222
FNUS72 KTBW 111149
FWSTBW
SPOT FORECAST FOR ST2026S4...SWFWMD
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
749 AM EDT TUE AUG 11 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 EDT ON AUGUST 11.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE AT (813) 645-2323 IF YOU HAVE QUESTIONS OR
CONCERNS WITH THIS FORECAST.
...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 7 PM EDT THIS
EVENING...
DISCUSSION
WARM AND HUMID CONDITIONS WILL CONTINUE TODAY, WITH NEAR CALM
WINDS THIS MORNING TURNING NORTHWEST THIS AFTERNOON AS THE SEA
BREEZE DEVELOPS AND MOVES INLAND. ONCE THIS HAPPENS, THERE IS THE
POTENTIAL FOR A THUNDERSTORM TO DEVELOP LIKELY JUST EAST OF THE
BURN AREA. THE MOST LIKELY TIME FOR THIS TO OCCUR WOULD BE AFTER
3PM. GUSTY AND ERRATIC WINDS, ALONG WITH FREQUENT LIGHTNING WILL
BE POSSIBLE IN THE VICINITY. IF NO THUNDERSTORMS FORM THIS
AFTERNOON, IT WILL FEEL EXTREMELY HOT BY LATE AFTERNOON, WITH A
HIGH RISK FOR HEAT ILLNESSES TODAY WITHOUT PROPER HYDRATION AND
BREAKS.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT).
CHANCE OF PCPN......10 PERCENT.
MAX TEMPERATURE.....AROUND 93.
MIN HUMIDITY........60 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTHWEST 5 TO 7 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......4100 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 3 MPH SHIFTING TO THE WEST 3 TO 9
MPH LATE IN THE MORNING.
DISPERSION INDEX....8 INCREASING TO 31.
LVORI...............4.
TIME (EDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........31 31 30 25 22 21 19 19 28 32
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 10 10 10 10 10 10 10 10
TEMP............78 81 86 89 91 92 92 92 92 91
RH..............92 86 76 69 64 62 62 62 60 63
20 FT WIND DIR..E N N SW W W NW NW NW NW
20 FT WIND SPD..1 0 0 2 3 5 6 7 7 7
20 FT WIND GUST.3 2 2 5 6 8 10 12 12 12
MIX HGT (KFT)...0.4 0.8 1.8 2.9 3.8 4.1 4.1 3.5 3.1 2.5
TRANSP WIND DIR.SE S S W W W W W W W
TRANSP WIND SPD.3 3 3 3 3 5 6 7 9 9
DISPERSION IDX..3 5 8 12 18 25 30 33 33 29
LVORI...........6 5 4 3 3 2 1 1 1 2
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT).
CHANCE OF PCPN......0 PERCENT.
MIN TEMPERATURE.....AROUND 77.
MAX HUMIDITY........93 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 6 TO 7 MPH BECOMING LIGHT.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....WEST 5 TO 9 MPH.
DISPERSION INDEX....21 DECREASING TO 2.
LVORI...............5.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........29 20 21 19 27 28 26 28 29 30 19 21
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............90 88 85 83 82 81 81 80 80 79 78 78
RH..............65 68 76 80 83 85 87 87 88 89 91 91
20 FT WIND DIR..NW NW NW NW NW W W W W W W N
20 FT WIND SPD..7 6 3 3 2 2 1 1 1 1 1 0
20 FT WIND GUST.10 9 8 7 6 5 3 3 3 2 2 2
MIX HGT (KFT)...2.0 1.2 0.6 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
TRANSP WIND DIR.W W NW NW W W W W W W W NW
TRANSP WIND SPD.9 8 7 6 6 5 5 6 6 6 6 6
DISPERSION IDX..21 11 3 1 1 2 2 2 2 2 2 2
LVORI...........3 3 4 5 6 6 6 6 6 6 6 7
WEDNESDAY
SKY/WEATHER.........SUNNY (20-30 PERCENT).
CHANCE OF PCPN......0 PERCENT.
MAX TEMPERATURE.....AROUND 92.
MIN HUMIDITY........62 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTHWEST 5 TO 10 MPH IN
THE LATE MORNING AND AFTERNOON.
MIXING HEIGHT.......3900 FT AGL.
TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
DISPERSION INDEX....4 INCREASING TO 44.
LVORI...............4.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........18 23 18 19 29 27 26 19 16 17 20 18
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............78 77 79 82 86 89 90 91 90 90 91 89
RH..............92 93 91 85 75 69 65 64 64 64 62 65
20 FT WIND DIR..N N N NW NW NW NW NW NW W W W
20 FT WIND SPD..0 0 0 1 5 7 8 9 10 10 10 9
20 FT WIND GUST.2 2 3 5 8 10 13 14 16 16 15 15
MIX HGT (KFT)...0.4 0.4 0.6 1.7 2.8 3.3 3.7 3.8 3.9 3.7 3.5 3.1
TRANSP WIND DIR.NW NW NW NW NW NW W W W W W W
TRANSP WIND SPD.6 5 6 7 8 9 9 10 10 10 10 10
DISPERSION IDX..2 2 6 15 26 37 43 47 48 48 45 39
LVORI...........7 7 6 5 3 2 1 1 1 1 1 2
FORECASTER...FLANNERY
REQUESTED BY...ANNE BLANCHARD
TYPE OF REQUEST...PRESCRIBED
.TAG 2619423.0/TBW
.DELDT 08/11/26
.FORMATTERVERSION 2.0.0
.EMAIL ANNE.BLANCHARD@WATERMATTERS.ORG
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