597
FNUS72 KJAX 201844
FWSJAX
SPOT FORECAST FOR OSCEOLA IA...USDA FOREST SERVICE
NATIONAL WEATHER SERVICE JACKSONVILLE FL
244 PM EDT SAT JUN 20 2026
FORECAST IS BASED ON FORECAST START TIME OF 0800 EDT ON JUNE 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.
..HIGH DAYTIME DISPERSION LIKELY MONDAY AND TUESDAY
DISCUSSION
MAINLY NORTHWEST AND WEST FLOW ON SUNDAY WITH ANOTHER GOOD CHANCE OF
SHOWERS AND THUNDERSTORMS BY THE EARLY AFTERNOON HOURS. SOME
LINGERING SHOWER ACTIVITY POSSIBLE IN THE EVENING. OVERALL, A SLIGHTLY
LOWER CHANCE OF SHOWERS AND STORMS ON MONDAY BUT ESPECIALLY ON TUESDAY.
ON TUESDAY, MAY BE LOOKING AT ONLY 20 TO MAYBE 30 PERCENT CHANCE
OF SHOWERS AND STORMS.
AFTERNOON MIN RH ON SUNDAY FORECAST TO BE ABOUT 55-60 PERCENT,
AND TRENDING TO THE LOWER TO MID 50S ON MONDAY AND TUESDAY.
TEMPERATURES WILL ALSO TREND UP TOWARD THE LOWER AND MID 90S
DURING THE SUNDAY TO TUESDAY PERIOD.
HIGHER MIXING HEIGHTS AND SOMEWHAT STRONGER TRANSPORT WINDS ON
MONDAY AND TUESDAY ARE EXPECTED TO PRODUCE HIGHER DISPERSIONS,
PROBABLY REACHING 75 OR MORE BOTH DAYS.
SUNDAY
TIME (EDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........56 45 38 40 37 43 55 52 54 53
WEATHER COV.....PTY SCH SCH SCH SCH SCH CHC CHS SCH
WEATHER TYPE....FOG RW RW RW RW RW RW RW RW
TSTM COV........ SCH SCH SCH CHC CHC SCH SCH
CHC OF PCPN (%).10 10 20 20 20 20 30 40 30 20
CHC OF THDR (%).10 10 10 20 20 20 30 40 30 20
TEMP............72 76 80 83 85 88 89 89 90 89
RH..............100 94 85 77 72 63 61 59 58 59
HEAT INDEX (F)..72 76 85 90 94 97 98 97 98 97
WIND CHILL (F)..72 76 85 90 94 97 98 97 98 97
20 FT WIND DIR..N N NW W W W W W W W
20 FT WIND SPD..0 0 1 2 3 3 3 3 3 3
20 FT WIND GUST.5 6 7 8 10 12 12 13 13 13
MIX HGT (KFT)...1.0 1.4 2.0 2.6 3.4 4.1 4.6 4.8 4.8 4.3
TRANSP WIND DIR.NW NW NW NW NW W W W W W
TRANSP WIND SPD.6 6 7 8 8 8 8 9 10 10
DISPERSION IDX..7 11 18 26 34 41 46 56 62 57
LVORI...........8 5 3 3 3 1 1 1 1 1
SUNDAY NIGHT
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........58 52 40 45 40 40 30 23 21 32 38 34
WEATHER COV.....CHC SCH SCH
WEATHER TYPE....RW RW RW
TSTM COV........CHC SCH SCH
CHC OF PCPN (%).30 20 20 10 10 0 0 0 0 0 0 0
CHC OF THDR (%).30 20 20 10 10 0 0 0 0 0 0 0
TEMP............89 87 83 80 79 77 77 76 75 75 75 74
RH..............59 63 74 82 82 88 88 94 94 94 94 93
HEAT INDEX (F)..97 94 90 85 79 77 77 76 75 75 75 74
WIND CHILL (F)..97 94 90 85 79 77 77 76 75 75 75 74
20 FT WIND DIR..W W W N N N N N N N N N
20 FT WIND SPD..3 2 1 0 0 0 0 0 0 0 0 0
20 FT WIND GUST.13 12 8 6 5 5 5 6 6 6 6 6
MIX HGT (KFT)...3.2 1.8 0.7 0.4 0.4 0.5 0.5 0.5 0.5 0.4 0.4 0.4
TRANSP WIND DIR.W W W W W W W W SW W W W
TRANSP WIND SPD.10 9 8 8 8 8 8 8 8 7 7 7
DISPERSION IDX..43 22 4 4 4 4 4 4 3 3 3 3
LVORI...........1 2 3 4 5 5 6 6 6 6 6 6
MONDAY
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........39 46 45 63 48 33 34 36 38 38 38 38
WEATHER COV..... PTY SCH SCH SCH SCH
WEATHER TYPE.... FOG RW RW RW RW
TSTM COV........ SCH SCH SCH SCH
CHC OF PCPN (%).0 0 10 10 10 10 10 10 20 20 20 20
CHC OF THDR (%).0 0 10 10 10 10 10 10 20 20 20 20
TEMP............74 73 75 79 82 86 88 90 91 91 91 91
RH..............97 100 97 88 79 68 63 60 58 56 56 56
HEAT INDEX (F)..74 73 75 79 89 94 97 99 101 100 100 100
WIND CHILL (F)..74 73 75 79 89 94 97 99 101 100 100 100
20 FT WIND DIR..N N N W W W W W W W W W
20 FT WIND SPD..0 0 0 1 2 3 5 6 6 6 6 6
20 FT WIND GUST.5 6 5 7 9 10 12 14 15 16 16 17
MIX HGT (KFT)...0.5 0.6 1.0 1.5 2.2 3.1 4.1 5.1 5.8 6.2 6.1 5.6
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.7 7 7 7 8 9 9 10 12 12 13 13
DISPERSION IDX..3 3 8 14 23 35 48 65 81 85 91 84
LVORI...........7 8 6 4 3 3 1 1 1 1 1 1
FORECASTER...SHASHY
REQUESTED BY...STUART COOMBS
TYPE OF REQUEST...WILDFIRE
.TAG 2615870.0/JAX
.DELDT 06/20/26
.FORMATTERVERSION 2.0.0
.EMAIL STUART.COOMBS@USDA.GOV
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