SEV2 — MajorCLOSEDWeatherUnverified7h ago

Severe SIGMET over SFO (San Francisco)

Turbulence · US SIGMET OSCAR 1. Valid 07:38–11:38 UTC, up to FL360.

Impact Summary

Air — Turbulence · US SIGMET OSCAR 1. Valid 07:38–11:38 UTC, up to FL360.

Domain
Weather
Region
SFO (San Francisco), US
Opened By
desk-rules
Nov 13, 2026, 10:15 AM UTC
Event Cluster
1 event
OVIX Score
7.0
Closed
desk-rules(cleared:expired)
Nov 13, 2026, 12:00 PM UTC

Timeline4

⚠
Incident openedby desk-rulesNov 13, 2026, 10:15 AM UTC
Opened by rule sigmet_hub v2: Turbulence · US SIGMET OSCAR 1. Valid 07:38–11:38 UTC, up to FL360.
↻
Revalidatedby watchkeeperNov 13, 2026, 10:30 AM UTC
Revalidated: no new activity. Next reval in 24h.
●
alertedby travel-alertsNov 13, 2026, 11:31 AM UTC
Alerted by email
✖
Incident closedby desk-rulesNov 13, 2026, 12:00 PM UTC
Cleared: SIGMET validity ended 11:38 UTC and the rule has been quiet 0.7 h.

Evidence / Why this?

Traced to source — read-only
Evidence is not yet available for this incident. Older incidents predate the traceability layer; newly declared incidents will show why they were declared, why their severity was set, geo provenance, and their sources here.

Affected Regions

US
OPENED BY THE DESK rule sigmet_hub:v2 · basis sigmet · affects air. How the rules work. Not an incident? An admin can close it below; the alert email carries a one-tap close.