 1.52 ft | 78°F | 89°F | 33 ft | Lower Delaware |
|
Paulins Kill At Blairstown Nj, Nj
8 hours ago · USGS 01443500 |
47 cfs | 1.49 ft | 82°F | 85°F | 399 ft | Middle Delaware-Musconetcong |
|
Whippany River Near Pine Brook Nj, Nj
8 hours ago · USGS 01381800 |
42 cfs | 2.74 ft | 77°F | 87°F | 170 ft | Hackensack-Passaic |
|
Pequest River At Pequest Nj, Nj
8 hours ago · USGS 01445500 |
38 cfs | 1.35 ft | 67°F | 85°F | 468 ft | Middle Delaware-Musconetcong |
|
Spruce Run At Clinton Nj, Nj
8 hours ago · USGS 01396800 |
38 cfs | 1.68 ft | 78°F | 86°F | 196 ft | Raritan |
|
Ramapo River Near Mahwah Nj, Nj
8 hours ago · USGS 01387500 |
37 cfs | 2.47 ft | · | 85°F | 259 ft | Hackensack-Passaic |
|
Great Egg Harbor River At Folsom Nj, Nj
8 hours ago · USGS 01411000 |
35 cfs | 3.60 ft | · | 89°F | 109 ft | Great Egg Harbor |
|
Assunpink Creek At Trenton Nj, Nj
8 hours ago · USGS 01464000 |
34 cfs | 2.54 ft | · | 89°F | 25 ft | Middle Delaware-Musconetcong |
|
Hackensack River At Rivervale Nj, Nj
8 hours ago · USGS 01377000 |
33 cfs | 1.68 ft | · | 87°F | 36 ft | Hackensack-Passaic |
|
West Branch Wading River Near Jenkins Nj, Nj
8 hours ago · USGS 01409810 |
32 cfs | 10.18 ft | · | 88°F | 22 ft | Mullica-Toms |
|
South Branch Raritan River Near High Bridge Nj, Nj
7 hours ago · USGS 01396500 |
31 cfs | 5.79 ft | 66°F | 85°F | 424 ft | Raritan |
|
Saddle River At Lodi Nj, Nj
8 hours ago · USGS 01391500 |
29 cfs | 1.84 ft | · | 89°F | 26 ft | Hackensack-Passaic |
|
Oswego River At Harrisville Nj, Nj
8 hours ago · USGS 01410000 |
26 cfs | 10.25 ft | · | 88°F | 6 ft | Mullica-Toms |
|
Great Egg Harbor R Nr Blue Anchor Nj, Nj
8 hours ago · USGS 01410820 |
25 cfs | 2.38 ft | · | 90°F | 92 ft | Great Egg Harbor |
|
Passaic River Near Chatham Nj, Nj
8 hours ago · USGS 01379500 |
24 cfs | 3.27 ft | · | 87°F | 199 ft | Hackensack-Passaic |
|
Bound Bk At Middlesex Nj, Nj
8 hours ago · USGS 01403900 |
23 cfs | 1.64 ft | · | 85°F | 28 ft | Raritan |
|
Mullica River Near Batsto Nj, Nj
8 hours ago · USGS 01409400 |
23 cfs | · | · | 89°F | 13 ft | Mullica-Toms |
|
Manasquan River At Squankum Nj, Nj
8 hours ago · USGS 01408000 |
22 cfs | 2.47 ft | 65°F | 86°F | 36 ft | Mullica-Toms |
|
Greenwood Branch At New Lisbon Nj, Nj
8 hours ago · USGS 01466900 |
21 cfs | 1.82 ft | 75°F | 89°F | 38 ft | Lower Delaware |
|
Wanaque River At Awosting Nj, Nj
8 hours ago · USGS 01383500 |
21 cfs | 1.96 ft | · | 84°F | 603 ft | Hackensack-Passaic |
|
Flat Brook Near Flatbrookville Nj, Nj
8 hours ago · USGS 01440000 |
