First published Sep 19, 2026, 9:36:15 AM UTC · Last updated Sep 19, 2026, 9:36:15 AM UTC

Small Craft Advisory issued by NWS San Francisco

National Weather Service office in San Francisco issued a Small Craft Advisory on September 19 (issued 02:33 AM PDT / 2026-09-19T09:33:00Z) affecting local coastal waters near San Francisco, California. Advisory effective until 03:00 AM PDT the same day per the alert title.

At a glance

Region: California
Advisory effective until 03:00 AM PDT the same day per the alert title.

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Why it matters

Small craft advisories indicate hazardous wind and wave conditions that can endanger recreational and commercial small vessels, impact nearshore marine operations, and pose safety risks to mariners and shoreline activities.

Location

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Generated scores

Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.

Confidence: 9/10How certain the assessment is based on the clarity and evidence in the cited reporting.
Geographic reach: 3/10How widely the event reaches, from a local area (1) to worldwide impact (10).
Global importance: 5/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 4/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Urgency: 7/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Primary official sources

Small Craft Advisory issued September 19 at 2:33AM PDT until September 19 at 3:00AM PDT by NWS San Francisco CA

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