Blue River near Stanley, KS
River level and flood forecast · Johnson County
Normal3.7 ftas of Mon 2:45 PM
The river is 12.3 ft below flood stage (16 ft).
Flow: 5 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 | 30 ft |
| Moderate flood stage | 18 ft |
| Flood stage | 16 ft |
| Action stage | 10 ft |
| Record crest (August 22, 2017) | 21.7 ft |
What floods at each level
From the National Weather Service, highest first.
- 37.1 ftWater overtops the U.S. Highway 69 bridge over the Blue River around 3 miles south of Stanley.
- 32.8 ftWater reaches the bottom of the U.S. Highway 69 bridge over the Blue River around 3 miles south of Stanley.
- 18 ftFlood waters enter the yards of a few homes along the river and threaten rural roads.
- 16 ftFarmland adjacent to the Blue River floods.
Highest crests on record
- 21.7 ft — August 22, 2017
- 20.51 ft — May 15, 1990
- 20.19 ft — July 27, 2017
- 20.12 ft — May 19, 2004
- 20.1 ft — July 10, 1993
Recent crests: 16.59 ft (May 28, 2020) · 17.51 ft (October 8, 2018) · 21.7 ft (August 22, 2017) · 20.19 ft (July 27, 2017) · 18.31 ft (May 31, 2013)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (STAK1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.