Pecatonica River at Martintown, WI
River level and flood forecast · Green County
The river is 7.1 ft below flood stage (13.5 ft).
Flow: 844 cubic feet per second (USGS).
River camera
Watch the time-lapse
Camera by the U.S. Geological Survey. Most take a picture every hour, some every few minutes; many stop at night.
The last 7 days and the forecast
NWS forecast issued Thu, Oct 1, 10:18 AM. Forecasts change as rain falls and as upstream water arrives.
Get flood alerts for this river
An email when the National Weather Service forecasts Pecatonica River at Martintown to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 21 ft |
| Moderate flood stage | 18 ft |
| Flood stage | 13.5 ft |
| Action stage | 9.5 ft |
| Record crest (March 16, 2019) | 22.41 ft |
What floods at each level
From the National Weather Service, highest first.
- 24 ftSome homes in the Martintown area have floodwaters in their first floors sustaining major damage. Martintown Road and West River Road are flooded. Upstream in Browntown, Hwy 11, Highway MM and West Indies Road are flooded. Highway 73 is flooded about 1 mile downstream in Winslow Illinois.
- 23 ftSome homes in the Martintown area have floodwaters in their first floors sustaining major damage. Martintown Road and West River Road in Martintown are flooded. Upstream in Browntown, Hwy 11, Highway MM and West Indies Road are flooded. Highway 73 downstream in Winslow Illinois is flooded.
- 22 ftSome homes in the Martintown area have floodwaters in their basements and first floors sustaining major damage. Martintown Road and West River Road in Martintown are flooded. Upstream in Browntown, Hwy 11, Highway MM and West Indies Road are flooded. Highway 73 about 1 mile downstream in Winslow Illinois is flooded.
- 21 ftSome homes in the Martintown area have floodwaters in their basements and first floors. Martintown Road and West River Road in the Martintown area are flooded. Hwy 11, Highway MM and West Indies Road upstream in Browntown are flooded. Highway 73 about 1 mile downstream in Winslow Illinois is flooded.
- 19.5 ftSome homes in Martintown area have floodwaters in their basements and first floors, Highways MM and West Indies Road upstream in the Browntown area are flooded. Martintown Road and West River Road in Martintown are flooded as is Highway 73 about 1 mile downstream in Winslow Illinois.
- 18.5 ftSome homes in the Martintown area have floodwaters in their basements and first floors. Martintown Road and West River Road are flooded. Upstream in Browntown, Highway MM and West Indies Road are flooded. About 1 mile downstream in Winslow, Illinois, Highway 73 is flooded.
- 18 ftFloodwaters are in the basements of some homes in the Martintown area. Martintown Road and West River Road are flooded. Upstream in Browntown, Highway MM and West Indies Road are flooded. About 1 mile downstream in Winslow, Illinois, Highway 73 is flooded.
- 17.5 ftFloodwaters are in the back years of some homes in the Martintown area. Martintown Road and West River Road are flooded. Upstream in Browntown, Highway MM and West Indies Road are flooded. About 1 mile downstream in Winslow Illinois, Highway 73 is flooded.
- 16.5 ftFloodwaters are in the back yards of some homes in Martintown. Floodwaters affect Martintown Road and West River Road in the Martintown area. Upstream in Browntown, floodwaters affect Highway MM and West Indies Road.
- 16 ftFloodwaters are in the back yard of at least one home in Martintown. Floodwaters affect Martintown Road and West River Road in the Martintown area. Upstream in Browntown, floodwaters affect Highway MM and West Indies Road.
- 13.5 ftFloodwaters affect Martintown Road and West River Road in the Martintown area. Upstream in Browntown, floodwaters affect highway MM and West Indies Road.
- 13 ftTillable farmland is flooded.
- 11 ftThere is minor lowland flooding.
- 9.5 ftThere is minor lowland flooding.
Highest crests on record
- 22.41 ft — March 16, 2019
- 21.46 ft — July 1, 1969
- 20.98 ft — July 1, 1990
- 20.8 ft — March 27, 1916
- 20.57 ft — March 24, 1975
Recent crests: 13.7 ft (July 20, 2024) · 13.47 ft (March 4, 2023) · 12.67 ft (August 8, 2022) · 11.66 ft (March 12, 2021) · 15.37 ft (October 18, 2019)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (MTNW3); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.