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Weather Forecast Office Philadelphia/Mount Holly, NJ

Middle Atlantic River Forecast Center

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Inundation Mapping

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Printable Image About this graph Tabular Data (UTC) Tabular Data (EDT) Datum: NGVD29 Metadata

NOTE: Gauge reading affected by reservoir operations. NOTE: Forecasts for the Passaic River at Singac are issued routinely year-round.

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Upstream Gauge

Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 12 Moderate Flood Stage: 10 Flood Stage: 8.5 Action Stage: 7 Low Stage (in feet): -9999 Historic Crests (1) 11.45 ft on 09/03/2021 (2) 9.65 ft on 05/03/2014 (3) 9.38 ft on 12/23/2018 (4) 9.27 ft on 04/10/2022 (5) 9.11 ft on 11/28/2018 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 9.27 ft on 04/10/2022 (2) 11.45 ft on 09/03/2021 (3) 8.89 ft on 08/24/2021 (4) 8.14 ft on 05/15/2019 (5) 8.32 ft on 01/26/2019 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records Currently none available.

Zoom Level:16 Legend FEMA Layer Gauge Location 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

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19	Route 80 floods and is subject to closures.
17.5	On and off ramps to Route 80 in Wayne flood.
16.5	Wayne Towne Center and Willowbrook Mall buildings are inundated.
13.5	Widespread flooding occurs in the Singac section of Little falls extending from the Passaic River to Main Street. Widespread roadway and parking lot flooding occurs across the Wayne Towne Center and Willowbrook Mall. Route 46 floods and is subject to closures. Flooding extends across Fairfield.
13	Flooding increases and spreads across Lincoln Park between the Meadows Golf Club and the Pompton River. Flooding spreads across Fairfield in the vicinity of Big Piece Road. Horseneck Road in Fairfield becomes impassable.
12	Willowbrook Boulevard begins to flood. The Route 46 ramp to access the Willowbrook Mall can flood as the Naachtpunkt Brook backs up.
11	Little Falls Road in Fairfield floods. Flooding increases across the Singac section of Little Falls.
10	Two Bridges Road in Fairfield begins to flood. Finns Drive, Siesta Drive, and Market street in Wayne are all susceptible to flooding. William Street, Louis Street, and Zeliff Avenue in Little Falls can begin to flood. Portions of Lincoln Park become impassable. The Meadows Golf Club in Lincoln Park floods.
9.5	Camp Lane and Marginal Road in Fairfield begins to flood.
9	Two Bridges Road in Fairfield is subject to closures.
8.5	Portions of the Wayne Town Center parking lot begin to flood. Hobson Avenue and Riverlawn Drive in Wayne begin to flood. Fairfield Road, Fayette Avenue, and Riversedge Road in Wayne can flood as water backs up the Pompton River. Lincoln Boulevard in Lincoln Park can also flood due to backwater up the Pompton river. The Pequannock River Park also floods.

About This Location

Latitude: 40.894400° N, Longitude: 74.266100° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 8.5 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 29 155.0 163.5 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: U.S. Geological Survey (USGS) Data and Site Info for Singac

Additional Information

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

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Inundation Mapping Locations

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Snow Information Ensemble River Forecasts Hourly Precipitation

Collaborative Agencies 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