Ashuelot River above West Swanzey, NH
River level and flood forecast · Cheshire County
The river is 5.5 ft below flood stage (11 ft).
Flow: 120 cubic feet per second (USGS).
Lower than normal for October 13.
Usual for October 13: 128 to 326 cubic feet per second (the middle half of 33 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 Ashuelot River above West Swanzey to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 14 ft |
| Moderate flood stage | 12 ft |
| Flood stage | 11 ft |
| Action stage | 10 ft |
| Record crest (July 19, 2021) | 12.89 ft |
What floods at each level
From the National Weather Service, highest first.
- 12 ftIn Winchester, water up to the base of buildings with basements inundated. Water surrounds Dillant Hopkins Airport on the west side in the North Swanzey dependant on backwater from the South Branch.
- 7 ftBackwater along the South Branch can cause flooding along Carlton Road leading to the covered bridge.
- 5.5 ftThe river inundates lower lying areas near the river in swanzey.
Highest crests on record
- 12.89 ft — July 19, 2021
- 10.67 ft — July 17, 2023
- 9.77 ft — March 11, 2024
- 9.01 ft — February 24, 2022
- 5.62 ft — October 9, 2005
Recent crests: 9.77 ft (March 11, 2024) · 10.67 ft (July 17, 2023) · 9.01 ft (February 24, 2022) · 12.89 ft (July 19, 2021) · 4.61 ft (April 17, 2007)
Highest flow on record
6,210 cubic feet per second — October 9, 2005. From the USGS's yearly peaks since 1994.
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (SWAN3); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.