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Hydrograph River at a Glance Download
North Branch Raritan River near Raritan Stage (ft)Flow (kcfs)Highest Observation: 3.97 ft at 1:15PM Jan 16, 2021Observed: 3.95 ft at 1:30PM Jan 16, 2021Observed: 3.93 ft at 1:45PM Jan 16, 2021Observed: 3.91 ft at 2:00PM Jan 16, 2021Observed: 3.89 ft at 2:15PM Jan 16, 2021Observed: 3.87 ft at 2:30PM Jan 16, 2021Observed: 3.85 ft at 2:45PM Jan 16, 2021Observed: 3.83 ft at 3:00PM Jan 16, 2021Observed: 3.81 ft at 3:15PM Jan 16, 2021Observed: 3.79 ft at 3:30PM Jan 16, 2021Observed: 3.77 ft at 3:45PM Jan 16, 2021Observed: 3.75 ft at 4:00PM Jan 16, 2021Observed: 3.74 ft at 4:15PM Jan 16, 2021Observed: 3.72 ft at 4:30PM Jan 16, 2021Observed: 3.7 ft at 4:45PM Jan 16, 2021Observed: 3.68 ft at 5:00PM Jan 16, 2021Observed: 3.67 ft at 5:15PM Jan 16, 2021Observed: 3.65 ft at 5:30PM Jan 16, 2021Observed: 3.64 ft at 5:45PM Jan 16, 2021Observed: 3.62 ft at 6:00PM Jan 16, 2021Observed: 3.61 ft at 6:15PM Jan 16, 2021Observed: 3.6 ft at 6:30PM Jan 16, 2021Observed: 3.58 ft at 6:45PM Jan 16, 2021Observed: 3.57 ft at 7:00PM Jan 16, 2021Observed: 3.56 ft at 7:15PM Jan 16, 2021Observed: 3.55 ft at 7:30PM Jan 16, 2021Observed: 3.54 ft at 7:45PM Jan 16, 2021Observed: 3.53 ft at 8:00PM Jan 16, 2021Observed: 3.52 ft at 8:15PM Jan 16, 2021Observed: 3.51 ft at 8:30PM Jan 16, 2021Observed: 3.5 ft at 8:45PM Jan 16, 2021Observed: 3.49 ft at 9:00PM Jan 16, 2021Observed: 3.48 ft at 9:15PM Jan 16, 2021Observed: 3.47 ft at 9:30PM Jan 16, 2021Observed: 3.46 ft at 9:45PM Jan 16, 2021Observed: 3.46 ft at 10:00PM Jan 16, 2021Observed: 3.45 ft at 10:15PM Jan 16, 2021Observed: 3.44 ft at 10:30PM Jan 16, 2021Observed: 3.43 ft at 10:45PM Jan 16, 2021Observed: 3.42 ft at 11:00PM Jan 16, 2021Observed: 3.42 ft at 11:15PM Jan 16, 2021Observed: 3.41 ft at 11:30PM Jan 16, 2021Observed: 3.4 ft at 11:45PM Jan 16, 2021Observed: 3.4 ft at 12:00AM Jan 17, 2021Observed: 3.39 ft at 12:15AM Jan 17, 2021Observed: 3.38 ft at 12:30AM Jan 17, 2021Observed: 3.38 ft at 12:45AM Jan 17, 2021Observed: 3.37 ft at 1:00AM Jan 17, 2021Observed: 3.37 ft at 1:15AM Jan 17, 2021Observed: 3.36 ft at 1:30AM Jan 17, 2021Observed: 3.36 ft at 1:45AM Jan 17, 2021Observed: 3.35 ft at 2:00AM Jan 17, 2021Observed: 3.35 ft at 2:15AM Jan 17, 2021Observed: 3.34 ft at 2:30AM Jan 17, 2021Observed: 3.34 ft at 2:45AM Jan 17, 2021Observed: 3.33 ft at 3:00AM Jan 17, 2021Observed: 3.33 ft at 3:15AM Jan 17, 2021Observed: 3.32 ft at 3:30AM Jan 17, 2021Observed: 3.32 ft at 3:45AM Jan 17, 2021Observed: 3.32 ft at 4:00AM Jan 17, 2021Observed: 3.31 ft at 4:15AM Jan 17, 2021Observed: 3.31 ft at 4:30AM Jan 17, 2021Observed: 3.3 ft at 4:45AM Jan 17, 2021Observed: 3.3 ft at 5:00AM Jan 17, 2021Observed: 3.3 ft at 5:15AM Jan 17, 2021Observed: 3.29 ft at 5:30AM Jan 17, 2021Observed: 3.29 ft at 5:45AM Jan 17, 2021Observed: 3.28 ft