Major Flood
16 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: SUUC1). 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
14 ft
Minor Flood
11.6 ft
Action Stage
9 ft
What Floods at Each Level
16 ft
Major flood stage. Bridge crossing backwatered and Pope Street flooded. Several feet of standing water on surrounding floodplain.
14 ft
Moderate flood stage. Floodplain fully inundated on both sides of channel. The left bank side (as looking downstream) is under several feet of water.
11.6 ft
Minor flood stage. Floodplain on left bank side (as looking downstream) inundated. Allison Avenue storm drain backwatered to street level. NWS will issue a Flash Flood Warning if not already issued.
9 ft
Monitor stage. Allison Avenue storm drain outlet fully submerged. NWS may issue a Flash Flood Watch is not yet 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
SUUC1
River
Sulphur Creek
County
Napa, CA
Coordinates
38.5053°N, 122.4639°W
Get Flood Alerts for Sulphur 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 Sulphur Creek at Pope Street?
The Sulphur Creek at Pope Street 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 Sulphur Creek at Pope Street?
The NWS-defined flood stage for Sulphur Creek at Pope Street is 11.6 feet. Action stage begins at 9 feet. Moderate flooding starts at 14 feet, and major flooding at 16 feet.
How do I get alerts when Sulphur Creek rises?
Download StormCast free on Google Play, go to River Gauges, and add Sulphur Creek at Pope Street 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 Sulphur Creek at Pope Street gauge located?
The gauge is located in Napa County, California at coordinates 38.5053°N, 122.4639°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Sulphur Creek
More Resources
Source & Notes
Data provided by: Napa County