791
FNUS72 KTBW 181313
FWSTBW
SPOT FORECAST FOR CHINSEGUT WEA UNIT 04B...FWC
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
913 AM EDT THU JUN 18 2026
FORECAST IS BASED ON IGNITION TIME OF 0900 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
DISCUSSION
MINIMUM HUMIDITY VALUES WILL REMAIN WELL ABOVE CRITICAL LEVELS
AS MOISTURE INCREASES THROUGH THE PERIOD. GUSTY WINDS WILL
PERSIST SUPPORTING HIGH DISPERSIONS TODAY. IN ADDITION, HIGH
HUMIDITY VALUES COMBINED WITH HOT TEMPERATURES WILL RESULT IN
CRITICAL HEAT TODAY AND POSSIBLY TOMORROW.
TODAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT). SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS EARLY IN THE
AFTERNOON.
CHANCE OF PCPN......20 PERCENT.
MAX TEMPERATURE.....AROUND 96.
MIN HUMIDITY........52 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 8 TO 13 MPH. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS EARLY IN THE
AFTERNOON.
MIXING HEIGHT.......5200 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 14 TO 17 MPH.
DISPERSION INDEX....32 INCREASING TO 58 LATE IN THE MORNING, THEN
INCREASING TO 73 LATE IN THE MORNING DECREASING
TO 65 LATE IN THE AFTERNOON.
LVORI...............2.
TIME (EDT) 9 AM 11 AM 1 PM 3 PM 5 PM
SKY (%).........34 45 46 40 34
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE
TSTM COV........
CHC OF PCPN (%).0 10 10 10 10
TEMP............85 91 94 96 94
RH..............75 62 55 52 54
20 FT WIND......S 8 S 9 SW 12 SW 12 SW 13
20 FT WIND GUST.13 15 20 21 20
MIX HGT (FT)....2200 4200 5200 4800 4600
TRANSPORT WIND..S 14 S 15 S 15 SW 16 SW 17
DISPERSION IDX..32 77 69 64 67
LVORI...........2 1 1 1 1
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING
MOSTLY CLOUDY (50-60 PERCENT) THEN BECOMING
PARTLY CLOUDY (30-40 PERCENT).
CHANCE OF PCPN......10 PERCENT.
MIN TEMPERATURE.....AROUND 79.
MAX HUMIDITY........90 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 13 MPH IN THE EVENING
BECOMING LIGHT, THEN BECOMING SOUTH AROUND 5
MPH EARLY IN THE MORNING.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 8 TO 16 MPH.
DISPERSION INDEX....51 DECREASING TO 7.
LVORI...............4.
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........35 56 44 36 35 26
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CHC OF PCPN (%).10 0 10 10 0 0
TEMP............93 88 83 81 80 79
RH..............56 67 77 83 86 89
20 FT WIND......SW 13 SW 8 SW 5 S 3 S 3 S 3
20 FT WIND GUST.18 14 10 8 7 8
MIX HGT (FT)....3500 1200 600 500 400 400
TRANSPORT WIND..SW 16 SW 13 SW 9 S 9 SW 8 S 8
DISPERSION IDX..51 11 4 4 4 3
LVORI...........1 3 4 5 6 6
JUNETEENTH
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT). SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS LATE IN THE MORNING.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE
IN THE AFTERNOON.
CHANCE OF PCPN......20 PERCENT.
MAX TEMPERATURE.....AROUND 93.
MIN HUMIDITY........58 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 10 MPH SHIFTING TO THE
WEST 12 TO 13 MPH IN THE AFTERNOON. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS LATE
IN THE MORNING. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS LATE IN THE
AFTERNOON.
MIXING HEIGHT.......4800 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 8 TO 14 MPH SHIFTING TO THE WEST 13
TO 14 MPH LATE IN THE AFTERNOON.
DISPERSION INDEX....8 INCREASING TO 30 LATE IN THE MORNING, THEN
INCREASING TO 51 LATE IN THE MORNING INCREASING
TO 66 LATE IN THE MORNING DECREASING TO 53
DECREASING TO 43 LATE IN THE AFTERNOON.
LVORI...............4.
TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
SKY (%).........26 30 33 32 33 48
WEATHER COV..... S CHC S CHC S CHC
WEATHER TYPE....NONE NONE RNSHWR NONE RNSHWR RNSHWR
TSTM COV........ S CHC S CHC S CHC
CHC OF PCPN (%).0 10 20 10 20 20
TEMP............79 81 88 91 92 91
RH..............90 85 70 61 58 60
20 FT WIND......S 5 S 6 SW 9 W 12 W 13 W 13
20 FT WIND GUST.8 10 15 18 21 21
MIX HGT (FT)....400 1000 3400 4400 4800 3700
TRANSPORT WIND..S 8 S 9 SW 13 W 14 W 14 W 13
DISPERSION IDX..3 12 51 68 56 50
LVORI...........6 4 2 1 1 1
FORECASTER...DELERME
REQUESTED BY...MATTHEW KOENIG
TYPE OF REQUEST...PRESCRIBED
.TAG 2615756.0/TBW
.DELDT 06/18/26
.FORMATTERVERSION 2.0.0
.EMAIL MATTHEW.KOENIG@MYFWC.COM
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