Major Flood
1328 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: SPII4). 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
1324 ft
Minor Flood
1322 ft
Action Stage
1321 ft
What Floods at Each Level
1332 ft
The Hwy 18 bridge is overtopped as is the bridge on 190th Ave
1330 ft
Water reaches the bottom of the bridge on Hwy 18 at the gage location. Water nears the feedhorn of the automated sensor and thus river level data may be lost.
1328 ft
Water begins to approach the low spots of Hwy 18 and 200th Ave south of Hwy 18 begins to flood.
1326 ft
200th Ave north of Hwy 18 begins to flood.
1322.5 ft
Most banks begin to be overtopped and overspill into nearby agricultural land.
1321 ft
The lowest banks begin to overflow.
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 21, 2024 | 1328.17 ft | — |
| Jun 24, 2018 | 1326.6 ft | — |
| Mar 17, 2019 | 1325.5 ft | — |
About This Gauge
NWS LID
SPII4
River
Little Sioux River
County
Clay, IA
Coordinates
43.1842°N, 95.1914°W
Get Flood Alerts for Little Sioux 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 Little Sioux River near Spencer / Highway 18?
The Little Sioux River near Spencer / Highway 18 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 Little Sioux River near Spencer / Highway 18?
The NWS-defined flood stage for Little Sioux River near Spencer / Highway 18 is 1322 feet. Action stage begins at 1321 feet. Moderate flooding starts at 1324 feet, and major flooding at 1328 feet.
How do I get alerts when Little Sioux River rises?
Download StormCast free on Google Play, go to River Gauges, and add Little Sioux River near Spencer / Highway 18 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 Little Sioux River near Spencer / Highway 18 gauge located?
The gauge is located in Clay County, Iowa at coordinates 43.1842°N, 95.1914°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Little Sioux River
On This River
More Resources
Source & Notes
Data provided by: Observations courtesy of Iowa Flood Center
- No forecasts are available for this location
- Gauge reading may be affected by ice.