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Local Info
Critical Stages
16' - Action18' - Flood20' - Moderate Flood22' - Major Flood
Napa River - Gauge SHEC1
St. Helena, CA
Lat: 38.51N, Lon: 122.45W
 
Latest Observation
 Updated: 10:45 PM PDT 10/6/25
Stage:0.47 ft
Flow:-999 kcfs*
* Thousand cubic feet per second
Forecast
hydrograph
Flood Impacts
Historical Crests
Historical crest information is not available.

Data provided by NOAA Advanced Hydrologic Prediction Service

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