New York FloodWatch

This map, (from USGS's WaterWatch Web site), shows the location of sites where the water level is currently at or above flood stage (depicted as a black triangle) or at high flow (depicted as blue circles) The high flow conditions are expressed as percentiles that compare the current (i.e., within the past several hours) instantaneous flow value to historical daily mean flow values for all days of the year. Flood conditions may be more extensive than shown because the National Weather Service (NWS) has not identified a flood stage at all USGS sites. The most complete depiction of sites at or above flood stage is on the NWS River Conditions Map.
USGS Flood Inundation Maps , along with Internet information regarding current stage from the USGS streamgage, provide emergency management personnel and residents with information that is critical for flood-response activities, such as evacuations and road closures, as well as for post-flood recovery efforts.

New York FloodWatch

• Map: Flood and high flows


• sample stage forecast:



• sample peak stages:    


• Data table: Locations above flood stages
• Recent flood and high-flow conditions
• Current streamflow conditions (GoogleMap)

Flood Information

• USGS Flood Inundation Maps
• USGS Flood Gateway site
• The 100-year flood
• Flood fact sheet (2 Mb PDF)
• Flood FAQs
• Large Floods in the United States
• How much water flows during a storm?

Flood Links

• Current Flood Warnings NWS/NOAA
• National Weather Service Flood Guidance
• NWS Recent Precipitation
• NOAA's Flood Safety site
• NOTICE (09/08/2011) -- Remnants of Tropical Storm Lee Cause record Flooding in the Susquehanna River Basin
• NOTICE (09/01/2011) -- Tropical Storm Irene
• FLOODING (4/27/2011) A total of 3 to 5 inches of warm rain combined with significant snowmelt to produce widespread flooding in northeastern New York April 27 – May 2, 2011. Provisional flood frequencies prepared in cooperation with the New York State Department of Transportation, are listed here. For additional information contact Jerry Butch, Hydrologist at the USGS New York Water Science Center (518-285-5673 or gkbutch@usgs.gov).
• FLOODING (10/01/2010) Remnants of Tropical Storm Nicole caused flooding in Eastern New York on Oct.1, 2010. Provisional flood frequencies prepared in cooperation with the New York State Department of Transportation, are listed here. For additional information contact Jerry Butch, Hydrologist at the USGS New York Water Science Center (518-285-5673 or gkbutch@usgs.gov).