Little Platte River at Smithville, MO
River level and flood forecast · Clay County
Normal12.2 ftas of Mon 2:30 PM
The river is 14.8 ft below flood stage (27 ft).
Flow: 15 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 | 35 ft |
| Moderate flood stage | 30.5 ft |
| Flood stage | 27 ft |
| Action stage | 21 ft |
| Record crest (July 20, 1965) | 46.49 ft |
What floods at each level
From the National Weather Service, highest first.
- 38 ftSome homes on Bridge Street experience several feet of water on their first floor.
- 35 ftFlood water threatens apartments near the river. Evacuation of residents may be necessary.
- 34 ftBusinesses on Bridge Street begin to flood.
- 30.5 ftBridge Street, Main Street, State Route DD, and State Route F begin to flood.
Highest crests on record
- 46.49 ft — July 20, 1965
- 39.72 ft — May 18, 1974
- 37.38 ft — June 1, 1947
- 36.44 ft — August 13, 1982
- 36.39 ft — October 11, 1973
Recent crests: 29.09 ft (April 27, 2026) · 27.52 ft (April 28, 2024) · 27.93 ft (May 31, 2022) · 28.21 ft (June 23, 2019) · 29.06 ft (May 29, 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 (SMHM7); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.