Major Flood
12 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
10 ft
Minor Flood
8 ft
Action Stage
8 ft
What Floods at Each Level
12 ft
Major flood stage. Widespread and significant flooding along the South Loup River. Most of Old Mill Park and the road into Old Mill Park will be flooded. Without protection, homes along the river may begin to experience impacts.
10 ft
Flooding may occur in portions of Old Mill Park closest to the tennis courts.
9.5 ft
Moderate flood stage. Water spreads out significantly along the lower banks. Some flooding is possible on the west side of Arnold, upstream from Old Mill Park. Widespread flooding of agricultural land.
8 ft
At 8.0 feet, minor flooding occurs along the South Loup River, mainly west of Arnold.
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 12, 2019 | 9.92 ft | 1,430 cfs |
| Jun 12, 2010 | 9.14 ft | 973 cfs |
| Aug 15, 2017 | 9.12 ft | 740 cfs |
About This Gauge
USGS Site
NWS LID
ARSN1
River
South Loup River
County
Custer, NE
Coordinates
41.4228°N, 100.2033°W
Get Flood Alerts for South Loup 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 Loup River at Arnold?
The South Loup River at Arnold gauge is maintained by USGS (site 06781600) 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 Loup River at Arnold?
The NWS-defined flood stage for South Loup River at Arnold is 8 feet. Action stage begins at 8 feet. Moderate flooding starts at 10 feet, and major flooding at 12 feet.
How do I get alerts when South Loup River rises?
Download StormCast free on Google Play, go to River Gauges, and add South Loup River at Arnold 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 Loup River at Arnold gauge located?
The gauge is located in Custer County, Nebraska at coordinates 41.4228°N, 100.2033°W. USGS site number: 06781600. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on South Loup River
On This River
Downstream: South Loup River at Pressey
More Resources
Source & Notes
Data provided by: Observations courtesy of the USGS
- Gauge reading may be affected by ice.