912
FNUS72 KJAX 120448
FWSJAX
SPOT FORECAST FOR MAILBOX...USFS
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1248 AM EDT SUN JUL 12 2026
FORECAST IS BASED ON FORECAST START TIME OF 0700 EDT ON JULY 12.
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 FROM 11 AM THIS MORNING TO 7 PM EDT
THIS EVENING...
DISCUSSION
WESTERLY AND THEN SOUTHWESTERLY WINDS ALONG WITH INCREASING
CHANCES FOR SHOWERS AND STORMS WILL BUILD THIS AFTERNOON FOR THE
VICINITY OF THE BURN SITE. STORM CHANCES AND WINDS WILL DROP OF
THIS EVENING AND INTO TONIGHT, REBUILDING ON MONDAY WITH MUCH
HIGHER LIKELIHOODS FOR CONVECTION TO FORM OVER THE BURN SITE ON
MONDAY.
WINDS WILL BUILD IN FROM OUT OF THE WEST AND THEN SOUTHWEST THIS
AFTERNOON
REST OF TODAY
TIME (EDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........41 45 48 51 54 55 56 57 57 56 56
WEATHER COV..... SCH CHC CHC CHC CHC
WEATHER TYPE.... RW RW RW RW RW
TSTM COV........ SCH CHC CHC CHC CHC
CHC OF PCPN (%).0 0 0 10 10 20 30 40 40 40 30
CHC OF THDR (%).0 0 0 0 10 10 20 30 30 30 30
TEMP............72 74 80 85 88 91 94 96 96 95 93
RH..............100 97 82 70 64 54 49 46 46 49 52
HEAT INDEX (F)..72 74 84 93 98 101 103 105 105 104 101
WIND CHILL (F)..72 74 84 93 98 101 103 105 105 104 101
20 FT WIND DIR..N N W W W W W W W SW SW
20 FT WIND SPD..0 0 2 5 7 8 8 8 8 9 9
20 FT WIND GUST. 3 7 10 13 13 13 13 14 14
MIX HGT (KFT)...0.6 0.6 1.4 2.3 3.1 3.8 4.6 5.3 4.9 4.5 4.1
TRANSP WIND DIR.W W W W W W W W W W W
TRANSP WIND SPD.7 8 9 9 10 10 9 9 9 10 10
DISPERSION IDX..3 8 17 28 41 47 49 55 53 55 53
LVORI...........9 7 3 3 1 1 1 1 1 1 1
TONIGHT
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........58 60 62 58 54 49 48 47 46 47 48 50
WEATHER COV.....CHC CHC SCH
WEATHER TYPE....RW RW RW
TSTM COV........CHC CHC SCH
CHC OF PCPN (%).30 30 20 20 10 10 0 0 0 0 0 0
CHC OF THDR (%).30 30 20 10 10 0 0 0 0 0 0 0
TEMP............91 85 79 77 75 76 77 76 75 74 74 74
RH..............56 67 82 87 90 90 87 90 97 100 100 97
HEAT INDEX (F)..99 92 79 77 75 76 77 76 75 74 74 74
WIND CHILL (F)..99 92 79 77 75 76 77 76 75 74 74 74
20 FT WIND DIR..SW SW SW SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..9 9 9 8 7 6 5 2 1 1 1 1
20 FT WIND GUST.14 14 14 13 10 9 7 3 2 2 2 2
MIX HGT (KFT)...3.0 1.9 0.8 0.7 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.4
TRANSP WIND DIR.W SW SW SW W W W W W W W W
TRANSP WIND SPD.10 10 10 10 10 10 9 9 8 8 7 7
DISPERSION IDX..40 25 9 9 8 7 6 4 4 4 3 3
LVORI...........1 3 4 5 5 5 5 6 7 8 9 8
MONDAY
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........47 45 42 39 50 35 39 44 55 75 80 76
WEATHER COV..... SCH CHC SCH SCH CHC LKY LKY LKY
WEATHER TYPE.... RW RW RW RW RW RW RW RW
TSTM COV........ SCH SCH CHC LKY LKY LKY
CHC OF PCPN (%).0 10 10 20 30 20 0 20 30 60 70 60
CHC OF THDR (%).0 0 10 10 10 20 0 20 30 60 70 60
TEMP............73 74 76 80 84 86 89 89 90 90 89 88
RH..............100 100 97 91 80 72 66 64 62 62 61 63
HEAT INDEX (F)..73 74 76 87 94 96 100 99 101 101 98 97
WIND CHILL (F)..73 74 76 87 94 96 100 99 101 101 98 97
20 FT WIND DIR..SW SW SW W W W W W W W W W
20 FT WIND SPD..1 2 2 3 5 6 7 7 8 8 9 8
20 FT WIND GUST.2 3 8 9 12 13 15 17 18 18 18 18
MIX HGT (KFT)...0.5 0.7 0.8 1.8 2.9 4.0 4.5 4.9 5.4 5.1 4.9 4.6
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.7 7 8 9 10 12 12 13 13 14 14 15
DISPERSION IDX..3 3 8 22 39 57 64 73 66 57 57 56
LVORI...........9 9 6 4 3 2 1 1 1 1 1 1
FORECASTER...CORLESS
REQUESTED BY...MICHELS
TYPE OF REQUEST...WILDFIRE
.TAG 2616912.4/JAX
.DELDT 07/12/26
.FORMATTERVERSION 2.0.0
.EMAIL NICK.MICHELS@USDA.GOV
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