at 6:00AM Jan 17, 2021Observed: 3.28 ft at 6:15AM Jan 17, 2021Observed: 3.28 ft at 6:30AM Jan 17, 2021Observed: 3.27 ft at 6:45AM Jan 17, 2021Observed: 3.27 ft at 7:00AM Jan 17, 2021Observed: 3.26 ft at 7:15AM Jan 17, 2021Observed: 3.26 ft at 7:30AM Jan 17, 2021Observed: 3.26 ft at 7:45AM Jan 17, 2021Observed: 3.26 ft at 8:00AM Jan 17, 2021Observed: 3.25 ft at 8:15AM Jan 17, 2021Observed: 3.25 ft at 8:30AM Jan 17, 2021Observed: 3.25 ft at 8:45AM Jan 17, 2021Observed: 3.24 ft at 9:00AM Jan 17, 2021Observed: 3.24 ft at 9:15AM Jan 17, 2021Observed: 3.24 ft at 9:30AM Jan 17, 2021Observed: 3.24 ft at 9:45AM Jan 17, 2021Observed: 3.23 ft at 10:00AM Jan 17, 2021Observed: 3.23 ft at 10:15AM Jan 17, 2021Observed: 3.23 ft at 10:30AM Jan 17, 2021Observed: 3.22 ft at 10:45AM Jan 17, 2021Observed: 3.22 ft at 11:00AM Jan 17, 2021Observed: 3.22 ft at 11:15AM Jan 17, 2021Observed: 3.22 ft at 11:30AM Jan 17, 2021Observed: 3.22 ft at 11:45AM Jan 17, 2021Observed: 3.22 ft at 12:00PM Jan 17, 2021Observed: 3.21 ft at 12:15PM Jan 17, 2021Observed: 3.21 ft at 12:30PM Jan 17, 2021Observed: 3.21 ft at 12:45PM Jan 17, 2021Observed: 3.21 ft at 1:00PM Jan 17, 2021Observed: 3.21 ft at 1:15PM Jan 17, 2021Observed: 3.2 ft at 1:30PM Jan 17, 2021Observed: 3.2 ft at 1:45PM Jan 17, 2021Observed: 3.2 ft at 2:00PM Jan 17, 2021Observed: 3.2 ft at 2:15PM Jan 17, 2021Observed: 3.2 ft at 2:30PM Jan 17, 2021Observed: 3.2 ft at 2:45PM Jan 17, 2021Observed: 3.2 ft at 3:00PM Jan 17, 2021Observed: 3.19 ft at 3:15PM Jan 17, 2021Observed: 3.19 ft at 3:30PM Jan 17, 2021Observed: 3.19 ft at 3:45PM Jan 17, 2021Observed: 3.19 ft at 4:00PM Jan 17, 2021Observed: 3.18 ft at 4:15PM Jan 17, 2021Observed: 3.18 ft at 4:30PM Jan 17, 2021Observed: 3.18 ft at 4:45PM Jan 17, 2021Observed: 3.18 ft at 5:00PM Jan 17, 2021Observed: 3.18 ft at 5:15PM Jan 17, 2021Observed: 3.18 ft at 5:30PM Jan 17, 2021Observed: 3.18 ft at 5:45PM Jan 17, 2021Observed: 3.18 ft at 6:00PM Jan 17, 2021Observed: 3.18 ft at 6:15PM Jan 17, 2021Observed: 3.18 ft at 6:30PM Jan 17, 2021Observed: 3.18 ft at 6:45PM Jan 17, 2021Observed: 3.17 ft at 7:00PM Jan 17, 2021Observed: 3.17 ft at 7:15PM Jan 17, 2021Observed: 3.17 ft at 7:30PM Jan 17, 2021Observed: 3.17 ft at 7:45PM Jan 17, 2021Observed: 3.17 ft at 8:00PM Jan 17, 2021Observed: 3.17 ft at 8:15PM Jan 17, 2021Observed: 3.17 ft at 8:30PM Jan 17, 2021Observed: 3.16 ft at 8:45PM Jan 17, 2021Observed: 3.16 ft at 9:00PM Jan 17, 2021Observed: 3.16 ft at 9:15PM Jan 17, 2021Observed: 3.16 ft at 9:30PM Jan 17, 2021Observed: 3.16 ft at 9:45PM Jan 17, 2021Observed: 3.16 ft at 10:00PM Jan 17, 2021Observed: 3.16 ft at 10:15PM Jan 17, 2021Observed: 3.16 ft at 10:30PM Jan 17, 2021Observed: 3.16 ft at 10:45PM Jan 17, 2021Observed: 3.16 ft at 11:00PM Jan 17, 2021Observed: 3.16 ft at 11:15PM Jan 17, 2021Observed: 3.16 ft at 11:30PM Jan 17, 2021Observed: 3.15 ft at 11:45PM