021
FNUS72 KJAX 241121
FWSJAX
SPOT FORECAST FOR SILVER SPRINGS RX 6-24-26...FLORIDA PARK SERVICE
NATIONAL WEATHER SERVICE JACKSONVILLE FL
721 AM EDT WED JUN 24 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 EDT ON JUNE 24.
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.
..HIGH DAYTIME DISPERSION VALUES FORECAST ON THURSDAY AFTERNOON
DISCUSSION
WIDELY SCATTERED LATE AFTERNOON AND EARLY EVENING SHOWERS AND
THUNDERSTORMS MAY DEVELOP NEAR THE BURN SITE TODAY AND AGAIN
ON THURSDAY. OTHERWISE, NORTHWESTERLY SURFACE AND TRANSPORT
WINDS AT IGNITION TIME WILL SHIFT TO WESTERLY THIS AFTERNOON.
SUSTAINED SPEEDS OF 5-10 MPH ARE EXPECTED THIS MORNING, WITH
BREEZY TRANSPORT SPEEDS DEVELOPING LATE THIS AFTERNOON THAT
WILL COMBINE WITH ELEVATED MIXING HEIGHTS TO CREATE GOOD
DAYTIME DISPERSION VALUES. TRANSPORT SPEEDS WILL DIMINISH
DURING THE OVERNIGHT HOURS AND WILL REMAIN LIGHT THROUGH
AROUND SUNRISE, FOLLOWED BY SLOWLY INCREASING SOUTHWESTERLY
WINDS ON THURSDAY MORNING. THESE WINDS WILL COMBINE WITH
ELEVATED MIXING HEIGHTS TO YIELD HIGH DAYTIME DISPERSION
VALUES ON THURSDAY AFTERNOON AT THE BURN SITE.
REST OF TODAY
TIME (EDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........23 21 29 33 40 40 44 53 54 50
WEATHER COV..... SCH CHC CHC CHC
WEATHER TYPE.... RW RW RW RW
TSTM COV........ SCH CHC CHC CHC
CHC OF PCPN (%).0 0 10 10 10 10 20 30 30 30
CHC OF THDR (%).0 0 0 0 0 0 20 30 30 20
TEMP............77 82 85 88 90 93 94 96 95 94
RH..............94 79 72 65 60 50 45 45 45 45
HEAT INDEX (F)..77 89 94 98 99 102 102 104 103 101
20 FT WIND DIR..NW NW NW NW NW W W W W W
20 FT WIND SPD..3 5 6 6 6 7 7 8 8 8
20 FT WIND GUST.6 7 9 9 9 10 10 13 13 13
MIX HGT (KFT)...1.1 1.9 2.8 3.8 4.7 5.4 5.9 6.0 5.7 5.0
TRANSP WIND DIR.NW NW NW W W W W W W W
TRANSP WIND SPD.7 7 7 7 7 8 9 9 10 10
DISPERSION IDX..10 20 25 35 40 50 60 65 70 65
LVORI...........5 3 3 2 1 1 1 1 1 1
TONIGHT
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........38 50 40 22 22 21 19 20 18 23 24 27
WEATHER COV.....SCH CHC SCH
WEATHER TYPE....RW RW RW
TSTM COV........SCH CHC SCH
CHC OF PCPN (%).20 30 20 10 10 10 0 0 0 0 0 0
CHC OF THDR (%).20 20 10 10 10 0 0 0 0 0 0 0
TEMP............93 91 87 84 82 80 78 77 76 75 74 73
RH..............50 54 61 67 72 77 82 85 87 87 90 93
HEAT INDEX (F)..101 99 94 90 87 84 78 77 76 75 74 73
20 FT WIND DIR..W W W SW SW SW SW SW SW SW W SW
20 FT WIND SPD..8 8 7 6 3 2 3 2 2 2 2 1
20 FT WIND GUST.13 13 10 9 6 3 6 3 3 3 3 2
MIX HGT (KFT)...3.7 2.3 1.1 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.4
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.12 12 10 9 8 7 7 6 6 6 6 5
DISPERSION IDX..50 35 6 4 4 3 3 3 3 3 2 2
LVORI...........1 1 3 3 3 4 4 5 6 6 7 7
THURSDAY
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........27 30 31 24 27 23 36 32 30 51 45 33
WEATHER COV..... CHC SCH SCH
WEATHER TYPE.... RW RW RW
TSTM COV........ CHC SCH SCH
CHC OF PCPN (%).0 10 0 0 0 0 20 0 10 30 20 20
CHC OF THDR (%).0 0 0 0 0 0 20 0 10 30 20 20
TEMP............73 73 76 82 85 88 91 93 94 95 93 91
RH..............93 93 87 75 70 60 55 50 50 45 50 55
HEAT INDEX (F)..73 73 76 88 94 97 100 102 103 104 102 100
20 FT WIND DIR..SW SW SW N N SW SW SW SW SW SW SW
20 FT WIND SPD..1 1 2 0 0 2 2 2 3 3 3 3
20 FT WIND GUST.2 2 3 3 5 7 9 10 12 13 14 14
MIX HGT (KFT)...0.3 0.3 0.7 1.7 3.0 4.3 5.5 6.4 6.7 6.2 5.2 4.1
TRANSP WIND DIR.W W SW SW SW SW SW SW SW SW SW SW
TRANSP WIND SPD.5 5 5 6 7 9 9 10 10 10 10 10
DISPERSION IDX..2 2 5 15 30 50 65 75 85 80 70 55
LVORI...........7 8 6 4 3 1 1 1 1 1 1 1
FORECASTER...NELSON
REQUESTED BY...PETER JENSEN
TYPE OF REQUEST...PRESCRIBED
.TAG 2616072.0/JAX
.DELDT 06/24/26
.FORMATTERVERSION 2.0.0
.EMAIL PETER.JENSEN@FLORIDADEP.GOV
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