North Sulphur River near Cooper, TX
River level and flood forecast · Lamar County
Normal0.3 ftas of Mon 3 PM
The river is 29.7 ft below flood stage (30 ft).
Forecast to hold near 0.3 ft through Sat, Oct 17, 7 AM.
Flow: 0 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 10:13 AM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 37 ft |
| Moderate flood stage | 34 ft |
| Flood stage | 30 ft |
| Action stage | 28 ft |
| Record crest (October 19, 1971) | 36.16 ft |
What floods at each level
From the National Weather Service, highest first.
- 37 ftMajor flooding will occur along the river. Agriculture and livestock near the river will be impacted.
- 34 ftModerate flooding will occur along the river. Agriculture and livestock near the river will be impacted.
- 30 ftMinor flooding will occur along the river. Agriculture and livestock near the river will be impacted.
Highest crests on record
- 36.16 ft — October 19, 1971
- 34.76 ft — May 13, 1982
- 34.76 ft — October 19, 2002
- 34.75 ft — March 19, 2008
- 34.3 ft — December 10, 1971
Recent crests: 32.14 ft (January 30, 2025) · 32.97 ft (February 8, 2023) · 30.61 ft (June 7, 2021) · 32.69 ft (March 18, 2020) · 30.7 ft (May 30, 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 (CPPT2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.