Mount Hope River at Warrenville, CT
River level and flood forecast · Windham County
The river is 5.1 ft below flood stage (7 ft).
Flow: 45 cubic feet per second (USGS).
Higher than normal for October 13.
Usual for October 13: 6 to 30 cubic feet per second (the middle half of 86 years).
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.
Get flood alerts for this river
An email when the National Weather Service forecasts Mount Hope River at Warrenville to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 10 ft |
| Moderate flood stage | 8 ft |
| Flood stage | 7 ft |
| Action stage | 6 ft |
| Record crest (September 21, 1938) | 14.5 ft |
What floods at each level
From the National Weather Service, highest first.
- 8.5 ftMajor flooding will occur along the river through Ashford and northern Mansfield. Some homes may experience flooding. A portion of Route 89 may also become impassible north of the Route 89/Route 44 interchange.
- 7 ftMinor flooding will occur to property immediately along the river in Ashford and the north portion of Mansfield.
Highest crests on record
- 14.5 ft — September 21, 1938
- 10.68 ft — July 17, 2021
- 10.41 ft — August 19, 1955
- 10.15 ft — October 15, 2005
- 9.51 ft — January 26, 1978
Recent crests: 8.12 ft (January 10, 2024) · 8.37 ft (December 18, 2023) · 7 ft (December 11, 2023) · 9.22 ft (September 2, 2021) · 10.68 ft (July 17, 2021)
Highest flow on record
6,100 cubic feet per second — July 17, 2021. From the USGS's yearly peaks since 1941.
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (WRNC3); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.