Jan 17, 2021Observed: 3.15 ft at 12:00AM Jan 18, 2021Observed: 3.15 ft at 12:15AM Jan 18, 2021Observed: 3.15 ft at 12:30AM Jan 18, 2021Observed: 3.15 ft at 12:45AM Jan 18, 2021Observed: 3.15 ft at 1:00AM Jan 18, 2021Observed: 3.15 ft at 1:15AM Jan 18, 2021Observed: 3.15 ft at 1:30AM Jan 18, 2021Observed: 3.15 ft at 1:45AM Jan 18, 2021Observed: 3.14 ft at 2:00AM Jan 18, 2021Observed: 3.14 ft at 2:15AM Jan 18, 2021Observed: 3.14 ft at 2:30AM Jan 18, 2021Observed: 3.14 ft at 2:45AM Jan 18, 2021Observed: 3.14 ft at 3:00AM Jan 18, 2021Observed: 3.14 ft at 3:15AM Jan 18, 2021Observed: 3.14 ft at 3:30AM Jan 18, 2021Observed: 3.14 ft at 3:45AM Jan 18, 2021Observed: 3.14 ft at 4:00AM Jan 18, 2021Observed: 3.14 ft at 4:15AM Jan 18, 2021Observed: 3.14 ft at 4:30AM Jan 18, 2021Observed: 3.14 ft at 4:45AM Jan 18, 2021Observed: 3.14 ft at 5:00AM Jan 18, 2021Observed: 3.14 ft at 5:15AM Jan 18, 2021Observed: 3.14 ft at 5:30AM Jan 18, 2021Observed: 3.14 ft at 5:45AM Jan 18, 2021Observed: 3.14 ft at 6:00AM Jan 18, 2021Observed: 3.14 ft at 6:15AM Jan 18, 2021Observed: 3.13 ft at 6:30AM Jan 18, 2021Observed: 3.13 ft at 6:45AM Jan 18, 2021Observed: 3.13 ft at 7:00AM Jan 18, 2021Observed: 3.13 ft at 7:15AM Jan 18, 2021Observed: 3.13 ft at 7:30AM Jan 18, 2021Observed: 3.13 ft at 7:45AM Jan 18, 2021Observed: 3.13 ft at 8:00AM Jan 18, 2021Observed: 3.13 ft at 8:15AM Jan 18, 2021Observed: 3.13 ft at 8:30AM Jan 18, 2021Observed: 3.13 ft at 8:45AM Jan 18, 2021Observed: 3.13 ft at 9:00AM Jan 18, 2021Observed: 3.13 ft at 9:15AM Jan 18, 2021Observed: 3.13 ft at 9:30AM Jan 18, 2021Observed: 3.13 ft at 9:45AM Jan 18, 2021Observed: 3.12 ft at 10:00AM Jan 18, 2021Observed: 3.12 ft at 10:15AM Jan 18, 2021Observed: 3.12 ft at 10:30AM Jan 18, 2021Observed: 3.12 ft at 10:45AM Jan 18, 2021Observed: 3.12 ft at 11:00AM Jan 18, 2021Observed: 3.12 ft at 11:15AM Jan 18, 2021Observed: 3.12 ft at 11:30AM Jan 18, 2021Observed: 3.12 ft at 11:45AM Jan 18, 2021Observed: 3.12 ft at 12:00PM Jan 18, 2021Observed: 3.12 ft at 12:15PM Jan 18, 2021Observed: 3.12 ft at 12:30PM Jan 18, 2021Observed: 3.12 ft at 12:45PM Jan 18, 2021Observed: 3.12 ft at 1:00PM Jan 18, 2021Observed: 3.12 ft at 1:15PM Jan 18, 2021Observed: 3.12 ft at 1:30PM Jan 18, 2021Observed: 3.12 ft at 1:45PM Jan 18, 2021Observed: 3.12 ft at 2:00PM Jan 18, 2021Observed: 3.12 ft at 2:15PM Jan 18, 2021Observed: 3.12 ft at 2:30PM Jan 18, 2021Observed: 3.12 ft at 2:45PM Jan 18, 2021Observed: 3.12 ft at 3:00PM Jan 18, 2021Observed: 3.12 ft at 3:15PM Jan 18, 2021Observed: 3.12 ft at 3:30PM Jan 18, 2021Observed: 3.12 ft at 3:45PM Jan 18, 2021Observed: 3.12 ft at 4:00PM Jan 18, 2021Observed: 3.12 ft at 4:15PM Jan 18, 2021Observed: 3.12 ft at 4:30PM Jan 18, 2021Observed: 3.12 ft at 4:45PM Jan 18, 2021Observed: 3.12 ft at 5:00PM Jan 18, 2021Observed: 3.12 ft at 5:15PM Jan 18, 2021Observed: 3.12 ft at 5:30PM Jan 18, 