21 cfs | 1.95 ft | 70°F | 83°F | 358 ft | Middle Delaware-Mongaup-Brodhead |
|
Westecunk Creek At Stafford Forge Nj, Nj
8 hours ago · USGS 01409280 |
19 cfs | 10.82 ft | 80°F | 85°F | 67 ft | Mullica-Toms |
|
Whippany River At Morristown Nj, Nj
7 hours ago · USGS 01381500 |
19 cfs | 1.96 ft | · | 86°F | 265 ft | Hackensack-Passaic |
|
Lamington (Black) River Near Pottersville Nj, Nj
8 hours ago · USGS 01399500 |
19 cfs | 1.62 ft | · | 85°F | 422 ft | Raritan |
|
Hohokus Brook At Ho-Ho-Kus Nj, Nj
8 hours ago · USGS 01391000 |
18 cfs | 1.37 ft | · | 87°F | 125 ft | Hackensack-Passaic |
|
North Branch Metedeconk River Near Lakewood Nj, Nj
8 hours ago · USGS 01408120 |
18 cfs | 2.41 ft | · | 85°F | 19 ft | Mullica-Toms |
|
Lawrence Bk At Westons Mills Nj, Nj
8 hours ago · USGS 01405030 |
18 cfs | 15.80 ft | · | 88°F | 2 ft | Raritan |
|
Wanaque R At Wanaque Nj, Nj
8 hours ago · USGS 01387000 |
18 cfs | 1.37 ft | · | 86°F | 221 ft | Hackensack-Passaic |
|
Pequannock River At Riverdale Nj, Nj
8 hours ago · USGS 01382800 |
16 cfs | 1.85 ft | · | 86°F | 202 ft | Hackensack-Passaic |
|
Raccoon Creek Near Swedesboro Nj, Nj
8 hours ago · USGS 01477120 |
16 cfs | 8.53 ft | 77°F | 89°F | 11 ft | Lower Delaware |
|
Cohansey River At Seeley Nj, Nj
8 hours ago · USGS 01412800 |
13 cfs | 2.69 ft | 70°F | 89°F | 30 ft | Cohansey-Maurice |
|
Manalapan Brook At Spotswood Nj, Nj
8 hours ago · USGS 01405400 |
13 cfs | 9.77 ft | · | 87°F | 17 ft | Raritan |
|
Assunpink Creek Near Clarksville Nj, Nj
8 hours ago · USGS 01463620 |
13 cfs | 3.72 ft | · | 88°F | 51 ft | Middle Delaware-Musconetcong |
|
Eb Paulins Kill Near Lafayette Nj, Nj
8 hours ago · USGS 01443280 |
13 cfs | 2.20 ft | · | 83°F | 567 ft | Middle Delaware-Musconetcong |
|
Rahway River At Rahway Nj, Nj
8 hours ago · USGS 01395000 |
11 cfs | 1.41 ft | · | 88°F | 15 ft | Sandy Hook-Staten Island |
|
Hackensack River At New Milford Nj, Nj
8 hours ago · USGS 01378500 |
11 cfs | 1.51 ft | · | 88°F | 6 ft | Hackensack-Passaic |
|
Manasquan R Nr Allenwood Nj, Nj
8 hours ago · USGS 01408029 |
11 cfs | 7.26 ft | 73°F | 85°F | 51 ft | Mullica-Toms |
|
Elizabeth R At Ursino Lake At Elizabeth Nj, Nj
8 hours ago · USGS 01393450 |
11 cfs | 13.32 ft | · | 88°F | 21 ft | Sandy Hook-Staten Island |
|
Rockaway River Below Reservoir At Boonton Nj, Nj
8 hours ago · USGS 01381000 |
10 cfs | 1.61 ft | · | 86°F | 198 ft | Hackensack-Passaic |
|
South Branch Rancocas Creek At Vincentown Nj, Nj
8 hours ago · USGS 01465850 |
10 cfs | · | 68°F | 90°F | 17 ft | Lower Delaware |
