142
FNUS72 KJAX 231212
FWSJAX
SPOT FORECAST FOR GRIFFIS REFORESTATION PROJECT...FLORIDA FOREST SERVICE
NATIONAL WEATHER SERVICE JACKSONVILLE FL
812 AM EDT THU JUL 23 2026
FORECAST IS BASED ON IGNITION TIME OF 0900 EDT ON JULY 23.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE AT (904) 741-4370 IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
DISCUSSION
LIGHT AND VARIABLE WINDS THIS MORNING WILL INCREASE AND BECOME
EASTERLY AS THE ATLANTIC SEA BREEZE PUSHES IN DURING THE
AFTERNOON AROUND 3PM WITH FAIR TO GOOD DISPERSIONS. A FEW SHOWERS
AND STORMS WILL BE POSSIBLE AS THE SEA BREEZE PUSHES INLAND
TODAY, WITH ANY LINGERING ACTIVITY DIMINISHING BY THE LATE
AFTERNOON TO EARLY EVENING HOURS. WIND SPEEDS WILL BEGIN TO WANE
DURING THE OVERNIGHT HOURS. SIMILAR PATTERN ON FRIDAY WITH THE
ATLANTIC SEA BREEZE PUSHING THROUGH DURING THE MID AFTERNOON
HOURS. TEMPERATURES BOTH AFTERNOON HOURS WILL REACH INTO THE MID
TO UPPER 90S, WITH HEAT INDEX VALUES RISING TO NEAR HEAT ADVISORY
CRITERIA.
REST OF TODAY
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........2 1 8 16 37 40 40 33 36
WEATHER COV..... SCH SCH SCH
WEATHER TYPE.... RW RW RW
TSTM COV........ SCH SCH SCH
CHC OF PCPN (%).0 0 0 10 10 10 20 20 20
CHC OF THDR (%).0 0 0 10 10 10 20 20 20
TEMP............81 87 90 93 95 97 97 98 96
RH..............85 70 62 54 49 45 45 42 45
HEAT INDEX (F)..87 98 101 103 105 106 106 106 104
20 FT WIND DIR..E E E E E E E E SE
20 FT WIND SPD..1 1 2 2 3 3 5 5 6
20 FT WIND GUST.3 3 5 7 8 9 10 12 12
MIX HGT (KFT)...1.8 3.0 4.1 4.8 5.4 6.1 5.9 5.7 5.4
TRANSP WIND DIR.SE SE E E E E E E E
TRANSP WIND SPD.5 5 5 5 5 6 6 6 6
DISPERSION IDX..11 17 23 27 32 40 40 41 41
LVORI...........4 3 2 2 1 1 1 1 1
TONIGHT
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........53 51 44 35 39 33 43 25 33 32 29 34
WEATHER COV.....SCH
WEATHER TYPE....RW
TSTM COV........SCH
CHC OF PCPN (%).20 10 10 10 10 10 0 0 0 0 0 0
CHC OF THDR (%).20 10 10 10 10 0 0 0 0 0 0 0
TEMP............95 93 89 86 83 81 80 79 78 77 76 75
RH..............48 51 59 65 72 77 79 82 85 88 90 90
HEAT INDEX (F)..104 101 97 93 89 86 84 79 78 77 76 75
20 FT WIND DIR..SE E E SE SE SE SE SE SE N N N
20 FT WIND SPD..6 6 6 6 6 5 3 2 1 0 0 0
20 FT WIND GUST.12 13 13 13 13 12 10 8 7 6 5 3
MIX HGT (KFT)...3.9 2.4 0.8 0.7 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.4
TRANSP WIND DIR.E E E E SE SE SE S S S SE SE
TRANSP WIND SPD.7 7 8 8 8 8 8 7 7 6 6 5
DISPERSION IDX..33 22 5 4 4 5 4 3 3 3 3 2
LVORI...........1 2 3 3 3 3 4 5 5 6 6 7
FRIDAY
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........44 21 31 24 21 18 9 31 29 31 22 6
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 10
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 10
TEMP............75 74 76 80 86 90 92 94 96 97 97 98
RH..............90 93 94 88 72 64 58 51 46 45 45 43
HEAT INDEX (F)..75 74 76 86 96 102 103 103 105 106 106 107
20 FT WIND DIR..N N N N N SE E E E E E E
20 FT WIND SPD..0 0 0 0 0 2 3 5 6 6 7 8
20 FT WIND GUST.3 3 3 3 3 5 8 10 12 13 13 13
MIX HGT (KFT)...0.5 0.6 0.7 1.6 2.6 3.5 4.3 5.1 5.8 6.2 6.5 6.8
TRANSP WIND DIR.SE S S SE E E E E E E E E
TRANSP WIND SPD.5 5 5 5 5 6 6 7 7 7 7 8
DISPERSION IDX..2 2 4 10 16 23 31 40 49 52 54 57
LVORI...........7 7 6 4 3 2 1 1 1 1 1 1
FORECASTER...CRUZ
REQUESTED BY...GREG JACKSON
TYPE OF REQUEST...PRESCRIBED
.TAG 2618032.0/JAX
.DELDT 07/23/26
.FORMATTERVERSION 2.0.0
.EMAIL THOMAS.JACKSON@FDACS.GOV
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