Nacimiento River at Nacimiento Reservoir
California — Water Level & Flood Stage
Located in San Luis Obispo County, California on the Nacimiento River. Live water level data from USGS gauge 11149300, updated every 15 minutes.
Current Water Level
Gage Height
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Streamflow
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Last Reading
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Flood Stages
Minor Flood
825 ft
Action Stage
800 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
7-Day Water Level Chart
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About This Gauge
USGS Site
NWS LID
NACC1
River
Nacimiento River
County
San Luis Obispo, CA
Coordinates
35.7578°N, 120.8836°W
Get Flood Alerts for Nacimiento 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 Nacimiento River at Nacimiento Reservoir?
The Nacimiento River at Nacimiento Reservoir gauge is maintained by USGS (site 11149300) 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 Nacimiento River at Nacimiento Reservoir?
The NWS-defined flood stage for Nacimiento River at Nacimiento Reservoir is 825 feet. Action stage begins at 800 feet. Moderate flooding starts at N/A feet, and major flooding at N/A feet.
How do I get alerts when Nacimiento River rises?
Download StormCast free on Google Play, go to River Gauges, and add Nacimiento River at Nacimiento Reservoir to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category — even when your screen is off.
Where is the Nacimiento River at Nacimiento Reservoir gauge located?
The gauge is located in San Luis Obispo County, California at coordinates 35.7578°N, 120.8836°W. USGS site number: 11149300. Data is provided by the U.S. Geological Survey and the National Weather Service.
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Source & Notes
Data provided by: United States Geological Survey, Observations courtesy of U.S. Geological Survey