|
Musconetcong River At Outlet Of Lake Hopatcong Nj, Nj
7 hours ago · USGS 01455500 |
10 cfs | 1.22 ft | · | 83°F | 923 ft | Middle Delaware-Musconetcong |
|
Pequannock R At Macopin Intake Dam Nj, Nj
7 hours ago · USGS 01382500 |
9 cfs | 2.12 ft | · | 83°F | 574 ft | Hackensack-Passaic |
|
Great Egg Harbor R Nr Sicklerville Nj, Nj
8 hours ago · USGS 01410784 |
9 cfs | 4.02 ft | · | 90°F | 116 ft | Great Egg Harbor |
|
Second River At Belleville Nj, Nj
8 hours ago · USGS 01392500 |
8 cfs | 1.37 ft | · | 89°F | 85 ft | Hackensack-Passaic |
|
Saddle River At Ridgewood Nj, Nj
8 hours ago · USGS 01390500 |
8 cfs | · | · | 87°F | 76 ft | Hackensack-Passaic |
|
Crosswicks Creek At Extonville Nj, Nj
8 hours ago · USGS 01464500 |
8 cfs | 2.33 ft | 77°F | 88°F | 30 ft | Crosswicks-Neshaminy |
|
Ringwood Creek Near Wanaque Nj, Nj
8 hours ago · USGS 01384500 |
8 cfs | 10.37 ft | · | 85°F | 302 ft | Hackensack-Passaic |
|
Pequest River At Huntsville Nj, Nj
8 hours ago · USGS 01445000 |
8 cfs | 2.44 ft | · | 84°F | 566 ft | Middle Delaware-Musconetcong |
|
Rahway River Near Springfield Nj, Nj
8 hours ago · USGS 01394500 |
8 cfs | 1.26 ft | · | 88°F | 67 ft | Sandy Hook-Staten Island |
|
Neshanic River At Reaville Nj, Nj
8 hours ago · USGS 01398000 |
7 cfs | 2.53 ft | · | 87°F | 118 ft | Raritan |
|
Passaic River Near Millington Nj, Nj
8 hours ago · USGS 01379000 |
7 cfs | 4.35 ft | · | 86°F | 232 ft | Hackensack-Passaic |
|
Pascack Brook At Park Ridge Nj, Nj
8 hours ago · USGS 01377370 |
7 cfs | 2.77 ft | · | 87°F | 118 ft | Hackensack-Passaic |
|
Cooper River At Haddonfield Nj, Nj
8 hours ago · USGS 01467150 |
7 cfs | 1.34 ft | 81°F | 90°F | 10 ft | Lower Delaware |
|
Whippany River Near Morristown Nj, Nj
8 hours ago · USGS 01381400 |
6 cfs | 2.07 ft | · | 86°F | 314 ft | Hackensack-Passaic |
|
East Branch Bass River Near New Gretna Nj, Nj
8 hours ago · USGS 01410150 |
6 cfs | 3.45 ft | · | 87°F | 6 ft | Mullica-Toms |
|
Stony Brook At Princeton Nj, Nj
8 hours ago · USGS 01401000 |
6 cfs | 1.43 ft | 68°F | 87°F | 61 ft | Raritan |
|
Tuckahoe River At Head Of River Nj, Nj
8 hours ago · USGS 01411300 |
6 cfs | 3.87 ft | · | 88°F | 8 ft | Great Egg Harbor |
|
Beaver Brook Near Belvidere Nj, Nj
8 hours ago · USGS 01446000 |
6 cfs | 1.37 ft | · | 85°F | 358 ft | Middle Delaware-Musconetcong |
|
Salem River At Woodstown Nj, Nj
8 hours ago · USGS 01482500 |
4 cfs | 11.08 ft | · | 89°F | 28 ft | Cohansey-Maurice |
|
North Branch Raritan River Near Far Hills Nj, Nj
8 hours ago · USGS 01398500 |
