Major Flood
28 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: CCJC1). 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
25 ft
Minor Flood
19.5 ft
Action Stage
17.5 ft
What Floods at Each Level
28 ft
Major Flood Stage. Water is 3 feet deep on floodplain. Major roadway flooding in the area, including Highway 12/121.
25 ft
Moderate Flood Stage. Flood waters are on the floodplain. Old Sonoma Road flooded. Old Sonoma Highway and Highway 12/121 likely flooded or in jeopardy just downstream.
19.5 ft
Minor Flood Stage. Backwatering begins at Old Sonoma Road bridge. Water level is reaching elevation of bridge, with possible overflow. NWS will issue a Flash Flood Warning if not yet already issued.
17.5 ft
Monitor Stage. Water is 2 feet below backwatering at Old Sonoma Road bridge. NWS will issue a Flash Flood Watch if not already issued.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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About This Gauge
NWS LID
CCJC1
River
Carneros Creek
County
Napa, CA
Coordinates
38.2567°N, 122.3403°W
Get Flood Alerts for Carneros Creek
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 Carneros Creek at Old Sonoma Road?
The Carneros Creek at Old Sonoma Road 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 Carneros Creek at Old Sonoma Road?
The NWS-defined flood stage for Carneros Creek at Old Sonoma Road is 19.5 feet. Action stage begins at 17.5 feet. Moderate flooding starts at 25 feet, and major flooding at 28 feet.
How do I get alerts when Carneros Creek rises?
Download StormCast free on Google Play, go to River Gauges, and add Carneros Creek at Old Sonoma Road 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 Carneros Creek at Old Sonoma Road gauge located?
The gauge is located in Napa County, California at coordinates 38.2567°N, 122.3403°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Resources
Source & Notes
Data provided by: Napa County