Major Flood
40 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
28 ft
Minor Flood
26 ft
Action Stage
21 ft
What Floods at Each Level
52 ft
Water reaches the road surface of State Highway 139 bridge.
45 ft
Water reaches the bottom of State Highway 139 bridge.
44 ft
Water reaches the bottom of the Burlington Northern Railroad bridge which is located just upstream from the State Highway 139 bridge.
40 ft
Homes in northeast Sumner begin to flood.
37 ft
State Highway 139 floods a half mile east of Sumner.
28 ft
Rural roads are under water.
26 ft
Rural land adjacent to the river is flooded.
23 ft
Bottomland 1 to 2 miles south of the gage begins to flood.
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 |
|---|---|---|
| Jul 9, 1993 | 42.52 ft | — |
| May 30, 2019 | 41.35 ft | — |
| Jun 27, 2008 | 40.02 ft | — |
About This Gauge
USGS Site
NWS LID
SNZM7
River
Grand River
County
Livingston, MO
Coordinates
39.6400°N, 93.2737°W
Get Flood Alerts for Grand 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 Grand River near Sumner?
The Grand River near Sumner gauge is maintained by USGS (site 06902000) 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 Grand River near Sumner?
The NWS-defined flood stage for Grand River near Sumner is 26 feet. Action stage begins at 21 feet. Moderate flooding starts at 28 feet, and major flooding at 40 feet.
How do I get alerts when Grand River rises?
Download StormCast free on Google Play, go to River Gauges, and add Grand River near Sumner 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 Grand River near Sumner gauge located?
The gauge is located in Livingston County, Missouri at coordinates 39.6400°N, 93.2737°W. USGS site number: 06902000. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Grand River
On This River
More Resources
Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- Stage may be affected by ice.
- 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.
- 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.