Major Flood
33 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
27.5 ft
Minor Flood
25 ft
Action Stage
23 ft
What Floods at Each Level
39 ft
Water reaches the bottom of the J64 bridge at the gage site.
33 ft
The top of the levee near the bridge in town is overtopped with flood waters. I-29 is closed south of town.
27.5 ft
State Highway 275 south of the gage may be threatened in several spots.
25 ft
More extensive lowland flooding begins as the parking lot near the gauge begins to experience flooding. In addition, some local farm levees may be overtopped with flood waters.
23 ft
Minor overflows begin within the city limits, however there is no threat to property at this stage.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Jun 16, 1998 | 33.18 ft | 65,100 cfs |
| May 7, 2007 | 32.44 ft | 55,300 cfs |
| Mar 15, 2019 | 31.07 ft | 39,000 cfs |
About This Gauge
USGS Site
NWS LID
HMBI4
River
Nishnabotna River
County
Fremont, IA
Coordinates
40.6012°N, 95.6445°W
Get Flood Alerts for Nishnabotna River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Nishnabotna River above Hamburg?
The Nishnabotna River above Hamburg gauge is maintained by USGS (site 06810000) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Nishnabotna River above Hamburg?
The NWS-defined flood stage for Nishnabotna River above Hamburg is 25 feet. Action stage begins at 23 feet. Moderate flooding starts at 27.5 feet, and major flooding at 33 feet.
How do I get alerts when Nishnabotna River rises?
Download StormCast free on Google Play, go to River Gauges, and add Nishnabotna River above Hamburg to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the Nishnabotna River above Hamburg gauge located?
The gauge is located in Fremont County, Iowa at coordinates 40.6012°N, 95.6445°W. USGS site number: 06810000. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Resources
Source & Notes
Data provided by: Observations courtesy of the USGS
- River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.
- River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.
- Stage may be affected by ice.