2021Observed: 3.12 ft at 5:45PM Jan 18, 2021Observed: 3.12 ft at 6:00PM Jan 18, 2021Observed: 3.12 ft at 6:15PM Jan 18, 2021Observed: 3.12 ft at 6:30PM Jan 18, 2021Observed: 3.12 ft at 6:45PM Jan 18, 2021Observed: 3.11 ft at 7:00PM Jan 18, 2021Observed: 3.11 ft at 7:15PM Jan 18, 2021Observed: 3.11 ft at 7:30PM Jan 18, 2021Observed: 3.11 ft at 7:45PM Jan 18, 2021Observed: 3.11 ft at 8:00PM Jan 18, 2021Observed: 3.11 ft at 8:15PM Jan 18, 2021Observed: 3.11 ft at 8:30PM Jan 18, 2021Observed: 3.11 ft at 8:45PM Jan 18, 2021Observed: 3.11 ft at 9:00PM Jan 18, 2021Observed: 3.11 ft at 9:15PM Jan 18, 2021Observed: 3.11 ft at 9:30PM Jan 18, 2021Observed: 3.11 ft at 9:45PM Jan 18, 2021Observed: 3.11 ft at 10:00PM Jan 18, 2021Observed: 3.11 ft at 10:15PM Jan 18, 2021Observed: 3.11 ft at 10:30PM Jan 18, 2021Observed: 3.11 ft at 10:45PM Jan 18, 2021Observed: 3.11 ft at 11:00PM Jan 18, 2021Observed: 3.1 ft at 11:15PM Jan 18, 2021Observed: 3.1 ft at 11:30PM Jan 18, 2021Observed: 3.1 ft at 11:45PM Jan 18, 2021Observed: 3.1 ft at 12:00AM Jan 19, 2021Observed: 3.1 ft at 12:15AM Jan 19, 2021Observed: 3.1 ft at 12:30AM Jan 19, 2021Observed: 3.1 ft at 12:45AM Jan 19, 2021Observed: 3.1 ft at 1:00AM Jan 19, 2021Observed: 3.1 ft at 1:15AM Jan 19, 2021Observed: 3.1 ft at 1:30AM Jan 19, 2021Observed: 3.1 ft at 1:45AM Jan 19, 2021Observed: 3.1 ft at 2:00AM Jan 19, 2021Observed: 3.1 ft at 2:15AM Jan 19, 2021Observed: 3.1 ft at 2:30AM Jan 19, 2021Observed: 3.1 ft at 2:45AM Jan 19, 2021Observed: 3.1 ft at 3:00AM Jan 19, 2021Observed: 3.1 ft at 3:15AM Jan 19, 2021Observed: 3.1 ft at 3:30AM Jan 19, 2021Observed: 3.1 ft at 3:45AM Jan 19, 2021Observed: 3.1 ft at 4:00AM Jan 19, 2021Observed: 3.1 ft at 4:15AM Jan 19, 2021Observed: 3.1 ft at 4:30AM Jan 19, 2021Observed: 3.1 ft at 4:45AM Jan 19, 2021Observed: 3.1 ft at 5:00AM Jan 19, 2021Observed: 3.1 ft at 5:15AM Jan 19, 2021Observed: 3.1 ft at 5:30AM Jan 19, 2021Observed: 3.1 ft at 5:45AM Jan 19, 2021Observed: 3.1 ft at 6:00AM Jan 19, 2021Observed: 3.09 ft at 6:15AM Jan 19, 2021Observed: 3.09 ft at 6:30AM Jan 19, 2021Observed: 3.09 ft at 6:45AM Jan 19, 2021Observed: 3.09 ft at 7:00AM Jan 19, 2021Observed: 3.09 ft at 7:15AM Jan 19, 2021Observed: 3.09 ft at 7:30AM Jan 19, 2021Observed: 3.09 ft at 7:45AM Jan 19, 2021Observed: 3.09 ft at 8:00AM Jan 19, 2021Observed: 3.09 ft at 8:15AM Jan 19, 2021Observed: 3.09 ft at 9:30AM Jan 19, 2021Observed: 3.09 ft at 9:45AM Jan 19, 2021Observed: 3.08 ft at 10:00AM Jan 19, 2021Observed: 3.08 ft at 10:15AM Jan 19, 2021Observed: 3.08 ft at 10:30AM Jan 19, 2021Observed: 3.08 ft at 10:45AM Jan 19, 2021Observed: 3.08 ft at 11:00AM Jan 19, 2021Observed: 3.08 ft at 11:15AM Jan 19, 2021Observed: 3.08 ft at 11:30AM Jan 19, 2021Observed: 3.08 ft at 11:45AM Jan 19, 2021Observed: 3.08 ft at 12:00PM Jan 19, 2021Observed: 3.08 ft at 12:15PM Jan 19, 2021Highest Forecast: 3.1 ft 