Skip Navigation Link weather.gov  
NOAA logo - Click to go to the NOAA homepage National Weather Service NWS logo - Click to go to the NWS homepage
Advanced Hydrologic Prediction Service
Image background of Navigation bar Left
Bookmark and Share Navigation Bar End Cap

  
 

Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

Experimental National Water Center Products: The National Hydrologic Discussion, Area Hydrologic Discussion, and Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via https://www.weather.gov/owp/operations, as described in the StoryMap here.



Hydrograph River at a Glance Download Inundation
Mapping
Passaic River at Chatham Stage (ft)Flow (kcfs)Observed: 3.39 ft at 12:00AM Jun 02, 2023Observed: 3.39 ft at 12:15AM Jun 02, 2023Observed: 3.39 ft at 12:30AM Jun 02, 2023Observed: 3.39 ft at 12:45AM Jun 02, 2023Observed: 3.39 ft at 1:00AM Jun 02, 2023Observed: 3.39 ft at 1:15AM Jun 02, 2023Observed: 3.39 ft at 1:30AM Jun 02, 2023Observed: 3.39 ft at 1:45AM Jun 02, 2023Observed: 3.39 ft at 2:00AM Jun 02, 2023Observed: 3.39 ft at 2:15AM Jun 02, 2023Observed: 3.39 ft at 2:30AM Jun 02, 2023Observed: 3.39 ft at 2:45AM Jun 02, 2023Observed: 3.39 ft at 3:00AM Jun 02, 2023Observed: 3.39 ft at 3:15AM Jun 02, 2023Observed: 3.39 ft at 3:30AM Jun 02, 2023Observed: 3.39 ft at 3:45AM Jun 02, 2023Observed: 3.39 ft at 4:00AM Jun 02, 2023Observed: 3.39 ft at 4:15AM Jun 02, 2023Observed: 3.39 ft at 4:30AM Jun 02, 2023Observed: 3.39 ft at 4:45AM Jun 02, 2023Observed: 3.39 ft at 5:00AM Jun 02, 2023Observed: 3.39 ft at 5:15AM Jun 02, 2023Observed: 3.38 ft at 5:30AM Jun 02, 2023Observed: 3.38 ft at 5:45AM Jun 02, 2023Observed: 3.38 ft at 6:00AM Jun 02, 2023Observed: 3.38 ft at 6:15AM Jun 02, 2023Observed: 3.38 ft at 6:30AM Jun 02, 2023Observed: 3.38 ft at 6:45AM Jun 02, 2023Observed: 3.38 ft at 7:00AM Jun 02, 2023Observed: 3.38 ft at 7:15AM Jun 02, 2023Observed: 3.38 ft at 7:30AM Jun 02, 2023Observed: 3.38 ft at 7:45AM Jun 02, 2023Observed: 3.38 ft at 8:00AM Jun 02, 2023Observed: 3.38 ft at 8:15AM Jun 02, 2023Observed: 3.38 ft at 8:30AM Jun 02, 2023Observed: 3.38 ft at 8:45AM Jun 02, 2023Observed: 3.38 ft at 9:00AM Jun 02, 2023Observed: 3.39 ft at 9:15AM Jun 02, 2023Observed: 3.38 ft at 9:30AM Jun 02, 2023Observed: 3.38 ft at 9:45AM Jun 02, 2023Observed: 3.38 ft at 10:00AM Jun 02, 2023Observed: 3.39 ft at 10:15AM Jun 02, 2023Observed: 3.39 ft at 10:30AM Jun 02, 2023Observed: 3.38 ft at 10:45AM Jun 02, 2023Observed: 3.38 ft at 11:00AM Jun 02, 2023Observed: 3.39 ft at 11:15AM Jun 02, 2023Observed: 3.39 ft at 11:30AM Jun 02, 2023Observed: 3.38 ft at 11:45AM Jun 02, 2023Observed: 3.39 ft at 12:00PM Jun 02, 2023Observed: 3.39 ft at 12:15PM Jun 02, 2023Observed: 3.39 ft at 12:30PM Jun 02, 2023Observed: 3.38 ft at 12:45PM Jun 02, 2023Observed: 3.38 ft at 1:00PM Jun 02, 2023Observed: 3.38 ft at 1:15PM Jun 02, 