035
FNUS72 KTBW 181147
FWSTBW
SPOT FORECAST FOR GS2026S9...SWFWMD
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
747 AM EDT TUE AUG 18 2026
FORECAST IS BASED ON FORECAST START TIME OF 1000 EDT ON AUGUST 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.
...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM EDT
THIS EVENING...
DISCUSSION
HIGH PRESSURE CONTINUES TO BE IN CONTROL WITH WARM AND HUMID
CONDITIONS EXPECTED THROUGH THE PERIOD WITH MINIMAL FIRE
CONCERNS. MOISTURE INCREASE GRADUALLY THROUGH THE WEEK AND ALONG
WITH IT CHANCES OF SHOWERS AND STORMS. MOST OF IT TODAY SHOULD
STAY NORTH OF THE I-4, BUT COVERAGE WILL INCREASE THROUGH THE
WEEK. THE MAIN CONCERN WILL BE THE HEAT.
REST OF TODAY
SKY/WEATHER.........SUNNY (15-25 PERCENT). ISOLATED SHOWERS AND
THUNDERSTORMS LATE IN THE MORNING. SCATTERED
SHOWERS AND THUNDERSTORMS LATE IN THE
AFTERNOON, THEN ISOLATED SHOWERS AND
THUNDERSTORMS LATE IN THE AFTERNOON.
CHANCE OF PCPN......30 PERCENT.
MAX TEMPERATURE.....AROUND 96.
MIN HUMIDITY........55 PERCENT.
WIND (20 FT)........WEST WINDS 8 TO 12 MPH. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS LATE IN THE
MORNING.
MIXING HEIGHT.......4200 FT AGL.
TRANSPORT WINDS.....WEST 12 TO 14 MPH.
DISPERSION INDEX....39 INCREASING TO 57 LATE IN THE MORNING, THEN
DECREASING TO 49 LATE IN THE AFTERNOON.
LVORI...............2.
TIME (EDT) 10 AM NOON 2 PM 4 PM
SKY (%).........12 23 22 20
WEATHER COV..... ISOLTD SCTTRD SCTTRD
WEATHER TYPE....NONE RNSHWR RNSHWR RNSHWR
TSTM COV........ ISOLTD SCTTRD SCTTRD
CHC OF PCPN (%).10 20 30 30
TEMP............88 92 94 95
RH..............76 63 58 55
20 FT WIND......W 8 W 10 W 10 W 10
20 FT WIND GUST.14 16 17 18
MIX HGT (FT)....2800 3800 3900 3700
TRANSPORT WIND..W 12 W 13 W 13 W 13
DISPERSION IDX..39 59 58 55
LVORI...........3 1 1 1
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING
MOSTLY CLOUDY (55-65 PERCENT) THEN BECOMING
PARTLY CLOUDY (25-35 PERCENT). ISOLATED SHOWERS
AND THUNDERSTORMS EARLY IN THE EVENING.
ISOLATED SHOWERS AND THUNDERSTORMS EARLY IN THE
MORNING.
CHANCE OF PCPN......20 PERCENT.
MIN TEMPERATURE.....AROUND 79.
MAX HUMIDITY........94 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 10 MPH. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS EARLY IN THE
EVENING. GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS EARLY IN THE MORNING.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....WEST 7 TO 14 MPH.
DISPERSION INDEX....36 DECREASING TO 6.
LVORI...............4.
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........35 46 61 57 50 24
WEATHER COV.....ISOLTD ISOLTD
WEATHER TYPE....RNSHWR RNSHWR NONE NONE NONE NONE
TSTM COV........ISOLTD ISOLTD
CHC OF PCPN (%).20 20 10 10 10 10
TEMP............93 87 84 81 81 80
RH..............59 70 80 86 89 92
20 FT WIND......W 10 NW 8 W 6 W 5 W 5 W 5
20 FT WIND GUST.17 14 12 8 7 8
MIX HGT (FT)....2900 600 400 400 400 400
TRANSPORT WIND..W 14 NW 10 W 7 W 7 W 8 W 8
DISPERSION IDX..36 9 4 5 5 4
LVORI...........1 3 4 5 6 6
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT). SCATTERED
THUNDERSTORMS IN THE MORNING. NUMEROUS SHOWERS
THROUGH THE DAY. NUMEROUS THUNDERSTORMS IN THE
AFTERNOON.
CHANCE OF PCPN......70 PERCENT.
MAX TEMPERATURE.....AROUND 95.
MIN HUMIDITY........62 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 8 MPH. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS EARLY IN THE
MORNING. GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS LATE IN THE MORNING, THEN GUSTY
AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS
EARLY IN THE AFTERNOON. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS LATE IN THE
AFTERNOON.
MIXING HEIGHT.......4700 FT AGL.
TRANSPORT WINDS.....WEST 7 TO 12 MPH.
DISPERSION INDEX....5 INCREASING TO 19 LATE IN THE MORNING, THEN
INCREASING TO 37 LATE IN THE MORNING INCREASING
TO 49 EARLY IN THE AFTERNOON DECREASING TO 35.
LVORI...............4.
TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
SKY (%).........8 13 28 46 68 64
WEATHER COV.....ISOLTD ISOLTD NUMRUS NUMRUS NUMRUS
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR NONE
TSTM COV........ISOLTD SCTTRD NUMRUS
CHC OF PCPN (%).20 20 70 60 70 10
TEMP............79 80 87 91 91 91
RH..............94 94 80 71 68 66
20 FT WIND......W 5 W 5 W 7 W 8 W 7 W 7
20 FT WIND GUST.8 8 12 14 14 14
MIX HGT (FT)....400 500 2500 3400 3800 2700
TRANSPORT WIND..W 8 W 7 W 9 W 9 W 12 W 8
DISPERSION IDX..3 7 23 41 50 39
LVORI...........6 6 3 2 1 2
FORECASTER...PEARCE
REQUESTED BY...BRIAN HALE
TYPE OF REQUEST...WILDFIRE
.TAG 2619907.0/TBW
.DELDT 08/18/26
.FORMATTERVERSION 2.0.0
.EMAIL BRIAN.HALE@SWFWMD.STATE.FL.US
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