Napa County, CA — Severe Weather & Radar
No active severe-weather warnings for Napa County, CA right now. Live radar is below — set up alerts to get warned the moment one is issued.
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Severe-weather outlook
No severe-weather risk is outlooked for Napa County, CA today.
3-day forecast
Forecast via Open-Meteo.
When is severe weather most likely near Napa?
Severe thunderstorms and tornadoes are relatively rare in Napa County.
The larger weather threats are winter storm systems bringing damaging winds, heavy rain, and flooding, mainly from late fall through spring.
Based on long-term NOAA / NWS Storm Prediction Center climatology.
In Napa County, CA
Napa County, CA has an estimated 140,000 residents, plus 3 hospitals, 6 nursing homes, 42 schools, 9 mobile-home parks, 3 dialysis centers that could be in a storm's path. Atmostorm shows which of them fall inside an active warning polygon.
Emergency-management view: who & what is in the warned path →
Nearby areas
Live radar and active alerts for places near Napa:
Not an official source — always confirm with the National Weather Service at weather.gov. Data aggregated from NWS/SPC. Facility and population figures are decision-support estimates.