Heat Advisory issued March 19 at 10:04PM PDT until March 20 at 8:00PM PDT by NWS San Francisco CA

NWS Active Alerts report on Heat Advisory issued March 19 at 10:04PM PDT until March 20 at 8:00PM PDT by NWS San Francisco CA.

Developing Major update Updated Mar 20, 2026, 5:04 AM UTC

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NWS Active Alerts: Heat Advisory issued March 19 at 10:04PM PDT until March 20 at 8:00PM PDT by NWS San Francisco CA.

First seen Mar 20, 2026, 4:36 AM UTC Latest source Mar 20, 2026, 5:04 AM UTC

Update 1 1h ago

NWS Active Alerts •published Mar 20, 2026, 5:04 AM UTC •fetched Mar 20, 2026, 5:05 AM UTC

Update 2 2h ago

NWS Active Alerts •published Mar 20, 2026, 4:36 AM UTC •fetched Mar 20, 2026, 4:36 AM UTC

Update 3 2h ago

NWS Active Alerts •published Mar 20, 2026, 4:36 AM UTC •fetched Mar 20, 2026, 4:36 AM UTC