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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 in San Francisco issued a Small Craft Advisory on Sep 18 at 20:35 PDT (published 2026-09-19T03:35:00Z) in effect through Sep 19 at 03:00 PDT. The advisory notifies mariners and small vessels of hazardous conditions during the stated period.

At a glance

  • Region: California
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Why it matters

Small Craft Advisories indicate conditions that can endanger small boats and affect coastal and marine operations; people planning or conducting maritime travel or work in the San Francisco area should take precautions or delay operations.

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Generated scores

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

Confidence
8/10
Geographic reach
2/10
Global importance
5/10
Impact magnitude
3/10
Urgency
8/10

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