East Fork Trinity River at McKinney, TX
River level and flood forecast · Collin County
Normal2.3 ftas of Mon 2:30 PM
The river is 13.7 ft below flood stage (16 ft).
Flow: 42 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 6 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 23 ft |
| Moderate flood stage | 20 ft |
| Flood stage | 16 ft |
| Action stage | 14 ft |
| Record crest (April 1, 1942) | 28 ft |
What floods at each level
From the National Weather Service, highest first.
- 25 ftMajor out of bank flooding is expected. Flood waters will overflow the road. Major flooding will occur to agricultural land and rural roads in area.
- 23 ftMajor flooding is expected near the gauge with farm and ranch land flooded along the river.
- 22 ftModerate out of bank flooding will occurr near the river. Farm and ranch land will flood.
- 20 ftModerate out of bank flooding will occur along the river. Farm and ranch land will flood, along with a few rural roads.
- 16 ftMinor out of bank flooding will begin along the river.
Highest crests on record
- 28 ft — April 1, 1942
- 22.17 ft — May 13, 1982
- 21.35 ft — May 3, 1990
- 20.73 ft — December 26, 1987
- 20.39 ft — November 15, 1994
Recent crests: 17.1 ft (June 6, 2024) · 16.55 ft (June 3, 2024) · 16.36 ft (May 31, 2024) · 16.1 ft (May 5, 2024) · 16.56 ft (April 29, 2024)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (MCKT2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.