Niobrara River at Niobrara, NE
River level and flood forecast · Knox County
Normal32.1 ftas of Mon 2:15 PM
The river is 4.9 ft below flood stage (37 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 | 41 ft |
| Moderate flood stage | 38 ft |
| Flood stage | 37 ft |
| Action stage | 33 ft |
| Record crest (March 14, 2019) | 41.64 ft |
What floods at each level
From the National Weather Service, highest first.
- 45 ftThe USGS gage house begins to be impacted.
- 44 ftHighway 12 begins to flood.
- 39 ftA river access road upstream of the bridge begins to flood.
- 38 ftWater reaches the bottom of the Highway 12 bridge.
- 33 ftOverbank flooding begins.
Highest crests on record
- 41.64 ft — March 14, 2019
- 34.91 ft — July 22, 2010
- 34.29 ft — February 16, 2011
- 34.02 ft — June 22, 2024
- 33.75 ft — June 10, 2020
Recent crests: 33.32 ft (December 5, 2025) · 34.02 ft (June 22, 2024) · 33.02 ft (October 13, 2023) · 33.38 ft (March 2, 2022) · 32.81 ft (July 14, 2021)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (NRBN1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.