St. Johns County, FL — Severe Weather & Radar
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Active warnings
Severe-weather outlook
The Storm Prediction Center has St. Johns County, FL in a Marginal Riskfor severe thunderstorms today (Day 1 categorical outlook).
3-day forecast
Forecast: NOAA National Blend of Models.
When is severe weather most likely near St. Johns?
St. Johns County sees frequent thunderstorms through the summer, bringing intense lightning, damaging winds, waterspouts, and flooding.
Tropical systems add a severe-weather and flooding risk from June through November, and can spin up tornadoes.
Based on long-term NOAA / NWS Storm Prediction Center climatology.
In St. Johns County, FL
St. Johns County, FL has an estimated 280,000 residents, plus 1 hospitals, 8 nursing homes, 65 schools, 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 St. Johns:
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.