4 cfs | 1.95 ft | · | 86°F | 208 ft | Raritan |
|
Mulhockaway Creek At Van Syckel Nj, Nj
8 hours ago · USGS 01396660 |
4 cfs | · | · | 86°F | 287 ft | Raritan |
|
West Brook Near Wanaque Nj, Nj
8 hours ago · USGS 01386000 |
3 cfs | · | · | 85°F | 318 ft | Hackensack-Passaic |
|
Big Brook Near Marlboro Nj, Nj
8 hours ago · USGS 01407290 |
3 cfs | 9.50 ft | · | 86°F | 65 ft | Sandy Hook-Staten Island |
|
South Branch Pennsauken Creek At Cherry Hill Nj, Nj
8 hours ago · USGS 01467081 |
3 cfs | 1.88 ft | 76°F | 90°F | 18 ft | Lower Delaware |
|
Saddle River At Upper Saddle River Nj, Nj
8 hours ago · USGS 01390450 |
3 cfs | 1.60 ft | · | 86°F | 190 ft | Hackensack-Passaic |
|
Shark River Near Neptune City Nj, Nj
8 hours ago · USGS 01407705 |
3 cfs | 1.33 ft | · | 85°F | 37 ft | Sandy Hook-Staten Island |
|
Canoe Brook Near Summit Nj, Nj
8 hours ago · USGS 01379530 |
3 cfs | 11.27 ft | 78°F | 87°F | 172 ft | Hackensack-Passaic |
|
Green Pd Bk Bl Picatinny Lk At Picatinny Ars Nj, Nj
8 hours ago · USGS 01379780 |
2 cfs | 2.31 ft | · | 83°F | 697 ft | Hackensack-Passaic |
|
Jumping Brook Near Neptune City Nj, Nj
8 hours ago · USGS 01407760 |
2 cfs | 1.41 ft | · | 84°F | 42 ft | Sandy Hook-Staten Island |
|
Stony Brook At Watchung Nj, Nj
8 hours ago · USGS 01403540 |
2 cfs | 9.55 ft | · | 87°F | 181 ft | Raritan |
|
Deep Run At Old Bridge Nj, Nj
8 hours ago · USGS 01406050 |
2 cfs | 6.68 ft | · | 88°F | 5 ft | Raritan |
|
Green Pond Brook At Picatinny Arsenal Nj, Nj
8 hours ago · USGS 01379773 |
1 cfs | 1.31 ft | · | 83°F | 717 ft | Hackensack-Passaic |
|
Yards Creek Near Blairstown Nj, Nj
8 hours ago · USGS 01443900 |
1 cfs | 1.84 ft | · | 83°F | 660 ft | Middle Delaware-Musconetcong |
|
Mcdonalds Branch In Lebanon State Forest Nj, Nj
8 hours ago · USGS 01466500 |
1 cfs | 1.06 ft | 63°F | 88°F | 115 ft | Lower Delaware |
|
Green Brook At Seeley Mills Nj, Nj
7 hours ago · USGS 01403400 |
1 cfs | 1.79 ft | · | 87°F | 218 ft | Raritan |
|
Pike Run At Belle Mead Nj, Nj
8 hours ago · USGS 01401650 |
1 cfs | 2.90 ft | · | 87°F | 62 ft | Raritan |
|
West Branch Middle Brook Near Martinsville Nj, Nj
7 hours ago · USGS 01403150 |
0 cfs | 1.95 ft | · | 86°F | 249 ft | Raritan |
|
Swimming River Near Red Bank Nj, Nj
8 hours ago · USGS 01407500 |
0 cfs | 2.57 ft | · | 86°F | 33 ft | Sandy Hook-Staten Island |
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Flow report FAQ
About New Jersey streamflow
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.
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