374
FNUS72 KJAX 131930
FWSJAX
SPOT FORECAST FOR HWY 82 FIRE...GFC
NATIONAL WEATHER SERVICE JACKSONVILLE FL
330 PM EDT WED MAY 13 2026
FORECAST IS BASED ON FORECAST START TIME OF 0800 EDT ON MAY 14.
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
ELEVATED FIRE WEATHER CONDITIONS ARE EXPECTED THURSDAY AFTERNOON.
A DRY FRONT WILL PUSH THROUGH AROUND 0830 AND BRING A MUCH DRIER
AIRMASS WITH IT, WHICH WILL RESULT IN AFTERNOON HUMIDITY TO NEAR
CRITICAL LEVELS UNDER FULL SUN. NORTHWESTERLY WINDS WILL BEGIN AS
SOON AS THE INVERSION BEGINS TO MIX OUT, AROUND 1000. ANTICIPATE
GUSTS TO REACH NEAR 20 MPH DURING THE ENTIRE AFTERNOON BUT THE
MAXIMUM GUSTS ARE LIKELY DURING THE 1400-1600 WINDOW. SMOKE
DISPERSIONS WILL BE VERY HIGH BUT MORE SO DUE TO THE WINDS AND
LESS SO INSTABILITY.
WARMING TEMPERATURES ARE EXPECTED WITH LINGERING DRY AIR ON
FRIDAY. THIS WILL LEAD TO POTENTIALLY CRITICAL LOW HUMIDITY
ONCE AGAIN. WINDS WILL EASE UP AND SHIFT EAST-NORTHEASTERLY TO
EASTERLY AS HIGH PRESSURE BUILDS TO THE NORTH. THE BIG DIFFERENCE
AT HWY 82 COMPARED TO PINELAND RD WILL BE THE SEA BREEZE LATE IN
THE DAY AROUND 1800.
THURSDAY
TIME (EDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........18 2 2 2 2 2 2 2 4 4
WEATHER COV.....PTY
WEATHER TYPE....FOG
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0
TEMP............62 66 72 75 78 80 81 82 82 83
RH..............91 88 74 65 57 51 44 39 34 29
HEAT INDEX (F)..62 66 72 76 78 81 81 81 81 82
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..3 5 6 6 7 8 9 9 9 9
20 FT WIND GUST.13 13 13 12 14 15 17 17 16 16
MIX HGT (KFT)...0.5 1.2 2.1 3.1 4.3 5.4 6.2 6.5 6.3 5.5
TRANSP WIND DIR.NW NW NW NW NW W W W W W
TRANSP WIND SPD.10 10 12 13 14 16 17 17 17 17
DISPERSION IDX..10 17 32 50 72 100 118 120 118 103
LVORI...........5 4 3 1 1 1 1 1 1 1
THURSDAY NIGHT
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........3 2 2 2 1 1 1 1 2 3 3 4
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............81 78 75 69 66 64 62 60 58 55 55 54
RH..............32 38 47 55 57 59 61 62 66 71 69 71
HEAT INDEX (F)..80 78 75 69 66 64 62 60 58 56 55 54
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW N N
20 FT WIND SPD..7 5 2 2 1 1 1 1 1 1 2 2
20 FT WIND GUST.13 9 8 6 6 6 6 6 7 7 8 8
MIX HGT (KFT)...3.9 2.0 0.5 0.1 0.2 0.4 0.4 0.4 0.4 0.4 0.4 0.4
TRANSP WIND DIR.W NW NW NW NW NW NW NW N N N NE
TRANSP WIND SPD.15 13 10 9 9 9 9 9 9 9 8 8
DISPERSION IDX..68 31 5 4 4 4 4 4 4 4 4 4
LVORI...........1 2 2 2 3 3 3 3 3 3 3 3
FRIDAY
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........4 8 10 0 5 10 11 12 13 15 16 17
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............53 54 56 61 68 74 78 80 81 82 83 82
RH..............73 70 71 70 61 51 46 42 41 37 33 37
HEAT INDEX (F)..53 54 56 61 68 74 78 80 81 82 82 81
20 FT WIND DIR..N N N NE NE NE E E E E E E
20 FT WIND SPD..2 2 2 2 2 2 2 3 3 3 5 5
20 FT WIND GUST.9 9 9 8 8 8 8 7 7 7 8 9
MIX HGT (KFT)...0.2 0.2 0.6 1.9 3.5 4.8 5.4 5.6 5.6 5.9 5.9 5.5
TRANSP WIND DIR.NE NE NE NE E E E E E E SE SE
TRANSP WIND SPD.9 10 10 9 8 7 6 5 5 5 6 7
DISPERSION IDX..4 5 10 23 37 44 42 37 34 39 44 48
LVORI...........3 3 3 3 1 1 1 1 1 1 1 1
FORECASTER...BOOTHE
REQUESTED BY...SITL
TYPE OF REQUEST...WILDFIRE
.TAG 2613578.0/JAX
.DELDT 05/13/26
.FORMATTERVERSION 2.0.0
.EMAIL JWMAYFIELD@GFC.STATE.GA.US,RFONVIELLE@GFC.STATE.GA.US
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