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Hydrograph River at a Glance Download
Mahwah River at Suffern Stage (ft)Flow (kcfs)Highest Observation: 1.7 ft at 1:45AM Jun 11, 2021Observed: 1.69 ft at 2:00AM Jun 11, 2021Observed: 1.69 ft at 2:15AM Jun 11, 2021Highest Observation: 1.7 ft at 2:30AM Jun 11, 2021Highest Observation: 1.7 ft at 2:45AM Jun 11, 2021Highest Observation: 1.7 ft at 3:00AM Jun 11, 2021Observed: 1.69 ft at 3:15AM Jun 11, 2021Highest Observation: 1.7 ft at 3:30AM Jun 11, 2021Highest Observation: 1.7 ft at 3:45AM Jun 11, 2021Observed: 1.69 ft at 4:00AM Jun 11, 2021Observed: 1.69 ft at 4:15AM Jun 11, 2021Observed: 1.69 ft at 4:30AM Jun 11, 2021Observed: 1.69 ft at 4:45AM Jun 11, 2021Observed: 1.69 ft at 5:00AM Jun 11, 2021Observed: 1.69 ft at 5:15AM Jun 11, 2021Observed: 1.69 ft at 5:30AM Jun 11, 2021Observed: 1.69 ft at 5:45AM Jun 11, 2021Observed: 1.69 ft at 6:00AM Jun 11, 2021Observed: 1.69 ft at 6:15AM Jun 11, 2021Observed: 1.69 ft at 6:30AM Jun 11, 2021Observed: 1.69 ft at 6:45AM Jun 11, 2021Observed: 1.69 ft at 7:00AM Jun 11, 2021Observed: 1.69 ft at 7:15AM Jun 11, 2021Observed: 1.69 ft at 7:30AM Jun 11, 2021Observed: 1.69 ft at 7:45AM Jun 11, 2021Observed: 1.69 ft at 8:00AM Jun 11, 2021Observed: 1.68 ft at 8:15AM Jun 11, 2021Observed: 1.69 ft at 8:30AM Jun 11, 2021Observed: 1.69 ft at 8:45AM Jun 11, 2021Observed: 1.69 ft at 9:00AM Jun 11, 2021Observed: 1.69 ft at 9:15AM Jun 11, 2021Observed: 1.68 ft at 9:30AM Jun 11, 2021Observed: 1.69 ft at 9:45AM Jun 11, 2021Observed: 1.68 ft at 10:00AM Jun 11, 2021Observed: 1.69 ft at 10:15AM Jun 11, 2021Observed: 1.68 ft at 10:30AM Jun 11, 2021Observed: 1.69 ft at 10:45AM Jun 11, 2021Observed: 1.68 ft at 11:00AM Jun 11, 2021Observed: 1.68 ft at 11:15AM Jun 11, 2021Observed: 1.68 ft at 11:30AM Jun 11, 2021Observed: 1.68 ft at 11:45AM Jun 11, 2021Observed: 1.68 ft at 12:00PM Jun 11, 2021Observed: 1.68 ft at 12:15PM Jun 11, 2021Observed: 1.68 ft at 12:30PM Jun 11, 2021Observed: 1.68 ft at 12:45PM Jun 11, 2021Observed: 1.68 ft at 1:00PM Jun 11, 2021Observed: 1.68 ft at 1:15PM Jun 11, 2021Observed: 1.68 ft at 1:30PM Jun 11, 2021Observed: 1.68 ft at 1:45PM Jun 11, 2021Observed: 1.67 ft at 2:00PM Jun 11, 2021Observed: 1.68 ft at 2:15PM Jun 11, 2021Observed: 1.67 ft at 2:30PM Jun 11, 2021Observed: 1.67 ft at 2:45PM Jun 11, 2021Observed: 1.68 ft at 3:00PM Jun 11, 2021Observed: 1.67 ft at 3:15PM Jun 11, 2021Observed: 1.67 ft at 3:30PM Jun 11, 2021Observed: 1.67 ft at 3:45PM Jun 11, 2021Observed: 1.67 ft at 4:00PM Jun 11, 2021Observed: 1.67 ft at 4:15PM Jun 11, 2021Observed: 1.67 ft at 4:30PM Jun 11, 2021Observed: 1.67 ft at 4:45PM Jun 11, 2021Observed: 1.66 ft at 5:00PM Jun 11, 2021Observed: 