2023Observed: 3.38 ft at 1:30PM Jun 02, 2023Observed: 3.38 ft at 1:45PM Jun 02, 2023Observed: 3.38 ft at 2:00PM Jun 02, 2023Observed: 3.38 ft at 2:15PM Jun 02, 2023Observed: 3.38 ft at 2:30PM Jun 02, 2023Observed: 3.38 ft at 2:45PM Jun 02, 2023Observed: 3.38 ft at 3:00PM Jun 02, 2023Observed: 3.38 ft at 3:15PM Jun 02, 2023Observed: 3.38 ft at 3:30PM Jun 02, 2023Observed: 3.38 ft at 3:45PM Jun 02, 2023Observed: 3.38 ft at 4:00PM Jun 02, 2023Observed: 3.38 ft at 4:15PM Jun 02, 2023Observed: 3.38 ft at 4:30PM Jun 02, 2023Observed: 3.38 ft at 4:45PM Jun 02, 2023Observed: 3.38 ft at 5:00PM Jun 02, 2023Observed: 3.38 ft at 5:15PM Jun 02, 2023Observed: 3.38 ft at 5:30PM Jun 02, 2023Observed: 3.38 ft at 5:45PM Jun 02, 2023Observed: 3.38 ft at 6:00PM Jun 02, 2023Observed: 3.39 ft at 6:15PM Jun 02, 2023Observed: 3.43 ft at 7:30PM Jun 02, 2023Observed: 3.45 ft at 7:45PM Jun 02, 2023Observed: 3.45 ft at 8:00PM Jun 02, 2023Observed: 3.46 ft at 8:15PM Jun 02, 2023Observed: 3.48 ft at 8:30PM Jun 02, 2023Observed: 3.49 ft at 8:45PM Jun 02, 2023Observed: 3.5 ft at 9:00PM Jun 02, 2023Observed: 3.5 ft at 9:15PM Jun 02, 2023Observed: 3.5 ft at 9:30PM Jun 02, 2023Observed: 3.5 ft at 9:45PM Jun 02, 2023Highest Observation: 3.51 ft at 10:00PM Jun 02, 2023Highest Observation: 3.51 ft at 10:15PM Jun 02, 2023Highest Observation: 3.51 ft at 10:30PM Jun 02, 2023Observed: 3.5 ft at 10:45PM Jun 02, 2023Observed: 3.5 ft at 11:00PM Jun 02, 2023Observed: 3.5 ft at 11:15PM Jun 02, 2023Observed: 3.5 ft at 11:30PM Jun 02, 2023Observed: 3.49 ft at 11:45PM Jun 02, 2023Observed: 3.49 ft at 12:00AM Jun 03, 2023Observed: 3.49 ft at 12:15AM Jun 03, 2023Observed: 3.49 ft at 12:30AM Jun 03, 2023Observed: 3.48 ft at 12:45AM Jun 03, 2023Observed: 3.48 ft at 1:00AM Jun 03, 2023Observed: 3.48 ft at 1:15AM Jun 03, 2023Observed: 3.47 ft at 1:30AM Jun 03, 2023Observed: 3.47 ft at 1:45AM Jun 03, 2023Observed: 3.46 ft at 2:00AM Jun 03, 2023Observed: 3.46 ft at 2:15AM Jun 03, 2023Observed: 3.45 ft at 2:30AM Jun 03, 2023Observed: 3.45 ft at 2:45AM Jun 03, 2023Observed: 3.45 ft at 3:00AM Jun 03, 2023Observed: 3.45 ft at 3:15AM Jun 03, 2023Observed: 3.44 ft at 3:30AM Jun 03, 2023Observed: 3.44 ft at 3:45AM Jun 03, 2023Observed: 3.44 ft at 4:00AM Jun 03, 2023Observed: 3.43 ft at 4:15AM Jun 03, 2023Observed: 3.43 ft at 4:30AM Jun 03, 2023Observed: 3.43 ft at 4:45AM Jun 03, 2023Observed: 3.43 ft at 5:00AM Jun 03, 2023Observed: 3.42 ft at 5:15AM Jun 03, 2023Observed: 3.42 ft at 5:30AM Jun 03, 2023Observed: 3.42 ft at 5:45AM Jun 03, 2023Observed: 3.42 ft at 6:00AM Jun 03, 2023Observed: 3.42 ft at 6:15AM Jun 03, 2023Observed: 3.41 ft at 6:30AM Jun 03, 2023Observed: 3.41 ft at 6:45AM Jun 03, 2023Observed: 3.41 ft at 7:00AM Jun 03, 2023Observed: 3.41 ft at 7:15AM Jun 03, 2023Observed: 3.41 ft at 7:30AM Jun 03, 2023Observed: 3.4 ft at 7:45AM Jun 03, 2023Observed: 