626
FNUS72 KJAX 271120
FWSJAX
SPOT FORECAST FOR RX TC WORK 8/27/26...FLORIDA FOREST SERVICE
NATIONAL WEATHER SERVICE JACKSONVILLE FL
720 AM EDT THU AUG 27 2026
FORECAST IS BASED ON IGNITION TIME OF 0900 EDT ON AUGUST 27.
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
SOUTHWEST WINDS CONTINUE THROUGH FRIDAY, AROUND 5-10MPH. RAIN AND
STORM CHANCE BEGIN IN THE EARLY AFTERNOON TODAY, LASTING THROUGH
AROUND SUNSET WITH A SIMILAR SET UP EXPECTED ON FRIDAY. THERE REMAINS
A CHANCE FOR AN ISOLATED STRONG THUNDERSTORM BOTH AFTERNOONS AND EVENINGS,
WITH LOCALLY HEAVY DOWNPOURS AND STRONG WINDS BEING THE PRIMARY CONCERNS.
FAIR TO GOOD DISPERSION IS FORECAST FOR TODAY AND FRIDAY.
REST OF TODAY
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........15 16 28 29 40 58 73 70 62
WEATHER COV..... CHC CHC CHC CHC
WEATHER TYPE.... RW RW RW RW
TSTM COV........ CHC CHC CHC CHC
CHC OF PCPN (%).0 0 10 10 10 40 50 50 40
CHC OF THDR (%).0 0 10 10 10 40 50 50 40
TEMP............76 81 85 86 88 89 88 89 85
RH..............94 82 75 72 66 64 63 61 72
HEAT INDEX (F)..76 87 94 96 98 99 97 98 94
20 FT WIND DIR..SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..2 3 3 3 3 3 3 3 3
20 FT WIND GUST.5 6 7 7 8 9 9 9 9
MIX HGT (KFT)...1.2 1.9 2.6 3.4 4.1 4.9 4.2 3.5 2.8
TRANSP WIND DIR.SW SW SW SW SW SW SW SW S
TRANSP WIND SPD.7 7 7 7 8 8 8 9 9
DISPERSION IDX..11 18 24 31 43 50 46 41 33
LVORI...........5 3 3 3 1 1 1 1 3
TONIGHT
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........63 61 44 49 54 51 37 36 43 38 32 28
WEATHER COV.....CHC CHC SCH
WEATHER TYPE....RW RW RW
TSTM COV........CHC CHC SCH
CHC OF PCPN (%).40 40 20 10 10 10 10 10 0 0 0 0
CHC OF THDR (%).40 40 20 10 10 10 10 10 0 0 0 0
TEMP............82 81 78 77 76 75 75 74 74 73 73 72
RH..............77 82 88 90 94 94 94 97 97 97 97 100
HEAT INDEX (F)..88 87 78 77 76 75 75 74 74 73 73 72
20 FT WIND DIR..SW S SE S S S S S S S S S
20 FT WIND SPD..3 3 3 2 2 1 1 1 1 1 1 1
20 FT WIND GUST.9 7 7 5 3 5 5 5 5 5 5 5
MIX HGT (KFT)...2.0 1.3 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4
TRANSP WIND DIR.S S S S S S S S S S SW SW
TRANSP WIND SPD.8 8 7 7 7 7 7 7 7 7 6 6
DISPERSION IDX..22 13 3 3 3 3 3 3 3 3 3 3
LVORI...........3 4 6 6 6 6 7 7 7 8 8 8
FRIDAY
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........23 24 30 24 41 30 33 39 60 71 72 78
WEATHER COV..... SCH SCH CHC LKY LKY LKY
WEATHER TYPE.... RW RW RW RW RW RW
TSTM COV........ SCH CHC LKY LKY LKY
CHC OF PCPN (%).10 0 20 10 0 10 10 20 40 60 60 70
CHC OF THDR (%).0 0 10 10 0 10 10 20 40 60 60 60
TEMP............72 71 73 76 82 85 86 88 88 87 88 85
RH..............100 100 100 97 82 77 75 68 68 68 66 72
HEAT INDEX (F)..72 71 73 76 89 96 97 99 99 96 98 94
20 FT WIND DIR..S S S SW SW SW SW SW S SW S SW
20 FT WIND SPD..1 1 1 2 3 5 5 5 5 5 3 3
20 FT WIND GUST.5 3 5 5 6 8 8 9 9 10 9 8
MIX HGT (KFT)...0.5 0.5 0.5 1.4 2.2 3.1 3.8 4.5 5.2 4.4 3.5 2.6
TRANSP WIND DIR.SW SW SW SW SW SW SW SW SW SW SW SW
TRANSP WIND SPD.6 6 6 7 8 8 9 9 9 8 8 8
DISPERSION IDX..3 3 6 12 23 33 44 52 42 35 30 26
LVORI...........8 9 8 6 3 3 2 1 1 3 2 3
FORECASTER...KLINGLER
REQUESTED BY...SIERRA BLACKWELL
TYPE OF REQUEST...PRESCRIBED
.TAG 2620682.0/JAX
.DELDT 08/27/26
.FORMATTERVERSION 2.0.0
.EMAIL LARRY.HUMPHREY@FDACS.GOV,MICHAEL.WORK@FDACS.GOV,SIERRA.BLACKWELL@FDACS.GOV
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