1.67 ft at 5:15PM Jun 11, 2021Observed: 1.66 ft at 5:30PM Jun 11, 2021Observed: 1.66 ft at 5:45PM Jun 11, 2021Observed: 1.66 ft at 6:00PM Jun 11, 2021Observed: 1.66 ft at 6:15PM Jun 11, 2021Observed: 1.66 ft at 6:30PM Jun 11, 2021Observed: 1.66 ft at 6:45PM Jun 11, 2021Observed: 1.66 ft at 7:00PM Jun 11, 2021Observed: 1.66 ft at 7:15PM Jun 11, 2021Observed: 1.66 ft at 7:30PM Jun 11, 2021Observed: 1.66 ft at 7:45PM Jun 11, 2021Observed: 1.66 ft at 8:00PM Jun 11, 2021Observed: 1.66 ft at 8:15PM Jun 11, 2021Observed: 1.66 ft at 8:30PM Jun 11, 2021Observed: 1.66 ft at 8:45PM Jun 11, 2021Observed: 1.66 ft at 9:00PM Jun 11, 2021Observed: 1.66 ft at 9:15PM Jun 11, 2021Observed: 1.66 ft at 9:30PM Jun 11, 2021Observed: 1.66 ft at 9:45PM Jun 11, 2021Observed: 1.66 ft at 10:00PM Jun 11, 2021Observed: 1.66 ft at 10:15PM Jun 11, 2021Observed: 1.66 ft at 10:30PM Jun 11, 2021Observed: 1.66 ft at 10:45PM Jun 11, 2021Observed: 1.66 ft at 11:00PM Jun 11, 2021Observed: 1.66 ft at 11:15PM Jun 11, 2021Observed: 1.66 ft at 11:30PM Jun 11, 2021Observed: 1.66 ft at 11:45PM Jun 11, 2021Observed: 1.66 ft at 12:00AM Jun 12, 2021Observed: 1.66 ft at 12:15AM Jun 12, 2021Observed: 1.67 ft at 12:30AM Jun 12, 2021Observed: 1.67 ft at 12:45AM Jun 12, 2021Observed: 1.66 ft at 1:00AM Jun 12, 2021Observed: 1.66 ft at 1:15AM Jun 12, 2021Observed: 1.66 ft at 1:30AM Jun 12, 2021Observed: 1.66 ft at 1:45AM Jun 12, 2021Observed: 1.66 ft at 2:00AM Jun 12, 2021Observed: 1.66 ft at 2:15AM Jun 12, 2021Observed: 1.66 ft at 2:30AM Jun 12, 2021Observed: 1.66 ft at 2:45AM Jun 12, 2021Observed: 1.67 ft at 3:00AM Jun 12, 2021Observed: 1.66 ft at 3:15AM Jun 12, 2021Observed: 1.67 ft at 3:30AM Jun 12, 2021Observed: 1.66 ft at 3:45AM Jun 12, 2021Observed: 1.67 ft at 4:00AM Jun 12, 2021Observed: 1.66 ft at 4:15AM Jun 12, 2021Observed: 1.66 ft at 4:30AM Jun 12, 2021Observed: 1.67 ft at 4:45AM Jun 12, 2021Observed: 1.67 ft at 5:00AM Jun 12, 2021Observed: 1.66 ft at 5:15AM Jun 12, 2021Observed: 1.66 ft at 5:30AM Jun 12, 2021Observed: 1.66 ft at 5:45AM Jun 12, 2021Observed: 1.67 ft at 6:00AM Jun 12, 2021Observed: 1.67 ft at 6:15AM Jun 12, 2021Observed: 1.67 ft at 6:30AM Jun 12, 2021Observed: 1.67 ft at 6:45AM Jun 12, 2021Observed: 1.67 ft at 7:00AM Jun 12, 2021Observed: 1.67 ft at 7:15AM Jun 12, 2021Observed: 1.67 ft at 7:30AM Jun 12, 2021Observed: 1.67 ft at 7:45AM Jun 12, 2021Observed: 1.66 ft at 8:00AM Jun 12, 2021Observed: 1.67 ft at 8:15AM Jun 12, 2021Observed: 1.67 ft at 8:30AM Jun 12, 2021Observed: 1.66 ft at 8:45AM Jun 12, 2021Observed: 1.66 ft at 9:00AM Jun 12, 2021Observed: 1.66 ft at 9:15AM Jun 12, 2021Observed: 1.66 ft at 9:30AM Jun 12, 2021Observed: 1.66 ft at 9:45AM Jun 12, 2021Observed: 