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Small Craft Advisory — NWS San Francisco CA
Original source title
Small Craft Advisory issued September 18 at 8:35PM PDT until September 19 at 3:00AM PDT by NWS San Francisco CA
Reported by U.S. National Weather Service Alerts NWS
The National Weather Service San Francisco issued a Small Craft Advisory beginning Sep 18 8:35 PM PDT (published at 2026-09-19T03:35:00Z) and in effect until Sep 19 3:00 AM PDT. The advisory warns of hazardous marine conditions for small vessels in the San Francisco area during that period.
At a glance
- Region: California
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Why it matters
Small craft should expect hazardous seas and/or winds that increase risk to navigation, recreational boating, and coastal operations. Mariners and coastal travelers should avoid or take precautions during the advisory period.
Location
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Generated scores
Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.
- Confidence
- 9/10
- Geographic reach
- 3/10
- Global importance
- 5/10
- Impact magnitude
- 3/10
- Urgency
- 7/10
Primary official sources
- U.S. National Weather Service Alerts NWSSmall Craft Advisory issued September 18 at 8:35PM PDT until September 19 at 3:00AM PDT by NWS San Francisco CA
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