114
FNUS72 KJAX 121328
FWSJAX
SPOT FORECAST FOR NLSF EAST FIELD RX...FLORIDA FOREST SERVICE
NATIONAL WEATHER SERVICE JACKSONVILLE FL
828 AM EST MON JAN 12 2026
FORECAST IS BASED ON IGNITION TIME OF 0900 EST ON JANUARY 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.
DISCUSSION
-AREAS OF LOW DISPERSIONS TUESDAY
HIGH PRESSURE WILL BUILD TO THE NORTHWEST THROUGH TODAY WITH BREEZY
NORTH TO NORTH NORTHEASTERLY WINDS 10-15 MPH GUSTING TO 20-25 MPH.
DISPERSIONS WILL BE IN THE FAIR RANGE DUE TO LOW MIXING HEIGHTS.
SKIES WILL BE PARTLY CLOUDY UNDER SOME MID AND HIGH LEVEL CLOUDS.
DRY CONDITIONS PREVAIL AND MINRH VALUES STAY ABOVE CRITICAL LEVELS.
TONIGHT, NORTHERLY WINDS WILL DECREASE TO 6-10 MPH WITH GUSTS UP
TO 12-15 MPH WHILE LOW CLOUDS INCREASE FROM THE EAST CREATING
MOSTLY CLOUDY SKIES.
TUESDAY, HIGH PRESSURE WILL BUILD OVER THE AREA WITH NORTHERLY
WINDS LIGHTER COMPARED TODAY 5-10 MPH. WEAKER SURFACE AND TRANSPORT
WINDS WILL CREATE AREAS OF LOW DISPERSIONS.
REST OF TODAY
TIME (EST) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........45 39 38 37 37 41 46 50 58
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............43 48 53 57 59 61 61 61 60
RH..............62 58 57 55 57 56 56 58 58
HEAT INDEX (F)..42 46 50 53 57 59 59 59 56
WIND CHILL (F)..36 41 46 53 57 59 59 59 56
20 FT WIND DIR..N NE NE NE NE NE NE NE NE
20 FT WIND SPD..12 12 13 12 12 12 12 12 9
20 FT WIND GUST.17 17 20 18 17 17 17 17 15
MIX HGT (KFT)...1.2 1.5 1.9 2.3 2.7 2.8 2.9 3.1 2.4
TRANSP WIND DIR.NE NE NE NE NE NE NE NE NE
TRANSP WIND SPD.16 16 15 14 13 12 12 12 12
DISPERSION IDX..24 30 34 37 37 36 36 37 33
LVORI...........2 2 1 1 1 1 1 1 1
TONIGHT
TIME (EST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........67 75 74 73 73 74 76 77 77 77 78 70
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............56 53 51 49 48 47 46 45 45 44 44 44
RH..............66 74 77 80 80 79 79 82 76 79 76 73
HEAT INDEX (F)..53 50 47 46 44 43 42 41 41 40 40 39
WIND CHILL (F)..53 48 44 43 41 39 38 37 37 36 36 35
20 FT WIND DIR..NE NE NE N N N N N N N N N
20 FT WIND SPD..9 8 8 8 8 8 8 8 8 8 7 7
20 FT WIND GUST.14 13 13 13 13 13 13 13 12 12 10 10
MIX HGT (KFT)...1.7 1.0 1.0 1.0 0.9 0.9 0.9 0.9 0.8 0.7 0.6 0.6
TRANSP WIND DIR.NE NE NE N N N N N N N N N
TRANSP WIND SPD.13 13 13 13 13 13 13 13 12 12 10 10
DISPERSION IDX..27 10 9 9 9 9 9 9 8 8 7 7
LVORI...........3 3 4 4 4 4 4 4 4 4 3 4
TUESDAY
TIME (EST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........63 55 55 56 56 58 61 63 63 62 62 65
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............43 43 47 50 54 57 60 62 63 63 63 61
RH..............76 76 68 66 64 62 60 58 58 60 60 65
HEAT INDEX (F)..39 40 43 47 51 56 60 63 65 66 65 63
WIND CHILL (F)..35 36 39 44 51 56 60 63 65 66 65 63
20 FT WIND DIR..N N N N N N N N N N N N
20 FT WIND SPD..7 6 6 6 6 6 5 5 5 5 5 3
20 FT WIND GUST.9 10 10 10 10 10 9 9 9 8 8 8
MIX HGT (KFT)...0.6 0.5 0.7 0.8 0.9 1.3 1.7 2.1 2.3 2.6 2.9 2.0
TRANSP WIND DIR.N N N NE NE NE N N N NE NE NE
TRANSP WIND SPD.10 10 10 10 9 8 8 7 7 6 6 6
DISPERSION IDX..7 10 9 9 11 14 17 17 18 19 21 15
LVORI...........4 4 3 3 2 2 2 2 2 2 2 2
FORECASTER...BRICKER
REQUESTED BY...TERRY SHEEHAN
TYPE OF REQUEST...PRESCRIBED
.TAG 2528829.0/JAX
.DELDT 01/12/26
.FORMATTERVERSION 2.0.0
.EMAIL TERRY.SHEEHAN@FDACS.GOV
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