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Hydrograph River at a Glance Download
Oswegatchie River near Ogdensburg Total Discharge (kcfs)Highest Forecast: 4.5 kcfs 2:00PM Apr 18, 2024Highest Forecast: 4.5 kcfs 8:00PM Apr 18, 2024Forecast: 4.4 kcfs 2:00AM Apr 19, 2024Forecast: 4.4 kcfs 8:00AM Apr 19, 2024Forecast: 4.4 kcfs 2:00PM Apr 19, 2024Forecast: 4.3 kcfs 8:00PM Apr 19, 2024Forecast: 4.2 kcfs 2:00AM Apr 20, 2024Forecast: 4.1 kcfs 8:00AM Apr 20, 2024Forecast: 4 kcfs 2:00PM Apr 20, 2024Forecast: 3.9 kcfs 8:00PM Apr 20, 2024Forecast: 3.8 kcfs 2:00AM Apr 21, 2024Forecast: 3.8 kcfs 8:00AM Apr 21, 2024OGSN6(plotting QTIRZ) Graph Created (12:01PM Apr 18, 2024)Forecast (issued 11:25AM Apr 18)
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
NOTE: Gauge reading may be affected by ice. Forecast flows are unadjusted for ice.

NOTE: Forecasts for the Oswegatchie River near Ogdensburg are issued routinely year-round.

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Upstream Gauge - near Heuvelton Upstream Gauge
Flood Categories (in KCFS)
Not Available

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.
Zoom Level:14
KML Image
Gauge LocationGauge Map Marker
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.
About This Location Collapse

Latitude: 44.631944° N, Longitude: 75.476111° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS flow Not Available Not Available Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
(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 NULL NULL Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  
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.

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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.
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