AtmostormCounty briefing

San Mateo County, CA

Severe-weather activation briefing

Generated 2026-09-20T07:28:52.698344+00:00

No active warnings

Radar over San Mateo County, CA

County exposure (baseline)

San Mateo County, CA has an estimated 776,747 residents, including 16 nursing homes, 4 mobile-home parks, 14 dialysis centers, 4 hospitals and 176 schools. This is the denominator behind “in the warned path”.