Suppression Forecast
Issued by NWS Tampa Bay Area, FL

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743
FNUS72 KTBW 181145
FWSTBW

Spot Forecast for ASP 9a...CELM
National Weather Service Tampa Bay Ruskin FL
745 AM EDT Fri Jul 18 2025

Forecast is based on ignition time of 0800 EDT on July 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.

.DISCUSSION...
Lower rain chances today and tomorrow as relatively drier air is over
the region. Winds will start out southeast each day but will become
light and rather variable with the sea breeze in the afternoon.
Relative humidity values are expected to remain above critical levels
through the next several days.

.REST OF TODAY...

Sky/weather.........Mostly sunny (30-40 percent). Scattered showers
                    and thunderstorms late in the afternoon.
Chance of pcpn......30 percent.
Max temperature.....Around 96.
Min humidity........50 percent.
Wind (20 ft)........Southeast winds 6 to 8 mph. Gusty and erratic
                    winds expected near thunderstorms late in the
                    afternoon.
Mixing height.......4600 ft AGL.
Transport winds.....Southeast 6 to 12 mph.
Dispersion index....9 increasing to 19 late in the morning, then
                    increasing to 31 late in the morning increasing
                    to 45 late in the morning decreasing to 36.
LVORI...............5.

TIME (EDT)      8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........33     35     37     39     36
Weather cov.....                     SCTTRD SCTTRD
Weather type....NONE   NONE   NONE   RNSHWR RNSHWR
Tstm cov........                     SCTTRD SCTTRD
Chc of pcpn (%).10     10     10     30     30
Temp............77     85     91     93     92
RH..............94     77     61     55     55
20 ft wind......SE 6   SE 7   SE 7   SE 7   SE 6
20 ft wind gust.10     10     12     12     10
Mix hgt (ft)....700    2000   3400   4400   4200
Transport wind..SE 9   SE 12  SE 12  SE 9   SE 7
Dispersion idx..9      31     46     48     43
LVORI...........8      4      3      1      1

.TONIGHT...

Sky/weather.........Mostly clear (15-25 percent). Scattered showers
                    and thunderstorms early in the evening.
Chance of pcpn......30 percent.
Min temperature.....Around 75.
Max humidity........100 percent.
Wind (20 ft)........Southeast winds around 5 mph shifting to the
                    west early in the evening, then becoming light
                    early in the evening. Gusty and erratic winds
                    expected near thunderstorms early in the
                    evening.
Mixing height.......400 ft AGL.
Transport winds.....Southeast 5 to 6 mph shifting to the southwest
                    around 5 mph late in the evening, then shifting
                    to the northeast 5 to 7 mph in the late evening
                    and overnight shifting to the southeast around
                    7 mph overnight.
Dispersion index....25 decreasing to 2.
LVORI...............6.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........34     31     30     31     20     13
Weather cov.....SCTTRD
Weather type....RNSHWR NONE   NONE   NONE   NONE   NONE
Tstm cov........SCTTRD
Chc of pcpn (%).30     10     10     0      0      0
Temp............91     86     82     80     78     76
RH..............57     70     79     85     93     97
20 ft wind......SE 5   SW 3   NW 2   NE 3   E 3    E 3
20 ft wind gust.9      7      7      7      7      7
Mix hgt (ft)....3500   600    400    400    400    500
Transport wind..SE 6   S 5    N 5    NE 6   SE 7   SE 7
Dispersion idx..25     2      0      2      3      3
LVORI...........3      4      6      6      6      7

.SATURDAY...

Sky/weather.........Sunny (5-15 percent). Isolated showers and
                    thunderstorms late in the afternoon.
Chance of pcpn......20 percent.
Max temperature.....Around 96.
Min humidity........49 percent.
Wind (20 ft)........Light winds becoming southeast around 5 mph in
                    the late morning and early afternoon, then
                    becoming light late in the afternoon. Gusty and
                    erratic winds expected near thunderstorms late
                    in the afternoon.
Mixing height.......5300 ft AGL.
Transport winds.....Southeast 3 to 8 mph.
Dispersion index....6 increasing to 27.
LVORI...............5.

TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........6      7      3      6      12     16
Weather cov.....                            ISOLTD ISOLTD
Weather type....NONE   NONE   NONE   NONE   RNSHWR RNSHWR
Tstm cov........                            ISOLTD ISOLTD
Chc of pcpn (%).0      0      0      0      20     20
Temp............75     77     84     90     93     93
RH..............100    97     77     62     52     51
20 ft wind......SE 3   SE 3   SE 5   SE 5   E 3    E 3
20 ft wind gust.6      6      7      7      7      7
Mix hgt (ft)....400    700    2200   3500   4600   5100
Transport wind..SE 7   SE 8   SE 6   SE 7   E 5    E 3
Dispersion idx..3      8      22     29     27     26
LVORI...........8      8      4      3      2      2

$$
Forecaster...Carlisle
Requested by...Nick Alfano
Type of request...PRESCRIBED
.TAG 2518206.0/TBW
.DELDT 07/18/25
.FormatterVersion 2.0.0
.EMAIL alfanon@hillsboroughcounty.org