NAPA RIVER NEAR ST HELENA (STH)Elevation: 195' · NAPA R basin · Operator: US Geological Survey
Datum 0 = 193.21' NGVD
River Stage Definitions: Monitor stage 13.0' Flood stage 16.5' Peak Stage of Record 18.5' on 02/17/1986
Warning: Levels identified as "guidance" have significant uncertainty
due to future weather and/or reservoir regulation and are provided for planning purposes only.
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Russian/Napa River river forecast bulletin.