1.66 ft at 10:00AM Jun 12, 2021Observed: 1.66 ft at 10:15AM Jun 12, 2021Observed: 1.66 ft at 10:30AM Jun 12, 2021Observed: 1.66 ft at 10:45AM Jun 12, 2021Observed: 1.66 ft at 11:00AM Jun 12, 2021Observed: 1.69 ft at 11:15AM Jun 12, 2021Observed: 1.66 ft at 11:30AM Jun 12, 2021Observed: 1.66 ft at 11:45AM Jun 12, 2021Observed: 1.66 ft at 12:00PM Jun 12, 2021Observed: 1.66 ft at 12:15PM Jun 12, 2021Observed: 1.66 ft at 12:30PM Jun 12, 2021Observed: 1.65 ft at 12:45PM Jun 12, 2021Observed: 1.66 ft at 1:00PM Jun 12, 2021Observed: 1.65 ft at 1:15PM Jun 12, 2021Observed: 1.66 ft at 1:30PM Jun 12, 2021Observed: 1.66 ft at 1:45PM Jun 12, 2021Observed: 1.65 ft at 2:00PM Jun 12, 2021Observed: 1.66 ft at 2:15PM Jun 12, 2021Observed: 1.65 ft at 2:30PM Jun 12, 2021Observed: 1.65 ft at 2:45PM Jun 12, 2021Observed: 1.66 ft at 3:00PM Jun 12, 2021Observed: 1.65 ft at 3:15PM Jun 12, 2021Observed: 1.65 ft at 3:30PM Jun 12, 2021Observed: 1.65 ft at 3:45PM Jun 12, 2021Observed: 1.65 ft at 4:00PM Jun 12, 2021Observed: 1.65 ft at 4:15PM Jun 12, 2021Observed: 1.65 ft at 4:30PM Jun 12, 2021Observed: 1.65 ft at 4:45PM Jun 12, 2021Observed: 1.65 ft at 5:00PM Jun 12, 2021Observed: 1.65 ft at 5:15PM Jun 12, 2021Observed: 1.64 ft at 5:30PM Jun 12, 2021Observed: 1.65 ft at 5:45PM Jun 12, 2021Observed: 1.65 ft at 6:00PM Jun 12, 2021Observed: 1.65 ft at 6:15PM Jun 12, 2021Observed: 1.65 ft at 6:30PM Jun 12, 2021Observed: 1.64 ft at 6:45PM Jun 12, 2021Observed: 1.65 ft at 7:00PM Jun 12, 2021Observed: 1.65 ft at 7:15PM Jun 12, 2021Observed: 1.64 ft at 7:30PM Jun 12, 2021Observed: 1.65 ft at 7:45PM Jun 12, 2021Observed: 1.64 ft at 8:00PM Jun 12, 2021Observed: 1.65 ft at 8:15PM Jun 12, 2021Observed: 1.65 ft at 8:30PM Jun 12, 2021Observed: 1.64 ft at 8:45PM Jun 12, 2021Observed: 1.65 ft at 9:00PM Jun 12, 2021Observed: 1.65 ft at 9:15PM Jun 12, 2021Observed: 1.65 ft at 9:30PM Jun 12, 2021Observed: 1.65 ft at 9:45PM Jun 12, 2021Observed: 1.64 ft at 10:00PM Jun 12, 2021Observed: 1.65 ft at 10:15PM Jun 12, 2021Observed: 1.65 ft at 10:30PM Jun 12, 2021Observed: 1.65 ft at 10:45PM Jun 12, 2021Observed: 1.64 ft at 11:00PM Jun 12, 2021Observed: 1.65 ft at 11:15PM Jun 12, 2021Observed: 1.65 ft at 11:30PM Jun 12, 2021Observed: 1.65 ft at 11:45PM Jun 12, 2021Observed: 1.65 ft at 12:00AM Jun 13, 2021Observed: 1.64 ft at 12:15AM Jun 13, 2021Observed: 1.65 ft at 12:30AM Jun 13, 2021Observed: 1.64 ft at 12:45AM Jun 13, 2021Observed: 1.64 ft at 1:00AM Jun 13, 2021Observed: 1.64 ft at 1:15AM Jun 13, 2021Observed: 1.64 ft at 1:30AM Jun 13, 2021Observed: 1.64 ft at 1:45AM Jun 13, 2021Observed: 1.64 ft at 2:00AM Jun 13, 2021Observed: 1.65 ft at 2:15AM Jun 13, 2021Observed: 1.65 ft at 2:30AM Jun 13, 