SEV2 — MajorCLOSEDWeatherUnverified9h ago

Severe SIGMET over SYD (Sydney)

Icing (SEV) · YMMM MELBOURNE. Valid 06:30–10:30 UTC, up to FL230.

Impact Summary

Air — Icing (SEV) · YMMM MELBOURNE. Valid 06:30–10:30 UTC, up to FL230.

Domain

Weather

Region

SYD (Sydney), AU

Opened By

desk-rules

Nov 13, 2026, 08:15 AM UTC

Event Cluster

1 event

OVIX Score

7.0

Closed

desk-rules(cleared:expired)

Nov 13, 2026, 11:00 AM UTC

Timeline4

⚠

Incident openedby desk-rulesNov 13, 2026, 08:15 AM UTC

Opened by rule sigmet_hub v2: Icing (SEV) · YMMM MELBOURNE. Valid 06:30–10:30 UTC, up to FL230.

↻

Revalidatedby watchkeeperNov 13, 2026, 09:30 AM UTC

Revalidated: no new activity. Next reval in 24h.

●

alertedby travel-alertsNov 13, 2026, 10:03 AM UTC

Alerted by push

✖

Incident closedby desk-rulesNov 13, 2026, 11:00 AM UTC

Cleared: SIGMET validity ended 10:30 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

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.