3.4 ft at 8:00AM Jun 03, 2023Observed: 3.4 ft at 8:15AM Jun 03, 2023Observed: 3.4 ft at 8:30AM Jun 03, 2023Observed: 3.4 ft at 8:45AM Jun 03, 2023Observed: 3.4 ft at 9:00AM Jun 03, 2023Observed: 3.4 ft at 9:15AM Jun 03, 2023Observed: 3.4 ft at 9:30AM Jun 03, 2023Observed: 3.4 ft at 9:45AM Jun 03, 2023Observed: 3.4 ft at 10:00AM Jun 03, 2023Observed: 3.39 ft at 10:15AM Jun 03, 2023Observed: 3.39 ft at 10:30AM Jun 03, 2023Observed: 3.39 ft at 10:45AM Jun 03, 2023Observed: 3.39 ft at 11:00AM Jun 03, 2023Observed: 3.39 ft at 11:15AM Jun 03, 2023Observed: 3.39 ft at 11:30AM Jun 03, 2023Observed: 3.39 ft at 11:45AM Jun 03, 2023Observed: 3.4 ft at 12:00PM Jun 03, 2023Observed: 3.39 ft at 12:15PM Jun 03, 2023Observed: 3.39 ft at 12:30PM Jun 03, 2023Observed: 3.39 ft at 12:45PM Jun 03, 2023Observed: 3.39 ft at 1:00PM Jun 03, 2023Observed: 3.38 ft at 1:15PM Jun 03, 2023Observed: 3.38 ft at 1:30PM Jun 03, 2023Observed: 3.38 ft at 1:45PM Jun 03, 2023Observed: 3.38 ft at 2:00PM Jun 03, 2023Observed: 3.38 ft at 2:15PM Jun 03, 2023Observed: 3.39 ft at 2:30PM Jun 03, 2023Observed: 3.39 ft at 2:45PM Jun 03, 2023Observed: 3.38 ft at 3:00PM Jun 03, 2023Observed: 3.39 ft at 3:15PM Jun 03, 2023Observed: 3.38 ft at 4:30PM Jun 03, 2023Observed: 3.38 ft at 4:45PM Jun 03, 2023Observed: 3.37 ft at 5:00PM Jun 03, 2023Observed: 3.37 ft at 5:15PM Jun 03, 2023Observed: 3.37 ft at 5:30PM Jun 03, 2023Observed: 3.37 ft at 5:45PM Jun 03, 2023Observed: 3.37 ft at 6:00PM Jun 03, 2023Observed: 3.37 ft at 6:15PM Jun 03, 2023Observed: 3.37 ft at 6:30PM Jun 03, 2023Observed: 3.37 ft at 6:45PM Jun 03, 2023Observed: 3.37 ft at 7:00PM Jun 03, 2023Observed: 3.37 ft at 7:15PM Jun 03, 2023Observed: 3.37 ft at 7:30PM Jun 03, 2023Observed: 3.37 ft at 7:45PM Jun 03, 2023Observed: 3.37 ft at 8:00PM Jun 03, 2023Observed: 3.37 ft at 8:15PM Jun 03, 2023Observed: 3.37 ft at 8:30PM Jun 03, 2023Observed: 3.37 ft at 8:45PM Jun 03, 2023Observed: 3.37 ft at 9:00PM Jun 03, 2023Observed: 3.37 ft at 9:15PM Jun 03, 2023Observed: 3.37 ft at 9:30PM Jun 03, 2023Observed: 3.37 ft at 9:45PM Jun 03, 2023Observed: 3.37 ft at 10:00PM Jun 03, 2023Observed: 3.37 ft at 10:15PM Jun 03, 2023Observed: 3.37 ft at 10:30PM Jun 03, 2023Observed: 3.37 ft at 10:45PM Jun 03, 2023Observed: 3.37 ft at 11:00PM Jun 03, 2023Observed: 3.36 ft at 11:15PM Jun 03, 2023Observed: 3.36 ft at 11:30PM Jun 03, 2023Observed: 3.36 ft at 11:45PM Jun 03, 2023Observed: 3.36 ft at 12:00AM Jun 04, 2023Observed: 3.36 ft at 12:15AM Jun 04, 2023Observed: 3.36 ft at 12:30AM Jun 04, 2023Observed: 3.36 ft at 12:45AM Jun 04, 2023Observed: 3.36 ft at 1:00AM Jun 04, 2023Observed: 3.36 ft at 1:15AM Jun 04, 2023Observed: 3.36 ft at 1:30AM Jun 04, 2023Observed: 3.36 ft at 1:45AM Jun 04, 2023Observed: 3.36 ft at 2:00AM Jun 04, 2023Observed: 3.36 ft at 2:15AM Jun 04, 2023Observed: 3.36 ft at 2:30AM Jun 04, 2023Observed: 