012
FNUS72 KJAX 201413
FWSJAX
SPOT FORECAST FOR RSSF RX BURN...FLORIDA FOREST SERVICE
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1013 AM EDT WED AUG 20 2025
FORECAST IS BASED ON IGNITION TIME OF 1000 EDT ON AUGUST 20.
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
HURRICANE ERIN PASSING TO THE EAST OF FLORIDA WILL RESULT IN
SLIGHTLY BREEZY CONDITIONS TODAY WITH A NORTHERLY FLOW AROUND 5-10
MPH WITH SOME GUSTS UP TO AROUND 15 MPH THROUGH THIS EVENING.
ASIDE FROM A A FEW ISOLATED SHOWERS AND PERHAPS A VERY ISOLATED
THUNDERSTORM, CONDITIONS WILL BE MOSTLY DRY THROUGH THE REST OF
TODAY, WITH MIXING HEIGHTS AROUND 4.5KFT AND GOOD DISPERSIONS
GIVEN LOW SHOWER AND T'STORM COVERAGE. RAIN CHANCES INCREASE
SLIGHTLY ON THURSDAY, THOUGH STILL REMAIN GENERALLY LOWER THAN
NORMAL. FLOW WILL SHIFT MORE WEST TO NORTHWESTERLY THURSDAY, AND
ALSO FEATURE GOOD TO BORDERLINE HIGH DISPERSIONS.
REST OF TODAY
TIME (EDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........14 29 30 35 37 37 36 36
WEATHER COV..... SCH SCH SCH SCH
WEATHER TYPE.... RW RW RW RW
TSTM COV........ SCH SCH SCH SCH
CHC OF PCPN (%).0 0 10 10 20 20 20 20
CHC OF THDR (%).0 0 0 10 20 20 20 20
TEMP............82 86 88 90 90 90 90 90
RH..............77 68 63 58 56 56 56 56
HEAT INDEX (F)..88 94 97 98 97 97 97 97
WIND CHILL (F)..82 86 88 90 90 90 90 90
20 FT WIND DIR..N N N N N N N N
20 FT WIND SPD..7 7 7 7 7 7 6 6
20 FT WIND GUST.10 10 10 10 10 10 9 9
MIX HGT (KFT)...2.4 3.1 3.7 4.1 4.5 4.4 4.6 4.2
TRANSP WIND DIR.N N N N N N N N
TRANSP WIND SPD.14 15 14 13 12 10 10 9
DISPERSION IDX..41 55 62 62 60 56 55 48
LVORI...........3 1 1 1 1 1 1 1
TONIGHT
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........38 34 34 30 8 6 6 5 4 4 1 8
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).10 10 0 0 0 0 0 0 0 0 0 0
CHC OF THDR (%).20 20 10 0 0 0 0 0 0 0 0 0
TEMP............88 86 84 81 79 78 77 76 76 75 74 74
RH..............59 65 70 74 82 82 85 85 85 87 90 90
HEAT INDEX (F)..95 93 90 85 79 78 77 76 76 75 74 74
WIND CHILL (F)..88 86 84 81 79 78 77 76 76 75 74 74
20 FT WIND DIR..N N N NW W W W W W W W W
20 FT WIND SPD..5 3 2 1 2 2 2 2 1 2 2 2
20 FT WIND GUST.7 6 3 2 3 3 3 3 2 3 3 3
MIX HGT (KFT)...3.8 1.0 0.5 0.5 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.4
TRANSP WIND DIR.N N N NW W W W W W W W W
TRANSP WIND SPD.8 7 6 5 5 5 6 6 7 7 7 7
DISPERSION IDX..37 8 2 2 2 2 2 3 3 3 3 3
LVORI...........1 3 3 3 4 5 5 5 5 6 6 6
THURSDAY
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........11 8 6 3 5 7 12 18 23 25 27 29
WEATHER COV..... CHC CHC CHC CHC
WEATHER TYPE.... RW RW RW RW
TSTM COV........ CHC CHC CHC CHC
CHC OF PCPN (%).0 0 0 0 0 0 0 0 40 40 40 40
CHC OF THDR (%).0 0 0 0 0 0 0 0 40 40 40 40
TEMP............73 73 75 80 84 88 91 92 93 93 93 91
RH..............93 97 90 79 70 63 58 54 52 52 52 56
HEAT INDEX (F)..73 73 75 84 90 97 101 101 102 102 102 100
WIND CHILL (F)..73 73 75 80 84 88 91 92 93 93 93 91
20 FT WIND DIR..W W W NW NW W W W W W W W
20 FT WIND SPD..2 2 2 2 3 5 5 5 5 5 3 3
20 FT WIND GUST.3 3 3 3 6 7 7 7 7 7 6 6
MIX HGT (KFT)...0.4 0.5 0.4 0.8 1.8 3.6 4.5 5.0 5.7 5.0 4.4 3.7
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.6 6 6 7 9 10 10 10 10 10 10 9
DISPERSION IDX..3 3 6 7 21 47 61 67 73 65 56 46
LVORI...........6 7 6 4 3 1 1 1 1 1 1 1
FORECASTER...DUBOIS
REQUESTED BY...SEAN DOWIE
TYPE OF REQUEST...PRESCRIBED
.TAG 2520308.0/JAX
.DELDT 08/20/25
.FORMATTERVERSION 2.0.0
.EMAIL SEAN.DOWIE@FDACS.GOV
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