Mongaup River at Mongaup Valley, NY
River level and flood forecast · Sullivan County
Normal3.5 ftas of Mon 3:30 PM
The river is 10.5 ft below flood stage (14 ft).
Flow: 139 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 7 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 15 ft |
| Moderate flood stage | 14.7 ft |
| Flood stage | 14 ft |
| Action stage | 12 ft |
| Record crest (August 19, 1955) | 15.22 ft |
What floods at each level
From the National Weather Service, highest first.
- 12 ftMinor Field Flooding Begins
Highest crests on record
- 15.22 ft — August 19, 1955
- 13.47 ft — April 3, 2005
- 12.8 ft — March 29, 2005
- 11.94 ft — September 18, 2004
- 6.73 ft — September 23, 2003
Recent crests: 13.47 ft (April 3, 2005) · 12.8 ft (March 29, 2005) · 11.94 ft (September 18, 2004) · 6.73 ft (September 23, 2003) · 4.38 ft (March 9, 1995)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (MGPN6); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.