3.36 ft at 2:45AM Jun 04, 2023Observed: 3.36 ft at 3:00AM Jun 04, 2023Observed: 3.36 ft at 3:15AM Jun 04, 2023Observed: 3.36 ft at 3:30AM Jun 04, 2023Observed: 3.36 ft at 3:45AM Jun 04, 2023Observed: 3.36 ft at 4:00AM Jun 04, 2023Observed: 3.36 ft at 4:15AM Jun 04, 2023Observed: 3.35 ft at 4:30AM Jun 04, 2023Observed: 3.35 ft at 4:45AM Jun 04, 2023Observed: 3.35 ft at 5:00AM Jun 04, 2023Observed: 3.35 ft at 5:15AM Jun 04, 2023Observed: 3.35 ft at 5:30AM Jun 04, 2023Observed: 3.35 ft at 5:45AM Jun 04, 2023Observed: 3.35 ft at 6:00AM Jun 04, 2023Observed: 3.35 ft at 6:15AM Jun 04, 2023Observed: 3.35 ft at 6:30AM Jun 04, 2023Observed: 3.35 ft at 6:45AM Jun 04, 2023Observed: 3.35 ft at 7:00AM Jun 04, 2023Observed: 3.35 ft at 7:15AM Jun 04, 2023Observed: 3.35 ft at 7:30AM Jun 04, 2023Observed: 3.35 ft at 7:45AM Jun 04, 2023Observed: 3.35 ft at 8:00AM Jun 04, 2023Observed: 3.35 ft at 8:15AM Jun 04, 2023Observed: 3.35 ft at 8:30AM Jun 04, 2023Observed: 3.35 ft at 8:45AM Jun 04, 2023Observed: 3.35 ft at 9:00AM Jun 04, 2023Observed: 3.35 ft at 9:15AM Jun 04, 2023Observed: 3.35 ft at 9:30AM Jun 04, 2023Observed: 3.35 ft at 9:45AM Jun 04, 2023Observed: 3.35 ft at 10:00AM Jun 04, 2023Observed: 3.35 ft at 10:15AM Jun 04, 2023Observed: 3.35 ft at 10:30AM Jun 04, 2023Observed: 3.35 ft at 10:45AM Jun 04, 2023Observed: 3.35 ft at 11:00AM Jun 04, 2023Observed: 3.35 ft at 11:15AM Jun 04, 2023Observed: 3.35 ft at 11:30AM Jun 04, 2023Observed: 3.35 ft at 11:45AM Jun 04, 2023Observed: 3.35 ft at 12:00PM Jun 04, 2023Observed: 3.35 ft at 12:15PM Jun 04, 2023Observed: 3.35 ft at 12:30PM Jun 04, 2023Observed: 3.35 ft at 12:45PM Jun 04, 2023Observed: 3.35 ft at 1:00PM Jun 04, 2023Observed: 3.35 ft at 1:15PM Jun 04, 2023Observed: 3.35 ft at 1:30PM Jun 04, 2023Observed: 3.35 ft at 1:45PM Jun 04, 2023Observed: 3.35 ft at 2:00PM Jun 04, 2023Observed: 3.35 ft at 2:15PM Jun 04, 2023Observed: 3.35 ft at 2:30PM Jun 04, 2023Observed: 3.35 ft at 2:45PM Jun 04, 2023Observed: 3.35 ft at 3:00PM Jun 04, 2023Observed: 3.35 ft at 3:15PM Jun 04, 2023Observed: 3.35 ft at 3:30PM Jun 04, 2023Observed: 3.35 ft at 3:45PM Jun 04, 2023Observed: 3.35 ft at 4:00PM Jun 04, 2023Observed: 3.35 ft at 4:15PM Jun 04, 2023Observed: 3.34 ft at 6:30PM Jun 04, 2023Observed: 3.35 ft at 6:45PM Jun 04, 2023Observed: 3.35 ft at 7:00PM Jun 04, 2023Observed: 3.35 ft at 7:15PM Jun 04, 2023Observed: 3.35 ft at 7:30PM Jun 04, 2023Observed: 3.35 ft at 7:45PM Jun 04, 2023Observed: 3.35 ft at 8:00PM Jun 04, 2023Observed: 3.35 ft at 8:15PM Jun 04, 2023Observed: 3.35 ft at 8:30PM Jun 04, 2023Observed: 3.35 ft at 8:45PM Jun 04, 2023Observed: 3.35 ft at 9:00PM Jun 04, 2023Observed: 3.35 ft at 9:15PM Jun 04, 2023Observed: 3.35 ft at 9:30PM Jun 04, 2023Observed: 3.35 ft at 9:45PM Jun 04, 2023Observed: 3.35 ft at 10:00PM Jun 04, 2023Observed: 3.35 ft at 10:15PM Jun 04, 2023Observed: 