639
WWUS82 KJAX 210552
RFWJAX
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE JACKSONVILLE FL
152 AM EDT TUE APR 21 2026
...CRITICAL FIRE WEATHER CONDITIONS EXPECTED TODAY ACROSS INLAND
NORTHEAST FL THIS MORNING THROUGH THIS LATE AFTERNOON...
FLZ023-024-030-031-035-132-136-137-140-225-232-236-237-240-322-
340-422-425-522-212100-
/O.CON.KJAX.FW.W.0010.260421T1500Z-260422T0000Z/
BAKER-INLAND NASSAU-UNION-BRADFORD-GILCHRIST-EASTERN CLAY-
EASTERN ALACHUA-EASTERN PUTNAM-EASTERN MARION-TROUT RIVER-
WESTERN CLAY-WESTERN ALACHUA-WESTERN PUTNAM-CENTRAL MARION-
NORTHERN COLUMBIA-WESTERN MARION-SOUTHEASTERN COLUMBIA-
WESTERN DUVAL-SOUTHWESTERN COLUMBIA-
152 AM EDT TUE APR 21 2026
...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
8 PM EDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR INLAND
AREAS OF NORTHEAST FLORIDA...
* AFFECTED AREA...IN FLORIDA, BAKER, INLAND NASSAU, UNION,
BRADFORD, GILCHRIST, EASTERN CLAY, EASTERN ALACHUA, EASTERN
PUTNAM, EASTERN MARION, TROUT RIVER, WESTERN CLAY, WESTERN
ALACHUA, WESTERN PUTNAM, CENTRAL MARION, NORTHERN COLUMBIA,
WESTERN MARION, SOUTHEASTERN COLUMBIA, WESTERN DUVAL AND
SOUTHWESTERN COLUMBIA.
* TIMING...TUESDAY LATE MORNING THROUGH EVENING.
* WINDS...NORTHEAST 12 TO 18 MPH WITH GUSTS TO 25 MPH.
* RELATIVE HUMIDITY...AS LOW AS 21 PERCENT.
* TEMPERATURES...UP TO 85.
* LIGHTNING...
* IMPACTS...EXISTING OR NEWLY IGNITED WILDFIRES MAY EXHIBIT
ERRATIC FIRE BEHAVIOR, SPREAD RAPIDLY AND BECOME DIFFICULT TO
CONTAIN OR SUPPRESS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW, OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS, LOW RELATIVE HUMIDITY, AND WARM TEMPERATURES CAN
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.
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