045
FNUS72 KTBW 181127
FWSTBW

Spot Forecast for BSP_16...CELM
National Weather Service Tampa Bay Ruskin FL
727 AM EDT Fri Sep 18 2026

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

High pressure holding north of Florida will keep east and northeast
winds in place today and Saturday. Rain chances will gradually
increase from south to north through the start of the weekend. No
humidity concerns.

.REST OF TODAY...

Sky/weather.........Mostly sunny (25-35 percent). Isolated showers
                    and thunderstorms late in the afternoon.
                    Scattered showers and thunderstorms late in the
                    afternoon.
Chance of pcpn......30 percent.
Max temperature.....Around 92.
Min humidity........59 percent.
Wind (20 ft)........Northeast winds 8 to 12 mph. Gusty and erratic
                    winds expected near thunderstorms late in the
                    afternoon.
Mixing height.......4200 ft AGL.
Transport winds.....East 10 to 14 mph.
Dispersion index....10 increasing to 58.
LVORI...............4.

TIME (EDT)      8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........16     16     34     44     43
Weather cov.....                     ISOLTD ISOLTD
Weather type....NONE   NONE   NONE   RNSHWR RNSHWR
Tstm cov........                     ISOLTD ISOLTD
Chc of pcpn (%).0      0      10     20     20
Temp............74     82     87     88     88
RH..............95     80     68     64     62
20 ft wind......NE 8   NE 10  NE 12  E 12   E 10
20 ft wind gust.14     16     17     17     17
Mix hgt (ft)....500    2000   3900   4200   4200
Transport wind..NE 10  E 14   E 14   E 12   E 12
Dispersion idx..10     35     47     44     57
LVORI...........6      3      1      1      1

.TONIGHT...

Sky/weather.........Mostly cloudy (50-60 percent) then becoming
                    partly cloudy (20-30 percent). Scattered
                    showers and thunderstorms early in the evening,
                    then isolated showers and thunderstorms early
                    in the evening.
Chance of pcpn......40 percent.
Min temperature.....Around 72.
Max humidity........100 percent.
Wind (20 ft)........East winds 5 to 9 mph in the evening and
                    overnight becoming light, then becoming
                    northeast around 5 mph early in the morning.
                    Gusty and erratic winds expected near
                    thunderstorms early in the evening.
Mixing height.......400 ft AGL.
Transport winds.....East 6 to 12 mph.
Dispersion index....43 decreasing to 4.
LVORI...............5.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........55     55     37     19     11     6
Weather cov.....SCTTRD ISOLTD
Weather type....RNSHWR RNSHWR NONE   NONE   NONE   NONE
Tstm cov........SCTTRD ISOLTD
Chc of pcpn (%).30     20     10     0      0      0
Temp............85     78     77     75     74     73
RH..............69     84     88     92     95     98
20 ft wind......E 9    NE 7   E 6    E 5    NE 3   NE 3
20 ft wind gust.16     13     12     9      7      7
Mix hgt (ft)....2800   500    500    400    400    400
Transport wind..E 12   E 9    E 8    E 7    E 6    NE 6
Dispersion idx..43     6      1      3      3      2
LVORI...........1      4      6      6      8      9

.SATURDAY...

Sky/weather.........Sunny (20-30 percent) then becoming partly
                    sunny (55-65 percent). Isolated thunderstorms
                    late in the afternoon. Scattered showers late
                    in the afternoon. Scattered thunderstorms late
                    in the afternoon.
Chance of pcpn......50 percent.
Max temperature.....Around 90.
Min humidity........62 percent.
Wind (20 ft)........Northeast winds 5 to 6 mph. Gusty and erratic
                    winds expected near thunderstorms late in the
                    afternoon. Gusty and erratic winds expected
                    near thunderstorms late in the afternoon.
Mixing height.......5400 ft AGL.
Transport winds.....Northeast 6 to 8 mph.
Dispersion index....4 increasing to 16 late in the morning, then
                    increasing to 32 late in the morning decreasing
                    to 26 late in the afternoon.
LVORI...............5.

TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........5      7      10     26     56     64
Weather cov.....                                   SCTTRD
Weather type....NONE   NONE   NONE   NONE   NONE   RNSHWR
Tstm cov........                                   ISOLTD
Chc of pcpn (%).0      0      0      0      0      30
Temp............72     73     81     86     89     86
RH..............99     99     83     70     62     67
20 ft wind......NE 5   NE 5   E 6    E 6    E 6    E 5
20 ft wind gust.7      8      9      9      9      9
Mix hgt (ft)....400    400    2300   4000   4900   4400
Transport wind..NE 6   NE 6   NE 7   NE 6   E 6    E 8
Dispersion idx..2      6      20     32     36     32
LVORI...........9      9      3      3      1      3

$$
Forecaster...Pearce
Requested by...Nick Alfano
Type of request...PRESCRIBED
.TAG 2622113.0/TBW
.DELDT 09/18/26
.FormatterVersion 2.0.0
.EMAIL alfanon@hillsboroughcounty.org