7:00PM Jan 19, 2021Forecast: 3 ft 1:00AM Jan 20, 2021Forecast: 3 ft 7:00AM Jan 20, 2021Forecast: 3 ft 1:00PM Jan 20, 2021Forecast: 3 ft 7:00PM Jan 20, 2021Forecast: 3 ft 1:00AM Jan 21, 2021Forecast: 3 ft 7:00AM Jan 21, 2021Forecast: 3 ft 1:00PM Jan 21, 2021Forecast: 3 ft 7:00PM Jan 21, 2021Forecast: 3 ft 1:00AM Jan 22, 2021Forecast: 3 ft 7:00AM Jan 22, 2021USGS--Water Resources of the United StatesRRTN4(plotting HGIRG) Graph Created (1:03PM Jan 19, 2021)ObservedForecast (issued 10:41AM Jan 19)Latest observed value: 3.08 ft at 12:15 PM EST 19-Jan-2021. Flood Stage is 10 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EST)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the North Branch Raritan River near Raritan are issued routinely year-round.
Return to Area Map
Upstream Gauge - at North Branch Village Upstream Gauge Downstream Gauge Downstream Gauge - at South Branch
Flood Categories (in feet)
Major Flood Stage: 15
Moderate Flood Stage: 12
Flood Stage: 10
Action Stage: 8
Low Stage (in feet): 0

Historic Crests
(1) 18.98 ft on 09/16/1999
(2) 17.97 ft on 08/28/2011
(3) 15.47 ft on 08/28/1971
(4) 15.44 ft on 10/19/1996
(5) 15.30 ft on 07/07/1984
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 10.51 ft on 11/25/2018
(2) 13.29 ft on 05/01/2014
(3) 12.70 ft on 09/08/2011
(4) 17.97 ft on 08/28/2011
(5) 11.15 ft on 04/17/2011
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 2.23 ft on 10/13/1995
(2) 2.31 ft on 08/06/1966

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
 Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
16 US Route 202 begins to flood.
15 At this level, backwater from the Route 202 bridge effects the river.
13 The first evacuations begin in Village of North Branch at Route 28 and Vaanderveer Avenue.
10 Flooding occurs along Old York Road and in North Branch Village.
7 Minor flooding begins upstream on Black River Road.
About This Location Collapse

Latitude: 40.570556° N, Longitude: 74.679167° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 10 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 50.43 ft 60.43 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:
Additional Information Collapse
Potential River Levels - Used to
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 Day (HEFS) 7 Day (NAEFS) 7 Day (GEFS)
HEFS Ensemble NAEFS Ensemble GEFS Ensemble

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours.

Click individual graphics to enlarge.

During winter months, cold and ice may result in inaccurate real-time stream stage and streamflow data. Adjustments or deletions of this data can only be done after detailed analysis.
Resources Collapse
Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Philadelphia/Mount Holly Weather Forecast Office
732 Woodlane Road
Mount Holly, NJ 08060-9615
(609) 261-6600
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