978
FNUS72 KJAX 181218
FWSJAX
SPOT FORECAST FOR CONNER-NELSON RD (45)...FLORIDA FOREST SERVICE
NATIONAL WEATHER SERVICE JACKSONVILLE FL
818 AM EDT SAT APR 18 2026
FORECAST IS BASED ON FORECAST START TIME OF 0900 EDT ON APRIL 18.
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.
..ELEVATED FIRE DANGER TODAY
...FIRE WEATHER WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH
MONDAY EVENING...
DISCUSSION
CONTINUED HOT AND DRY TODAY WITH MOSTLY CLEAR SKIES. A SOUTHWEST
AND WEST WIND EXPECTED IN THE MORNING AND AFTERNOON HOURS, WITH
A SHIFT TO THE SOUTH AND SOUTHEAST POSSIBLE DUE TO THE ATLANTIC
SEA BREEZE BUT NOT ANTICIPATED UNTIL AROUND 8 PM THIS EVENING.
WINDS WILL SHIFT BACK TO THE SOUTHWEST BY ABOUT MIDNIGHT. MINRH
TODAY AT THE WILDFIRE FORECAST TO BE NEAR 25 PERCENT WITH A
HIGH DISPERSION OF ABOUT 85. WIND SPEEDS ABOUT 6-10 MPH WITH
AN OCCASIONAL GUST AROUND 15 MPH.
FOR SUNDAY, RH VALUES NOT AS LOW WITH MIN VALUES IN THE 30S, MORE
WESTERLY FLOW AHEAD OF MOSTLY DRY COLD FRONTAL PASSAGE. A NORTHWEST
FLOW DEVELOPS IN THE EARLY AFTERNOON AS TEH FRONT PASSES BY.
BORDERLINE HIGH DISPERSION.
POSSIBLE RED FLAG EVENT FOR MONDAY AS WINDS AND RH BEHIND THE FRONT
MAY MEET CRITERIA.
REST OF TODAY
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........37 28 33 26 29 29 35 40 43
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0 0
TEMP............68 76 82 86 89 91 92 93 93
RH..............59 46 38 32 30 29 28 26 26
HEAT INDEX (F)..68 76 81 84 87 89 90 91 91
20 FT WIND DIR..W W SW SW SW SW SW SW SW
20 FT WIND SPD..2 2 3 5 6 7 6 7 8
20 FT WIND GUST. 7 8 9 10 12 13 13 12
MIX HGT (KFT)...1.4 2.5 3.5 4.9 6.4 7.8 8.1 8.4 8.7
TRANSP WIND DIR.W W SW SW SW SW SW SW SW
TRANSP WIND SPD.7 6 6 7 8 9 9 9 9
DISPERSION IDX..12 19 27 43 64 85 86 79 81
LVORI...........2 2 2 1 1 1 1 1 1
TONIGHT
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........45 42 45 39 41 47 40 35 51 62 63 75
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............91 88 82 78 76 73 70 68 67 66 65 64
RH..............28 31 41 47 50 55 61 65 68 70 73 75
HEAT INDEX (F)..89 86 82 78 76 73 70 68 67 66 65 64
20 FT WIND DIR..SW SW SW SW S SW SW SW SW SW SW SW
20 FT WIND SPD..7 5 5 5 2 3 3 3 3 3 3 3
20 FT WIND GUST.13 13 14 10 9 8 8 7 6 6 7 7
MIX HGT (KFT)...6.0 3.3 0.6 0.6 0.5 0.5 0.5 0.5 0.4 0.4 0.4 0.4
TRANSP WIND DIR.SW W W W SW SW SW W W W W W
TRANSP WIND SPD.9 9 9 9 9 9 9 9 9 9 9 8
DISPERSION IDX..62 40 6 4 5 4 4 4 4 4 4 4
LVORI...........1 1 2 2 2 2 3 3 3 3 3 4
SUNDAY
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........67 66 71 54 59 63 67 70 74 75 77 78
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 10 10 10 10 10 10 10 10 10 10
CHC OF THDR (%).0 0 0 0 0 0 0 0 10 10 10 10
TEMP............63 63 64 70 76 82 85 87 88 88 87 85
RH..............78 78 78 68 60 47 43 40 38 38 38 39
HEAT INDEX (F)..63 63 64 70 76 82 85 87 87 87 86 84
20 FT WIND DIR..SW SW SW W W W W W NW NW NW NW
20 FT WIND SPD..3 3 2 3 7 7 8 9 10 12 12 12
20 FT WIND GUST.7 7 7 8 12 13 14 16 17 18 20 21
MIX HGT (KFT)...0.5 0.6 0.7 1.5 2.4 3.2 4.0 4.8 5.6 5.0 4.4 3.8
TRANSP WIND DIR.W W W W NW NW NW NW NW NW N N
TRANSP WIND SPD.9 9 10 10 10 12 12 13 14 14 14 14
DISPERSION IDX..4 4 10 21 33 45 58 60 62 59 56 52
LVORI...........4 4 3 3 1 1 1 1 1 1 1 1
FORECASTER...SHASHY
REQUESTED BY...SIERRA BLACKWELL
TYPE OF REQUEST...WILDFIRE
.TAG 2610642.1/JAX
.DELDT 04/18/26
.FORMATTERVERSION 2.0.0
.EMAIL DESIREE.LIBERACKI@FDACS.GOV,CHAZ.WOLLITZ@FDACS.GOV,MICHAEL.WORK@FDACS.GOV,MATTHEW.KLINDT@FDACS.GOV,SIERRA.BLACKWELL@FDACS.GOV
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