Major Flood
942 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: PTNM5). 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
939 ft
Minor Flood
937 ft
Action Stage
933 ft
What Floods at Each Level
938 ft
Some city streets are flooded near the river.
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 |
|---|---|---|
| Mar 25, 1950 | 942.4 ft | — |
| Jul 10, 1981 | 942 ft | — |
| Jun 9, 2008 | 941.67 ft | — |
About This Gauge
NWS LID
PTNM5
River
South Branch Root River
County
Fillmore, MN
Coordinates
43.6672°N, 92.0836°W
Get Flood Alerts for South Branch Root 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 South Branch Root River at Preston?
The South Branch Root River at Preston 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 South Branch Root River at Preston?
The NWS-defined flood stage for South Branch Root River at Preston is 937 feet. Action stage begins at 933 feet. Moderate flooding starts at 939 feet, and major flooding at 942 feet.
How do I get alerts when South Branch Root River rises?
Download StormCast free on Google Play, go to River Gauges, and add South Branch Root River at Preston 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 South Branch Root River at Preston gauge located?
The gauge is located in Fillmore County, Minnesota at coordinates 43.6672°N, 92.0836°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on South Branch Root River
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Source & Notes
Data provided by: Observations courtesy of NWS Volunteer Observers
- River forecasts for this location take into account past and future precipitation. The stages/flows that will occur may be different if future rainfall is different than forecast.