536
FNUS72 KTBW 191221
FWSTBW

Spot Forecast for HC Rx LGS-30...HC ELM
National Weather Service Tampa Bay Ruskin FL
821 AM EDT Tue Aug 19 2025

Forecast is based on ignition time of 0900 EDT on August 19.
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...
Winds will be northeast today, with scattered storms expected this
afternoon and evening. Conditions will be drier tomorrow, with much
lower rain chances.

.REST OF TODAY...

Sky/weather.........Mostly sunny (30-40 percent). Isolated showers
                    and thunderstorms early in the afternoon.
                    Scattered showers and thunderstorms late in the
                    afternoon.
Chance of pcpn......50 percent.
Max temperature.....Around 94.
Min humidity........58 percent.
Wind (20 ft)........Northeast winds 6 to 9 mph. Gusty and erratic
                    winds expected near thunderstorms in the
                    afternoon.
Mixing height.......4700 ft AGL.
Transport winds.....Northeast 8 to 12 mph.
Dispersion index....16 increasing to 51.
LVORI...............4.

TIME (EDT)      9 AM   11 AM  1 PM   3 PM   5 PM
Sky (%).........18     22     40     49     50
Weather cov.....              ISOLTD SCTTRD SCTTRD
Weather type....NONE   NONE   RNSHWR RNSHWR RNSHWR
Tstm cov........              ISOLTD SCTTRD SCTTRD
Chc of pcpn (%).0      0      20     50     40
Temp............80     87     91     92     91
RH..............92     73     64     58     61
20 ft wind......NE 6   NE 7   NE 7   NE 8   NE 9
20 ft wind gust.8      12     13     14     15
Mix hgt (ft)....1200   3100   3900   4700   3600
Transport wind..NE 9   NE 9   NE 8   NE 9   N 12
Dispersion idx..16     36     45     51     51
LVORI...........6      2      1      1      1

.TONIGHT...

Sky/weather.........Partly cloudy (20-30 percent) then becoming
                    clear (0-10 percent). Scattered showers and
                    thunderstorms early in the evening.
Chance of pcpn......40 percent.
Min temperature.....Around 74.
Max humidity........96 percent.
Wind (20 ft)........Northeast winds 5 to 9 mph in the evening
                    becoming light, then becoming north around 5
                    mph after 3 am. Gusty and erratic winds
                    expected near thunderstorms early in the
                    evening.
Mixing height.......400 ft AGL.
Transport winds.....North 6 to 12 mph.
Dispersion index....37 decreasing to 3.
LVORI...............4.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........46     38     17     6      4      5
Weather cov.....SCTTRD
Weather type....RNSHWR NONE   NONE   NONE   NONE   NONE
Tstm cov........SCTTRD
Chc of pcpn (%).40     10     10     0      0      0
Temp............89     83     81     79     77     75
RH..............63     74     79     85     91     94
20 ft wind......NE 9   NE 6   NE 6   N 5    N 3    N 5
20 ft wind gust.14     12     9      8      7      7
Mix hgt (ft)....2200   500    500    500    400    400
Transport wind..N 10   NE 9   NE 8   NE 7   N 6    N 7
Dispersion idx..37     4      2      3      2      2
LVORI...........1      3      4      5      6      6

.WEDNESDAY...

Sky/weather.........Sunny (15-25 percent). Scattered showers and
                    thunderstorms late in the afternoon.
Chance of pcpn......30 percent.
Max temperature.....Around 94.
Min humidity........55 percent.
Wind (20 ft)........North winds 5 to 9 mph. Gusty and erratic winds
                    expected near thunderstorms late in the
                    afternoon.
Mixing height.......5700 ft AGL.
Transport winds.....North 8 to 13 mph.
Dispersion index....9 increasing to 54.
LVORI...............4.

TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........5      6      11     21     36     33
Weather cov.....                            SCTTRD SCTTRD
Weather type....NONE   NONE   NONE   NONE   RNSHWR RNSHWR
Tstm cov........                            SCTTRD SCTTRD
Chc of pcpn (%).0      0      0      10     30     30
Temp............75     76     84     88     91     91
RH..............95     95     78     68     58     56
20 ft wind......N 5    N 6    N 7    N 8    NW 8   NW 9
20 ft wind gust.8      9      10     13     14     15
Mix hgt (ft)....400    700    2300   3800   5200   5400
Transport wind..N 8    N 13   N 12   N 10   N 9    NW 8
Dispersion idx..5      12     31     47     54     56
LVORI...........7      5      3      1      1      1

$$
Forecaster...Carlisle
Requested by...HC ELM
Type of request...PRESCRIBED
.TAG 2520213.0/TBW
.DELDT 08/19/25
.FormatterVersion 2.0.0
.EMAIL raymonds@hcfl.gov