Spot Forecast
Issued by NWS Tampa Bay Area, FL
Issued by NWS Tampa Bay Area, FL
449
FNUS72 KTBW 241058
FWSTBW
Spot Forecast for RP_SB1...SWFWMD
National Weather Service Tampa Bay Ruskin FL
658 AM EDT Tue Sep 24 2024
Forecast is based on ignition time of 1000 EDT on September 24.
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...
Steady east-southeast winds will be in place today with occasional gusts reaching
15-20 mph at times throughout the afternoon hours. In addition, isolated to
scattered showers and thunderstorm could develop this afternoon and early evening
with greatest rain chances from around 2-6 PM but any activity that develops should
be rather brief. Otherwise, generally good dispersion conditions are expected today
given the steady easterly transport winds that are expected. Conditions then
deteriorate considerably on Wednesday as what is currently called Potential Tropical
Cyclone Nine moves north and strengthens as it becomes Tropical Storm Helene later today.
.REST OF TODAY...
Sky/weather.........Mostly sunny (25-35 percent). Isolated showers
and thunderstorms early in the afternoon.
Scattered showers and thunderstorms late in the
afternoon, then isolated showers and
thunderstorms late in the afternoon.
Chance of pcpn......30 percent.
LAL.................1 until 1400, then 2 until 1600, then 3 until
1700, then 2.
Max temperature.....Around 94.
Min humidity........56 percent.
Wind (20 ft)........East winds 9 to 10 mph. Gusty and erratic winds
expected near thunderstorms late in the
afternoon.
Mixing height.......4600 ft AGL.
Transport winds.....East 12 to 14 mph.
Dispersion index....35 increasing to 51 late in the morning, then
increasing to 61 early in the afternoon
decreasing to 48 late in the afternoon.
LVORI...............2.
TIME (EDT) 10 AM NOON 2 PM 4 PM
Sky (%).........9 18 27 47
Weather cov..... ISOLTD SCTTRD
Weather type....NONE NONE RNSHWR RNSHWR
Tstm cov........ ISOLTD SCTTRD
Chc of pcpn (%).0 0 20 30
LAL.............1 1 2 3
Temp............84 90 92 91
RH..............77 64 59 59
20 ft wind......E 9 E 10 E 10 E 10
20 ft wind gust.14 14 15 16
Mix hgt (ft)....2200 3500 4600 4100
Transport wind..E 14 E 12 E 12 E 13
Dispersion idx..35 55 62 52
LVORI...........3 1 1 1
.TONIGHT...
Sky/weather.........Partly cloudy (40-50 percent) then becoming
mostly cloudy (50-60 percent) then becoming
partly cloudy (45-55 percent) then becoming
mostly cloudy (45-55 percent) then becoming
partly cloudy (40-50 percent) then becoming
mostly cloudy (50-60 percent) then becoming
partly cloudy (45-55 percent) then becoming
mostly cloudy (45-55 percent).
Chance of pcpn......10 percent.
LAL.................1.
Min temperature.....Around 76.
Max humidity........94 percent.
Wind (20 ft)........East winds 10 to 12 mph.
Mixing height.......700 ft AGL.
Transport winds.....East 12 to 16 mph.
Dispersion index....32 decreasing to 13.
LVORI...............3.
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
Sky (%).........43 54 47 47 57 51
Weather cov.....
Weather type....NONE NONE NONE NONE NONE NONE
Tstm cov........
Chc of pcpn (%).10 10 10 0 0 0
LAL.............1 1 1 1 1 1
Temp............89 83 81 79 77 77
RH..............62 75 80 85 90 92
20 ft wind......E 10 E 10 E 10 E 10 E 10 E 12
20 ft wind gust.17 17 18 17 16 16
Mix hgt (ft)....2500 800 1000 900 800 700
Transport wind..E 13 E 13 E 16 E 16 E 15 E 14
Dispersion idx..32 12 12 15 14 13
LVORI...........1 4 4 4 5 5
.WEDNESDAY...
Sky/weather.........Mostly cloudy (70-80 percent). Isolated showers
and thunderstorms early in the morning.
Widespread showers and scattered thunderstorms
late in the afternoon.
Chance of pcpn......80 percent.
LAL.................1 until 0800, then 2 until 1400, then 3.
Max temperature.....Around 91.
Min humidity........66 percent.
Wind (20 ft)........East winds 12 to 17 mph. Gusty and erratic
winds expected near thunderstorms early in the
morning.
Mixing height.......4200 ft AGL.
Transport winds.....Southeast 15 to 20 mph.
Dispersion index....13 increasing to 30 late in the morning, then
increasing to 47 late in the morning increasing
to 58 late in the morning decreasing to 46
decreasing to 38 late in the afternoon.
LVORI...............3.
TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
Sky (%).........58 57 68 56 73 84
Weather cov..... ISOLTD ISOLTD ISOLTD WIDSPD WIDSPD
Weather type....NONE RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
Tstm cov........ ISOLTD ISOLTD ISOLTD SCTTRD SCTTRD
Chc of pcpn (%).0 20 20 20 80 80
LAL.............1 2 2 2 3 3
Temp............77 77 85 89 90 86
RH..............93 94 76 70 66 74
20 ft wind......E 12 E 13 E 14 E 15 E 16 E 17
20 ft wind gust.16 17 18 21 22 24
Mix hgt (ft)....700 900 2200 3400 4200 2800
Transport wind..E 16 E 15 E 18 SE 18 SE 17 E 18
Dispersion idx..12 15 47 60 49 42
LVORI...........5 5 3 1 1 3
$$
Forecaster...Giarratana
Requested by...LRB
Type of request...PRESCRIBED
.TAG 2422950.0/TBW
.DELDT 09/24/24
.FormatterVersion 2.0.0
.EMAIL danny.harris@swfwmd.state.fl.us