Little Floyd River near Sanborn, IA
River level and flood forecast · OBrien County
Normal83.1 ftas of Mon 2:15 PM
The river is 3.9 ft below flood stage (87 ft).
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 | 96 ft |
| Moderate flood stage | 93 ft |
| Flood stage | 87 ft |
| Action stage | 85 ft |
| Record crest (June 22, 2024) | 90.56 ft |
What floods at each level
From the National Weather Service, highest first.
- 95 ftHighway 18 will begin to flood to the west of the bridge.
- 94 ftPierce Ave just north of Hwy 18 may begin to flood.
- 93 ftWater reaches the bottom of the bridge on Monroe Ave and the lowest portions of Monroe Ave near 340th may begin to flood.
- 91.5 ftThe lowest portions of Pierce Ave south of Hwy 18 begin to flood.
- 87 ftMinor flooding of crop and pasture land begins.
- 85 ftThe lower banks and ditches near the gage location on Hwy 18 begin to overflow
Highest crests on record
- 90.56 ft — June 22, 2024
- 89.82 ft — June 14, 2018
- 89.78 ft — July 22, 2010
- 89.38 ft — June 12, 1994
- 89.21 ft — May 26, 2013
Recent crests: 84.97 ft (July 30, 2025) · 90.56 ft (June 22, 2024) · 84.53 ft (May 31, 2023) · 86.79 ft (May 25, 2020) · 87.84 ft (March 13, 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 (LFSI4); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.