635
FNUS72 KTBW 221155
FWSTBW
SPOT FORECAST FOR ST2026S15...SWFWMD
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
755 AM EDT WED JUL 22 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 EDT ON JULY 22.
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.
DISCUSSION
SUFFICIENT LOW LEVEL MOISTURE WILL HOLD OVER THE REGION FOR THE
NEXT SEVERAL DAYS WHICH WILL KEEP MINIMUM AFTERNOON RELATIVE
HUMIDITY VALUES ABOVE CRITICAL LEVELS. ELEVATED DISPERSIONS WILL
OCCUR THIS AFTERNOON ACROSS PORTIONS OF THE REGION.
REST OF TODAY
SKY/WEATHER.........SUNNY (20-30 PERCENT).
CHANCE OF PCPN......10 PERCENT.
MAX TEMPERATURE.....AROUND 95.
MIN HUMIDITY........51 PERCENT.
WIND (20 FT)........SOUTH WINDS 8 TO 10 MPH.
MIXING HEIGHT.......4800 FT AGL.
TRANSPORT WINDS.....SOUTH 9 TO 16 MPH.
DISPERSION INDEX....13 INCREASING TO 29 LATE IN THE MORNING, THEN
INCREASING TO 48 LATE IN THE MORNING INCREASING
TO 65 LATE IN THE MORNING DECREASING TO 55
DECREASING TO 45 LATE IN THE AFTERNOON.
LVORI...............3.
TIME (EDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........11 11 16 16 15 18 17 26 30 34
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 10 10 10 10
TEMP............79 82 87 89 92 94 94 95 94 93
RH..............89 81 71 65 58 54 51 51 52 55
20 FT WIND DIR..SE S S S S S S S SW SW
20 FT WIND SPD..8 8 9 10 10 10 9 9 9 9
20 FT WIND GUST.14 15 16 17 17 17 16 15 15 14
MIX HGT (KFT)...0.9 1.7 2.7 3.5 3.9 4.4 4.8 4.6 4.4 3.9
TRANSP WIND DIR.S S S S S S S S S S
TRANSP WIND SPD.12 15 16 15 14 13 12 10 10 9
DISPERSION IDX..13 29 48 63 69 68 64 61 55 45
LVORI...........5 4 3 2 1 1 1 1 1 1
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT).
CHANCE OF PCPN......10 PERCENT.
MIN TEMPERATURE.....AROUND 77.
MAX HUMIDITY........92 PERCENT.
WIND (20 FT)........WEST WINDS 6 TO 8 MPH EARLY IN THE EVENING
BECOMING LIGHT.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 9 MPH SHIFTING TO THE SOUTHEAST
AROUND 5 MPH OVERNIGHT.
DISPERSION INDEX....31 DECREASING TO 2.
LVORI...............4.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........29 23 25 33 33 33 40 44 43 32 24 20
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).10 10 10 10 0 0 0 0 0 0 0 0
TEMP............92 90 87 85 83 82 81 81 80 79 78 77
RH..............57 62 68 72 76 78 81 83 85 86 88 90
20 FT WIND DIR..W W W W SW S SE E E E E E
20 FT WIND SPD..8 7 6 3 2 2 1 1 1 1 1 2
20 FT WIND GUST.13 12 9 8 6 5 3 3 2 3 3 5
MIX HGT (KFT)...3.1 2.2 1.1 0.8 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.4
TRANSP WIND DIR.SW W W SW SW SW S SE SE SE SE E
TRANSP WIND SPD.9 9 8 7 6 5 5 5 5 5 5 5
DISPERSION IDX..31 16 4 0 0 2 2 2 2 2 2 2
LVORI...........1 2 3 4 4 5 5 5 5 6 7 7
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).
CHANCE OF PCPN......10 PERCENT.
MAX TEMPERATURE.....AROUND 95.
MIN HUMIDITY........52 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING EAST AROUND 5 MPH EARLY IN
THE AFTERNOON, THEN SHIFTING TO THE NORTHWEST 5
TO 7 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......5400 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 5 TO 7 MPH SHIFTING TO THE NORTH
AROUND 7 MPH LATE IN THE AFTERNOON.
DISPERSION INDEX....5 INCREASING TO 31.
LVORI...............4.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........19 25 29 38 43 52 40 49 60 69 55 51
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 10 10 10 10
TEMP............77 77 78 82 87 89 92 94 94 95 94 93
RH..............91 92 90 82 71 64 58 55 53 52 54 56
20 FT WIND DIR..E E SE SE E E E E E N NW NW
20 FT WIND SPD..2 2 2 2 3 3 3 3 5 5 6 7
20 FT WIND GUST.5 5 6 6 6 7 7 7 8 8 9 10
MIX HGT (KFT)...0.4 0.4 0.6 1.6 2.7 3.6 4.3 4.8 5.1 5.4 4.8 3.9
TRANSP WIND DIR.E SE SE SE SE SE SE SE E SE E N
TRANSP WIND SPD.5 6 7 7 7 7 6 6 5 6 7 7
DISPERSION IDX..2 4 7 15 24 31 32 31 29 31 32 31
LVORI...........6 6 5 4 3 2 1 1 2 1 1 1
FORECASTER...PEARCE
REQUESTED BY...ANNE BLANCHARD
TYPE OF REQUEST...PRESCRIBED
.TAG 2617942.0/TBW
.DELDT 07/22/26
.FORMATTERVERSION 2.0.0
.EMAIL ANNE.BLANCHARD@WATERMATTERS.ORG
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