Genesee River at Portageville, NY
River level and flood forecast · Wyoming County
Normal9.1 ftas of Mon 4:17 PM
The river is 9.9 ft below flood stage (19 ft).
Forecast to fall to 8.6 ft by Thu, Oct 15, 8 AM.
Flow: 409 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 11:14 AM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 29 ft |
| Moderate flood stage | 25 ft |
| Flood stage | 19 ft |
| Action stage | 17 ft |
| Record crest (June 23, 1972) | 35.25 ft |
What floods at each level
From the National Weather Service, highest first.
- 29 ftMajor flood, widespread residential, commercial, and agricultural flooding. Heavy damages. Road closures. Possible evacuations.
- 25 ftModerate flood, widespread flooding to agricultural land. Some residential flooding and damages begin. Possible road closures.
- 19 ftFlood stage, river begins to overflow into agricultural lands from Belfast to Letchworth. Little damage to structures.
- 17 ftAction stage, high flows. No flooding.
Highest crests on record
- 35.25 ft — June 23, 1972
- 29.12 ft — January 20, 1996
- 29.12 ft — July 6, 1902
- 25.54 ft — September 29, 1967
- 24.9 ft — May 17, 1916
Recent crests: 20.19 ft (January 13, 2018) · 19.73 ft (January 13, 2017) · 20.65 ft (March 15, 2007) · 24.19 ft (January 8, 1998) · 29.12 ft (January 20, 1996)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (PRTN6); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.