Arkansas River at Derby, KS
River level and flood forecast · Sedgwick County
Normal0.7 ftas of Mon 3 PM
The river is 11.3 ft below flood stage (12 ft).
Flow: 226 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 | 16.2 ft |
| Moderate flood stage | 15 ft |
| Flood stage | 12 ft |
| Action stage | 10 ft |
| Record crest (November 2, 1998) | 16.6 ft |
What floods at each level
From the National Weather Service, highest first.
- 23.5 ftTop of levee system.
- 17.5 ftFlood waters spread more over the east bank along with vast flooding of agricultural fields.
- 16.2 ftWidespread flooding of low-lying areas and agricultural areas will result. Residents south of Tucker Lane may see flood waters impacting homes.
- 15.5 ftTucker Lane on the downstream west bank of the river will be covered with 1 foot of water. Homes south of Tucker Lane begin to experience minor basement flooding. More agricultural fields will be flooded.
- 15 ftFlooding of agricultural areas will occur. Flood waters begin to flow across Washington Street on the west side of the river bridge and over Tucker Lane on the downstream right bank of river.
- 12 ftThe river will be out of its main channel and expand to a width near 600 feet wide. Expect flooding of low lying areas around the river. The Derby Park facility on the downstream east bank of the Market St bridge is inundated.
- 11.6 ftThe river starts to overflow its banks.
Highest crests on record
- 16.6 ft — November 2, 1998
- 16.19 ft — July 15, 1993
- 16.08 ft — May 9, 1993
- 15.87 ft — November 1, 1979
- 15.53 ft — May 25, 2019
Recent crests: 11.53 ft (June 26, 2026) · 10.14 ft (June 19, 2025) · 12.1 ft (June 3, 2025) · 11.13 ft (June 1, 2022) · 7.43 ft (June 27, 2021)
Up and down the river, and nearby
- UpstreamArkansas River near Haven, KS
- DownstreamArkansas River near Mulvane, KS
- Ninnescah River near Peck, KS
- Cowskin Creek at Wichita 119th St, KS
- Whitewater River (KS) at Augusta, KS
- Arkansas River at Oxford, KS
- Slate Creek (KS) at Wellington, KS
- Whitewater River (KS) near Towanda, KS
- Little Arkansas River near Sedgwick, KS
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (DRBK1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.