180
FNUS72 KJAX 212011
FWSJAX
SPOT FORECAST FOR ASHLEY...NPS
NATIONAL WEATHER SERVICE JACKSONVILLE FL
411 PM EDT MON JUL 21 2025
FORECAST IS BASED ON FORECAST START TIME OF 1600 EDT ON JULY 21.
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.
..HEAT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
DISCUSSION
SCATTERED T'STORMS WILL DEVELOP THROUGH THE REMINDER OF THE
AFTERNOON HOURS AS A TROUGH EXTENDS FROM THE SOUTHEAST COAST INTO
NORTHERN FL. GUSTY AND ERRATIC WINDS POSSIBLE IN ISOLATED STRONG
T'STORMS THIS AFTERNOON WITH FREQUENT LIGHTNING AND LOCALLY HEAVY
DOWNPOURS. LIGHT SOUTHWEST WINDS 5-10 MPH OUTSIDE OF T'STORMS WILL
BECOME WESTERLY UNDER 5MPH OVERNIGHT AS SLIGHT CHANCES FOR T'STORMS
AND SHOWERS END BY AROUND TO JUST AFTER MIDNIGHT.
TUESDAY, LOW END DISPERSIONS PERSIST THROUGH THE DAY LIGHT WESTERLY
WINDS BECOME NORTHEAST TO EASTERLY DUE TO THE ATLANTIC SEABREEZE
PASSAGE BEFORE A COLD FRONT APPROACHES LATER IN THE DAY. AHEAD OF
THE COLD FRONT THERE WILL BE SCATTERED SHOWERS AND T'STORMS BECOMING
MORE NUMEROUS IN THE LATE AFTERNOON. A FEW STRONG TO ISOLATED SEVERE
T'STORMS MAY PRODUCE GUSTY AND ERRATIC WINDS, FREQUENT LIGHTNING, AND
LOCALLY HEAVY RAINFALL OVER THE SITE.
REST OF TODAY
TIME (EDT) 4PM 5PM
SKY (%).........69 69
WEATHER COV.....CHC CHC
WEATHER TYPE....RW RW
TSTM COV........CHC CHC
CHC OF PCPN (%).40 50
CHC OF THDR (%).50 40
TEMP............90 88
RH..............64 68
HEAT INDEX (F)..103 103
WIND CHILL (F)..91 91
20 FT WIND DIR..W SW
20 FT WIND SPD..7 7
20 FT WIND GUST.10 10
MIX HGT (KFT)...1.4 1.1
TRANSP WIND DIR.W W
TRANSP WIND SPD.10 12
DISPERSION IDX..23 18
LVORI...........2 3
TONIGHT
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........70 55 66 67 50 51 55 49 51 39 44 47
WEATHER COV.....CHC CHC CHC CHC CHC SCH SCH SCH SCH
WEATHER TYPE....RW RW RW RW RW RW RW RW RW
TSTM COV........CHC CHC CHC CHC CHC SCH SCH SCH SCH
CHC OF PCPN (%).50 40 50 40 30 20 20 20 20 10 10 10
CHC OF THDR (%).40 30 40 30 30 20 20 10 10 10 10 20
TEMP............88 87 85 83 83 81 81 80 79 78 78 77
RH..............66 68 72 77 77 79 79 82 85 88 85 88
HEAT INDEX (F)..101 94 92 89 86 86 85 79 79 79 78 78
WIND CHILL (F)..90 86 84 82 81 81 80 79 79 79 78 78
20 FT WIND DIR..SW SW SW SW SW SW W W W W W W
20 FT WIND SPD..7 6 6 5 3 3 3 2 2 2 3 3
20 FT WIND GUST.10 9 9 7 6 6 6 3 3 3 6 6
MIX HGT (KFT)...1.0 0.9 0.7 0.7 0.6 0.6 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.10 10 10 9 9 9 10 10 12 12 12 12
DISPERSION IDX..15 12 8 7 7 7 7 7 8 7 8 8
LVORI...........3 3 3 4 4 4 4 4 4 5 4 4
TUESDAY
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........38 33 24 21 20 24 17 32 41 38 34 41
WEATHER COV..... CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC
WEATHER TYPE.... RW RW RW RW RW RW RW RW RW RW
TSTM COV........ SCH SCH SCH CHC CHC CHC CHC CHC CHC CHC
CHC OF PCPN (%).10 10 30 30 30 30 30 30 30 40 50 50
CHC OF THDR (%).20 20 20 20 20 30 30 30 30 40 50 50
TEMP............77 77 79 83 88 91 93 93 93 93 91 89
RH..............88 90 91 82 70 64 60 58 58 58 64 68
HEAT INDEX (F)..77 76 79 91 96 102 103 103 103 102 100 98
WIND CHILL (F)..77 76 79 83 86 89 90 90 90 89 87 86
20 FT WIND DIR..W W W W NW NW N NE E SE SE SE
20 FT WIND SPD..3 3 3 3 5 6 6 6 6 6 6 6
20 FT WIND GUST.6 6 8 8 8 8 8 8 9 10 10 10
MIX HGT (KFT)...0.5 0.6 0.6 1.0 1.4 1.7 1.8 1.9 1.9 1.7 1.4 1.2
TRANSP WIND DIR.W W W W NW NW NW NW NW N E SE
TRANSP WIND SPD.12 12 12 10 9 8 8 8 8 9 10 12
DISPERSION IDX..8 6 11 13 16 18 19 19 21 21 19 18
LVORI...........5 5 5 4 3 3 3 3 3 2 3 3
FORECASTER...BRICKER
REQUESTED BY...MEGAN HURRELL
TYPE OF REQUEST...WILDFIRE
.TAG 2518377.0/JAX
.DELDT 07/21/25
.FORMATTERVERSION 2.0.0
.EMAIL LUCAS_HUNKLER@NPS.GOV,MEGAN_HURRELL@NPS.GOV
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