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Small Craft Advisory issued by NWS San Francisco (Sep 19–21, 2026)

Reported by U.S. National Weather Service Alerts NWS

The National Weather Service San Francisco issued a Small Craft Advisory on September 19 at 8:24 AM PDT in effect until September 21 at 9:00 AM PDT.

At a glance

  • Region: California
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Why it matters

Small Craft Advisories indicate hazardous marine conditions for small vessels along the affected coastal waters; mariners and coastal travelers should exercise caution and check local guidance.

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
4/10
Urgency
8/10

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Small Craft Advisory issued by NWS San Francisco (Sep 19–21, 2026) | Planet Briefing