Major Flood
17.5 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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This is an NWS forecast point (LID: GRFN1). Live data may be limited. View on NWS AHPS →
FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
16 ft
Minor Flood
11 ft
Action Stage
9 ft
What Floods at Each Level
17.5 ft
The County Road 8 bridge at the gage site is overtopped
16 ft
County Road 8 begins to flood
11 ft
Widespread flooding of pastures and fields begins along this stretch of the river.
Impact statements from the National Weather Service, describing what typically happens at each water level.
Low-Water Impacts
5 ft
Stage needed to inundate designated Gulf Sturgeon critical habitat below Jim Woodruff Lock and Dam.
3 ft
Temporary (not sustainable) operating level for of Scholz Power Plant
What happens as water levels drop, per the National Weather Service.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Aug 10, 2025 | 9.05 ft | 516 cfs |
| Jul 15, 2025 | 8.54 ft | 470 cfs |
| Jul 9, 2024 | 8.41 ft | 461 cfs |
About This Gauge
NWS LID
GRFN1
River
West Fork Big Blue River
County
Fillmore, NE
Coordinates
40.6816°N, 97.6912°W
Get Flood Alerts for West Fork Big Blue 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 West Fork Big Blue River near Grafton ?
The West Fork Big Blue River near Grafton gauge is maintained by USGS 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 West Fork Big Blue River near Grafton ?
The NWS-defined flood stage for West Fork Big Blue River near Grafton is 11 feet. Action stage begins at 9 feet. Moderate flooding starts at 16 feet, and major flooding at 17.5 feet.
How do I get alerts when West Fork Big Blue River rises?
Download StormCast free on Google Play, go to River Gauges, and add West Fork Big Blue River near Grafton 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 West Fork Big Blue River near Grafton gauge located?
The gauge is located in Fillmore County, Nebraska at coordinates 40.6816°N, 97.6912°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on West Fork Big Blue River
On This River
Downstream: West Fork Big Blue River near Dorchester
More Resources
Source & Notes
Data provided by: Observations courtesy of the Nebraska DWEE