2021Observed: 1.65 ft at 2:45AM Jun 13, 2021Observed: 1.65 ft at 3:00AM Jun 13, 2021Observed: 1.69 ft at 3:15AM Jun 13, 2021Observed: 1.65 ft at 3:30AM Jun 13, 2021Observed: 1.65 ft at 3:45AM Jun 13, 2021Observed: 1.65 ft at 4:00AM Jun 13, 2021Observed: 1.64 ft at 4:15AM Jun 13, 2021Observed: 1.64 ft at 4:30AM Jun 13, 2021Observed: 1.64 ft at 4:45AM Jun 13, 2021Observed: 1.64 ft at 5:00AM Jun 13, 2021Observed: 1.64 ft at 5:15AM Jun 13, 2021Observed: 1.63 ft at 5:30AM Jun 13, 2021Observed: 1.63 ft at 5:45AM Jun 13, 2021Observed: 1.64 ft at 6:00AM Jun 13, 2021Observed: 1.64 ft at 6:15AM Jun 13, 2021Observed: 1.64 ft at 6:30AM Jun 13, 2021Observed: 1.64 ft at 6:45AM Jun 13, 2021Observed: 1.64 ft at 7:00AM Jun 13, 2021Observed: 1.64 ft at 7:15AM Jun 13, 2021Observed: 1.64 ft at 7:30AM Jun 13, 2021Observed: 1.64 ft at 7:45AM Jun 13, 2021Observed: 1.64 ft at 8:00AM Jun 13, 2021Observed: 1.64 ft at 8:15AM Jun 13, 2021Observed: 1.64 ft at 8:30AM Jun 13, 2021Observed: 1.65 ft at 8:45AM Jun 13, 2021Observed: 1.64 ft at 9:00AM Jun 13, 2021Observed: 1.64 ft at 9:15AM Jun 13, 2021Observed: 1.64 ft at 9:30AM Jun 13, 2021Observed: 1.64 ft at 9:45AM Jun 13, 2021Observed: 1.64 ft at 10:00AM Jun 13, 2021Observed: 1.64 ft at 10:15AM Jun 13, 2021Observed: 1.64 ft at 10:30AM Jun 13, 2021Observed: 1.64 ft at 10:45AM Jun 13, 2021Observed: 1.64 ft at 11:00AM Jun 13, 2021Observed: 1.65 ft at 11:15AM Jun 13, 2021Observed: 1.65 ft at 11:30AM Jun 13, 2021Observed: 1.64 ft at 11:45AM Jun 13, 2021Observed: 1.65 ft at 12:00PM Jun 13, 2021Observed: 1.65 ft at 12:15PM Jun 13, 2021Observed: 1.65 ft at 12:30PM Jun 13, 2021Observed: 1.65 ft at 12:45PM Jun 13, 2021Observed: 1.65 ft at 1:00PM Jun 13, 2021Observed: 1.65 ft at 1:15PM Jun 13, 2021Observed: 1.65 ft at 1:30PM Jun 13, 2021Observed: 1.64 ft at 1:45PM Jun 13, 2021Observed: 1.64 ft at 2:00PM Jun 13, 2021Observed: 1.64 ft at 2:15PM Jun 13, 2021Observed: 1.64 ft at 2:30PM Jun 13, 2021Observed: 1.64 ft at 2:45PM Jun 13, 2021Observed: 1.64 ft at 3:00PM Jun 13, 2021Observed: 1.64 ft at 3:15PM Jun 13, 2021Observed: 1.64 ft at 3:30PM Jun 13, 2021Observed: 1.64 ft at 3:45PM Jun 13, 2021Observed: 1.63 ft at 4:00PM Jun 13, 2021Observed: 1.64 ft at 4:15PM Jun 13, 2021Observed: 1.63 ft at 4:30PM Jun 13, 2021Observed: 1.64 ft at 4:45PM Jun 13, 2021Observed: 1.63 ft at 5:00PM Jun 13, 2021Observed: 1.64 ft at 5:15PM Jun 13, 2021Observed: 1.64 ft at 5:30PM Jun 13, 2021Observed: 1.64 ft at 5:45PM Jun 13, 2021Observed: 1.64 ft at 6:00PM Jun 13, 2021Observed: 1.64 ft at 6:15PM Jun 13, 2021Observed: 1.64 ft at 6:30PM Jun 13, 2021Observed: 1.64 ft at 6:45PM Jun 13, 2021Observed: 1.64 ft at 7:00PM Jun 13, 2021Observed: 1.65 ft at 7:15PM Jun 13, 2021Observed: 