281
FNUS72 KTBW 181133
FWSTBW
SPOT FORECAST FOR ST2025S16...SWFWMD
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
733 AM EDT THU SEP 18 2025
FORECAST IS BASED ON IGNITION TIME OF 0800 EDT ON SEPTEMBER 18.
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
DRIER AIR WILL FILTER BACK IN TODAY REDUCING STORM CHANCES TO AROUND
20% OVER THE BURN SITE. WINDS WILL REMAIN OUT OF THE EAST AND NORTHEAST
THROUGHOUT THE DAY WITH SPEEDS AROUND 5 TO 10 MPH.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT). ISOLATED SHOWERS
AND THUNDERSTORMS LATE IN THE AFTERNOON.
CHANCE OF PCPN......20 PERCENT.
MAX TEMPERATURE.....AROUND 90.
MIN HUMIDITY........58 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTHEAST 5 TO 6 MPH IN
THE LATE MORNING AND AFTERNOON. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS LATE
IN THE AFTERNOON.
MIXING HEIGHT.......4500 FT AGL.
TRANSPORT WINDS.....EAST 6 TO 9 MPH.
DISPERSION INDEX....8 INCREASING TO 45.
LVORI...............4.
TIME (EDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........44 37 28 35 41 49 52 50 53 55
WEATHER COV..... ISO ISO ISO ISO
WEATHER TYPE.... RW RW RW RW
TSTM COV........ ISO ISO ISO ISO
CHC OF PCPN (%).0 0 0 10 10 10 20 20 20 20
TEMP............72 75 79 82 85 87 87 89 88 87
RH..............96 92 83 74 67 64 61 58 60 61
20 FT WIND DIR..NE NE NE NE NE NE NE NE NE NE
20 FT WIND SPD..3 3 5 6 6 6 6 6 6 6
20 FT WIND GUST.6 7 8 9 10 10 10 12 12 10
MIX HGT (KFT)...0.4 1.0 1.4 2.5 3.3 4.0 4.5 4.5 4.2 3.7
TRANSP WIND DIR.E E E E E E E E E E
TRANSP WIND SPD.6 7 7 7 7 8 8 9 9 9
DISPERSION IDX..6 10 16 22 30 37 43 46 47 43
LVORI...........7 5 4 3 3 2 1 1 1 1
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT) THEN BECOMING
MOSTLY CLEAR (15-25 PERCENT). ISOLATED SHOWERS
EARLY IN THE EVENING. ISOLATED THUNDERSTORMS
EARLY IN THE EVENING. SCATTERED SHOWERS EARLY
IN THE EVENING.
CHANCE OF PCPN......30 PERCENT.
MIN TEMPERATURE.....AROUND 71.
MAX HUMIDITY........97 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 5 TO 6 MPH IN THE EVENING
BECOMING LIGHT. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS EARLY IN THE
EVENING.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....EAST 6 TO 10 MPH.
DISPERSION INDEX....32 DECREASING TO 4.
LVORI...............4.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........52 54 64 54 37 28 24 12 12 8 7 15
WEATHER COV.....ISO SCT
WEATHER TYPE....RW RW
TSTM COV........ISO ISO
CHC OF PCPN (%).20 30 10 10 0 0 0 0 0 0 0 0
TEMP............86 84 81 79 78 77 76 74 73 72 72 72
RH..............63 68 74 77 79 82 84 90 91 92 94 97
20 FT WIND DIR..NE NE NE NE E E E E NE NE NE NE
20 FT WIND SPD..6 6 6 6 6 5 5 3 3 2 3 3
20 FT WIND GUST.12 10 10 9 9 9 8 7 7 7 7 7
MIX HGT (KFT)...3.2 1.2 0.5 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.4
TRANSP WIND DIR.E E E E E E E E E E NE NE
TRANSP WIND SPD.9 8 9 10 9 9 9 8 7 8 6 6
DISPERSION IDX..32 18 6 3 3 4 4 4 3 3 2 3
LVORI...........1 2 4 4 5 5 5 6 6 6 6 7
FRIDAY
SKY/WEATHER.........SUNNY (10-20 PERCENT).
CHANCE OF PCPN......10 PERCENT.
MAX TEMPERATURE.....AROUND 91.
MIN HUMIDITY........56 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTHEAST 5 TO 10 MPH
EARLY IN THE MORNING.
MIXING HEIGHT.......5100 FT AGL.
TRANSPORT WINDS.....NORTHEAST 7 TO 12 MPH.
DISPERSION INDEX....5 INCREASING TO 65.
LVORI...............5.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........9 11 14 6 8 10 12 14 16 18 20 23
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 10 10 10 10
TEMP............71 72 72 76 80 83 86 87 89 90 89 88
RH..............96 94 96 88 79 71 64 60 57 56 58 59
20 FT WIND DIR..NE NE N NE NE NE NE NE NE NE NE NE
20 FT WIND SPD..3 3 5 6 6 7 8 8 9 9 9 10
20 FT WIND GUST.7 7 7 9 10 12 13 13 14 15 15 16
MIX HGT (KFT)...0.4 0.4 0.3 1.1 2.2 3.2 3.8 4.5 5.1 4.9 4.7 4.6
TRANSP WIND DIR.NE N NE NE NE NE NE NE NE NE NE NE
TRANSP WIND SPD.7 7 7 9 10 10 10 10 10 10 12 12
DISPERSION IDX..2 3 7 16 29 41 50 56 61 66 67 62
LVORI...........8 7 6 5 3 2 1 1 1 1 1 1
FORECASTER...SHIVELEY
REQUESTED BY...ANNE BLANCHARD
TYPE OF REQUEST...PRESCRIBED
.TAG 2522136.0/TBW
.DELDT 09/18/25
.FORMATTERVERSION 2.0.0
.EMAIL ANNE.BLANCHARD@WATERMATTERS.ORG
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page