Kansas River at Manhattan, KS

River level and flood forecast · Riley County

Normal8.8 ftas of Mon 3 PM

The river is 9.2 ft below flood stage (18 ft).

The last 7 days and the forecast

51015202530TueWedThuFriSatSunMonAction 14 ftFlood 18 ftModerate 26 ftNowObserved (ft)NWS forecast

NWS forecast issued Sat, Oct 3, 9:27 AM. Forecasts change as rain falls and as upstream water arrives.

Flood stages

Major flood stage42 ft
Moderate flood stage26 ft
Flood stage18 ft
Action stage14 ft
Record crest (June 1, 1844)40 ft

What floods at each level

From the National Weather Service, highest first.

  • 36 ftFlood waters reach the top of levee protecting the city of Manhattan.
  • 28 ftFlood waters reach the top of the levee on the south bank of the river.
  • 26 ftHunter's Island begins to flood.
  • 18 ftLow lands along the river flood.

Highest crests on record

  1. 40 ft — June 1, 1844
  2. 33.39 ft — July 13, 1951
  3. 29.92 ft — July 25, 1993
  4. 29.84 ft — July 15, 1951
  5. 26.76 ft — June 29, 1951

Recent crests: 7.52 ft (May 16, 2023) · 12.09 ft (June 8, 2022) · 16.33 ft (May 27, 2021) · 16.39 ft (May 25, 2020) · 18.13 ft (August 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 (MHKK1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.