1.64 ft at 7:30PM Jun 13, 2021Observed: 1.65 ft at 7:45PM Jun 13, 2021Observed: 1.65 ft at 8:00PM Jun 13, 2021Observed: 1.65 ft at 8:15PM Jun 13, 2021Observed: 1.64 ft at 8:30PM Jun 13, 2021Observed: 1.64 ft at 8:45PM Jun 13, 2021Observed: 1.65 ft at 9:00PM Jun 13, 2021Observed: 1.64 ft at 9:15PM Jun 13, 2021Observed: 1.64 ft at 9:30PM Jun 13, 2021Observed: 1.64 ft at 9:45PM Jun 13, 2021Observed: 1.64 ft at 10:00PM Jun 13, 2021Observed: 1.63 ft at 10:15PM Jun 13, 2021Observed: 1.63 ft at 10:30PM Jun 13, 2021Observed: 1.63 ft at 10:45PM Jun 13, 2021Observed: 1.63 ft at 11:00PM Jun 13, 2021Observed: 1.63 ft at 11:15PM Jun 13, 2021Observed: 1.63 ft at 11:30PM Jun 13, 2021Observed: 1.64 ft at 11:45PM Jun 13, 2021Observed: 1.63 ft at 12:00AM Jun 14, 2021Observed: 1.64 ft at 12:15AM Jun 14, 2021Observed: 1.64 ft at 12:30AM Jun 14, 2021USGS--Water Resources of the United StatesSUFN6(plotting HGIRG) Graph Created (1:31AM Jun 14, 2021)ObservedLatest observed value: 1.64 ft at 12:30 AM EDT 14-Jun-2021. Flood Stage is 5 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts are not available for the Mahwah River at Suffern. Only observed stages are available for this point.
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Flood Categories (in feet)
Major Flood Stage: 10.5
Moderate Flood Stage: 7
Flood Stage: 5
Action Stage: 4.5
Low Stage (in feet): 0

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:16
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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
10.6 Major flooding along Mahwah River at Suffern. 8 feet of waters into homes basements. Major flooding in homes in the Squires Gate community along the Mahwah River, especially on Lonergan Drive.
7 Moderate flooding along Mahwah River at Suffern communities. Moderate flooding in homes in the Squires Gate community along the Mahwah River, especially on Lonergan Drive.
5 Minor flooding on homes along the Mahwah River at Suffern. Minor flooding in homes in the Squires Gate community along the Mahwah River, especially on Lonergan Drive.
About This Location Collapse

Latitude: 41.140833° N, Longitude: 74.116944° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 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 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other NULL NULL  

Current/Historical Observations:

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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
Upton Weather Forecast Office
175 Brookhaven Ave. Bldg. NWS-1
Upton, NY 11973
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Page last modified: 2-Nov-2020 7:30 PM
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