263  
FNUS72 KTBW 181628  
FWSTBW  
 
SPOT FORECAST FOR LP 15...FWC  
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL  
1228 PM EDT THU JUN 18 2026  
 
FORECAST IS BASED ON IGNITION TIME OF 1300 EDT ON JUNE 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 UNTIL 7 PM EDT THIS EVENING  
 
DANGEROUS HEAT WILL BE AROUND THIS AFTERNOON WITH FEELS LIKE  
TEMPERATURES BETWEEN 105 AND 110 DEGREES. WINDS WILL BE MAINLY  
OUT OF THE SOUTH THROUGH THE AFTERNOON AROUND 10 MPH. ISOLATED  
SHOWERS WILL BE POSSIBLE MAINLY IN THE LATE AFTERNOON TO EARLY  
EVENING TIMEFRAME.  
   
DISCUSSION  
 
   
REST OF TODAY  
 
SKY/WEATHER.........PARTLY SUNNY (45-55 PERCENT). SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS EARLY IN THE  
AFTERNOON. CHANCE OF SHOWERS AND THUNDERSTORMS  
LATE IN THE AFTERNOON.  
CHANCE OF PCPN......40 PERCENT.  
MAX TEMPERATURE.....AROUND 96.  
MIN HUMIDITY........50 PERCENT.  
WIND (20 FT)........SOUTH WINDS 7 TO 8 MPH. GUSTY AND ERRATIC WINDS  
EXPECTED NEAR THUNDERSTORMS LATE IN THE  
AFTERNOON.  
MIXING HEIGHT.......5800 FT AGL.  
TRANSPORT WINDS.....SOUTH 9 TO 10 MPH.  
DISPERSION INDEX....63 DECREASING TO 43.  
LVORI...............1.  
 
TIME (EDT) 1PM 2PM 3PM 4PM 5PM  
SKY (%).........46 53 52 49 55  
WEATHER COV..... SCH CHC CHC CHC  
WEATHER TYPE.... RW RW RW RW  
TSTM COV........ SCH CHC CHC CHC  
CHC OF PCPN (%).10 20 30 30 40  
TEMP............93 94 95 94 93  
RH..............54 52 50 52 54  
20 FT WIND DIR..S S S S S  
20 FT WIND SPD..8 8 8 7 7  
20 FT WIND GUST.14 14 15 14 14  
MIX HGT (KFT)...5.1 5.7 5.8 5.2 3.9  
TRANSP WIND DIR.S S S S SW  
TRANSP WIND SPD.10 10 9 9 9  
DISPERSION IDX..64 64 61 53 43  
LVORI...........1 1 1 1 1  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT) THEN BECOMING  
PARTLY CLOUDY (30-40 PERCENT). CHANCE OF  
SHOWERS AND THUNDERSTORMS EARLY IN THE EVENING,  
THEN SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
EARLY IN THE EVENING.  
CHANCE OF PCPN......50 PERCENT.  
MIN TEMPERATURE.....AROUND 76.  
MAX HUMIDITY........96 PERCENT.  
WIND (20 FT)........SOUTHEAST WINDS 6 TO 7 MPH SHIFTING TO THE  
SOUTHWEST AROUND 5 MPH EARLY IN THE EVENING,  
THEN BECOMING LIGHT IN THE LATE EVENING AND  
OVERNIGHT. GUSTY AND ERRATIC WINDS EXPECTED  
NEAR THUNDERSTORMS EARLY IN THE EVENING.  
MIXING HEIGHT.......400 FT AGL.  
TRANSPORT WINDS.....SOUTH 5 TO 8 MPH.  
DISPERSION INDEX....30 DECREASING TO 3.  
LVORI...............5.  
 
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........52 64 68 66 66 67 65 60 53 52 40 32  
WEATHER COV.....CHC CHC SCH  
WEATHER TYPE....RW RW RW  
TSTM COV........CHC CHC SCH  
CHC OF PCPN (%).40 50 20 10 10 10 10 0 0 0 0 0  
TEMP............92 88 85 83 81 81 80 79 78 77 77 76  
RH..............57 65 73 80 84 85 88 90 92 95 95 96  
20 FT WIND DIR..SE SE SW S SW S S S S S S S  
20 FT WIND SPD..7 6 5 3 2 2 2 1 1 2 2 2  
20 FT WIND GUST.13 12 10 8 7 6 6 5 5 6 6 7  
MIX HGT (KFT)...1.9 1.1 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4  
TRANSP WIND DIR.S S SW SW SW S S S S S S S  
TRANSP WIND SPD.8 8 7 7 6 6 5 5 5 5 5 6  
DISPERSION IDX..30 16 5 1 1 2 2 2 2 2 2 3  
LVORI...........2 2 3 4 5 6 6 6 6 7 7 8  
   
JUNETEENTH  
 
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT). SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS EARLY IN THE  
AFTERNOON. CHANCE OF SHOWERS AND THUNDERSTORMS  
LATE IN THE AFTERNOON.  
CHANCE OF PCPN......50 PERCENT.  
MAX TEMPERATURE.....AROUND 96.  
MIN HUMIDITY........51 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 7 MPH EARLY IN  
THE MORNING, THEN SHIFTING TO THE SOUTHWEST 6  
TO 7 MPH LATE IN THE AFTERNOON. GUSTY AND  
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS LATE  
IN THE AFTERNOON.  
MIXING HEIGHT.......6800 FT AGL.  
TRANSPORT WINDS.....SOUTH 7 TO 10 MPH SHIFTING TO THE WEST AROUND 8  
MPH LATE IN THE AFTERNOON.  
DISPERSION INDEX....7 INCREASING TO 21 LATE IN THE MORNING, THEN  
INCREASING TO 32 LATE IN THE MORNING INCREASING  
TO 46 LATE IN THE MORNING DECREASING TO 37.  
LVORI...............5.  
 
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........27 29 26 26 34 39 37 46 63 55 49 53  
WEATHER COV..... SCH CHC CHC CHC  
WEATHER TYPE.... RW RW RW RW  
TSTM COV........ SCH CHC CHC CHC  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 20 30 40 50  
TEMP............76 76 78 82 87 90 92 93 95 94 94 93  
RH..............96 96 94 86 73 63 58 55 51 52 53 54  
20 FT WIND DIR..S S S S S S S SW SW SW SW SW  
20 FT WIND SPD..3 3 5 5 6 6 7 6 6 6 6 7  
20 FT WIND GUST.7 8 9 9 10 12 12 12 12 13 13 14  
MIX HGT (KFT)...0.4 0.4 0.9 2.0 2.9 3.7 4.5 5.3 5.8 6.8 6.5 3.8  
TRANSP WIND DIR.S S S S S S SW SW SW W W SW  
TRANSP WIND SPD.7 8 9 9 10 9 8 7 7 8 8 8  
DISPERSION IDX..3 6 10 21 32 42 48 50 49 48 44 37  
LVORI...........8 7 5 4 3 2 1 1 1 1 1 1  
 
 
FORECASTER...SHIVELEY  
REQUESTED BY...BRIAN CHRIST  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2615771.0/TBW  
.DELDT 06/18/26  
.FORMATTERVERSION 2.0.0  
.EMAIL BRIAN.CHRIST@MYFWC.COM  
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