Jacksonville, FL weather

Active alerts for Jacksonville’s county

• Flood Advisory

  Flood · 55m left

  Duval, FL

• Coastal Flood Advisory

  Flood · 2d left

  Trout River

• High Surf Advisory

  Marine · 2d left

  Coastal Nassau; Coastal Duval; Coastal Flagler; Northeast Coastal St. Johns; Southeast Coastal St. Johns

• Flood Watch

  Flood · 10h 10m left

  Inland Nassau; Inland Flagler; Coastal Nassau; Coastal Duval; Eastern Clay; Eastern Putnam; Coastal Flagler; Trout River; Northeast Coastal St. Johns; South Central Duval; Southeast Coastal St. Johns; Western Duval; Northern Inland St. Johns; Southern Inland St. Johns; Western St. Johns; Inland Camden; Coastal Camden

Relayed from the National Weather Service. Every active warning. For anything affecting your safety, use weather.gov.

Winter in Jacksonville

Jacksonville sees essentially no snow in an average year, according to NOAA’s 1991-2020 climate normals - a essentially snowless place. Measurable snow is close to unheard of. On the rare occasion it falls, everything stops.

That is why local snowfall thresholds differ so much from one town to the next: a district that plans for 0 inches a year is equipped differently from one that never sees any. Here, roughly 0.5 inches in a single storm is where a normal school day comes under threat.

Upper air over Jacksonville

The nearest radiosonde launch is Jacksonville, about 12 miles away. A weather balloon goes up twice a day and measures temperature, humidity and wind all the way through the atmosphere - which is what forecasters actually read to judge whether storms will fire, and how a surface forecast was arrived at.

Read the JAX sounding