Jacksonville Weather Radar - Live Doppler Map (FL)

🌦️ Jacksonville Weather & Live Doppler Radar Guide

Jacksonville is located in Northeast Florida along the Atlantic Coast and the St. Johns River, making it the largest city by land area in the contiguous United States. The city has a humid subtropical climate featuring long, hot, humid summers and mild, sunny winters. Jacksonville's weather is heavily influenced by the Atlantic Ocean sea breeze and the unique northward flow of the St. Johns River. Daily sea-breeze convergence boundaries in the summer produce intense downpours, frequent lightning strikes, and localized urban street flooding across Duval, St. Johns, and Clay counties.

📡 NOAA NEXRAD Station: KJAX (Jacksonville / Jacksonville, FL)

Our live Jacksonville radar displays Level-III NEXRAD radar data from NOAA station KJAX, situated in northern Duval County. Station KJAX operates with S-band dual-polarization Doppler technology, allowing meteorologists to track offshore Atlantic tropical depressions, scan approaching hurricane rainbands, and detect torrential thunderstorm cores.

🎨 How to Read Doppler Reflectivity (dBZ Scale)

Radar reflectivity measures precipitation density in decibels of Z (dBZ). Use this color reference when monitoring approaching storms on the Jacksonville radar:

⚠️ Seasonal Severe Storm Threats in Jacksonville

During hurricane season (June through November), Northeast Florida is vulnerable to Atlantic tropical storms and hurricanes that push dangerous storm surge into the St. Johns River basin and beaches. Summer afternoons regularly bring severe pulse thunderstorms with damaging winds and heavy lightning.