AtmostormCounty briefing
Napa County, CA
Severe-weather activation briefing
Generated 2026-09-20T14:08:28.779541+00:00
No active warnings
County exposure (baseline)
Napa County, CA has an estimated 138,019 residents, including 6 nursing homes, 9 mobile-home parks, 3 dialysis centers, 3 hospitals and 42 schools. This is the denominator behind “in the warned path”.