3.35 ft at 10:30PM Jun 04, 2023Observed: 3.35 ft at 10:45PM Jun 04, 2023Observed: 3.35 ft at 11:00PM Jun 04, 2023Observed: 3.35 ft at 11:15PM Jun 04, 2023Highest Forecast: 3.3 ft 2:00AM Jun 05, 2023Highest Forecast: 3.3 ft 8:00AM Jun 05, 2023Highest Forecast: 3.3 ft 2:00PM Jun 05, 2023Highest Forecast: 3.3 ft 8:00PM Jun 05, 2023Highest Forecast: 3.3 ft 2:00AM Jun 06, 2023Highest Forecast: 3.3 ft 8:00AM Jun 06, 2023Highest Forecast: 3.3 ft 2:00PM Jun 06, 2023Highest Forecast: 3.3 ft 8:00PM Jun 06, 2023Highest Forecast: 3.3 ft 2:00AM Jun 07, 2023Highest Forecast: 3.3 ft 8:00AM Jun 07, 2023USGS--Water Resources of the United StatesCAMN4(plotting HGIRG) Graph Created (11:48PM Jun 4, 2023)ObservedForecast (issued 10:01AM Jun 4)Latest observed value: 3.35 ft at 11:15 PM EDT 4-Jun-2023. Flood Stage is 6 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NGVD29
Metadata
NOTE: Forecasts for the Passaic River at Chatham are issued routinely year-round.
Return to Area Map
Upstream Gauge - near Millington Upstream Gauge Downstream Gauge Downstream Gauge - at Pine Brook
Flood Categories (in feet)
Major Flood Stage: 10
Moderate Flood Stage: 8
Flood Stage: 6
Action Stage: 5.5
Low Stage (in feet): 0

Historic Crests
(1) 9.36 ft on 08/02/1973
(2) 8.41 ft on 09/02/2021
(3) 8.30 ft on 01/09/1905
(4) 8.16 ft on 08/28/1971
(5) 8.14 ft on 09/27/1975
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 8.41 ft on 09/02/2021
(2) 6.46 ft on 05/01/2014
(3) 6.25 ft on 09/09/2011
(4) 7.76 ft on 08/29/2011
(5) 6.38 ft on 04/17/2011
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 3.25 ft on 10/11/1983

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
11 Flooding begins between University Avenue and Route 24, north of Main Street.
10 Charwood and Brook Roads begin to flood. Passaic Street begins to flood near the intersection of Osborne Avenue. Edward Court begins to flood.
9 Business parking lots between Chatham Road and the Passaic River flood.
8 Businesses along John F. Kennedy Parkway, west of the Morris Turnpike, begin to flood.
6.5 The Central and Bridge Avenue bridges in Chatham Township are subject to closures. Edgewood Road is closed.
6 Portions of the Shepard Kolluck Park in Chatham floods. River Road by Henry Drive is subject to closures.
5.5 Open areas adjacent to the Passaic River flood in New Providence, Chatham Township, and Berkley Heights.
About This Location Collapse

Latitude: 40.726111° N, Longitude: 74.389722° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 6 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 29 193.51 ft 199.51 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) 10 Day (NAEFS) 10 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
Ask Questions/Webmaster
Page last modified: 2-Nov-2020 7:30 PM
Disclaimer
Credits
Glossary
Privacy Policy
About Us
Career Opportunities