Spot Forecast
Issued by NWS Tampa Bay Area, FL

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009
FNUS72 KTBW 171247
FWSTBW

Spot Forecast for Chinsegut WEA, 11B and 12B renewal...FWC
National Weather Service Tampa Bay Ruskin FL
847 AM EDT Tue Jun 17 2025

Forecast is based on ignition time of 0900 EDT on June 17.
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...

Drier air remains in place across the region keeping lower rain
chances at the site today. Moisture should increase slightly on
Wednesday, which should support more storm coverage. Southeasterly
winds prevail and under this flow showers and storms develop later
in the afternoon and evening. Humidity remains above critical values.

.REST OF TODAY...

Sky/weather.........Sunny (20-30 percent). Slight chance of showers
                    and thunderstorms late in the afternoon.
Max temperature.....Around 93.
Min humidity........48 percent.
Wind (20 ft)........Light winds becoming south 5 to 8 mph in the
                    late morning and afternoon, then shifting to
                    the southwest around 9 mph late in the
                    afternoon. Gusty and erratic winds expected
                    near thunderstorms late in the afternoon.
Mixing height.......6900 ft AGL.
Transport winds.....South 7 to 8 mph.
Dispersion index....13 increasing to 57.
LVORI...............3.

TIME (EDT)      9 AM   11 AM  1 PM   3 PM   5 PM
Sky (%).........8      15     21     28     41
Weather cov.....                     S CHC  S CHC
Weather type....NONE   NONE   NONE   RNSHWR RNSHWR
Tstm cov........                     S CHC  S CHC
Temp............80     87     89     91     91
RH..............84     65     57     53     52
20 ft wind......S 3    S 6    S 7    S 8    SW 9
20 ft wind gust.5      7      9      9      10
Mix hgt (ft)....1600   4100   5700   6900   6100
Transport wind..S 7    S 7    S 8    S 8    S 8
Dispersion idx..13     35     48     57     55
LVORI...........4      2      1      1      1

.TONIGHT...

Sky/weather.........Partly cloudy (40-50 percent). Chance of
                    showers and thunderstorms early in the evening,
                    then slight chance of showers and thunderstorms
                    early in the evening. Slight chance of showers
                    and thunderstorms in the late evening and
                    overnight.
Min temperature.....Around 72.
Max humidity........99 percent.
Wind (20 ft)........West winds 5 to 7 mph early in the evening
                    becoming light. Gusty and erratic winds
                    expected near thunderstorms early in the
                    evening. Gusty and erratic winds expected near
                    thunderstorms in the late evening and
                    overnight.
Mixing height.......400 ft AGL.
Transport winds.....West 6 to 10 mph shifting to the north around 3
                    mph late in the evening, then shifting to the
                    southeast 3 to 6 mph overnight.
Dispersion index....40 decreasing to 3.
LVORI...............5.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........45     39     45     39     46     41
Weather cov.....CHANCE S CHC  S CHC  S CHC
Weather type....RNSHWR RNSHWR RNSHWR RNSHWR NONE   NONE
Tstm cov........CHANCE S CHC  S CHC  S CHC
Temp............88     84     79     77     75     74
RH..............58     70     80     88     92     95
20 ft wind......SW 7   W 5    S 3    E 2    SE 2   E 2
20 ft wind gust.8      6             3      3      3
Mix hgt (ft)....4000   1700   500    400    400    400
Transport wind..W 10   W 10   W 6    E 5    SE 5   SE 5
Dispersion idx..40     5      0      2      2      2
LVORI...........1      3      4      6      6      8

.WEDNESDAY...

Sky/weather.........Mostly sunny (35-45 percent). Chance of showers
                    and thunderstorms late in the afternoon.
Max temperature.....Around 96.
Min humidity........48 percent.
Wind (20 ft)........Light winds becoming south 5 to 6 mph in the
                    late morning and early afternoon, then shifting
                    to the west around 6 mph late in the afternoon.
                    Gusty and erratic winds expected near
                    thunderstorms late in the afternoon.
Mixing height.......6400 ft AGL.
Transport winds.....South 6 to 8 mph.
Dispersion index....6 increasing to 46.
LVORI...............4.

TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........44     37     25     37     46     50
Weather cov.....                            CHANCE CHANCE
Weather type....NONE   NONE   NONE   NONE   RNSHWR RNSHWR
Tstm cov........                            CHANCE CHANCE
Temp............74     75     86     91     95     94
RH..............94     93     72     59     49     49
20 ft wind......SE 2   S 3    S 5    S 5    S 6    SW 6
20 ft wind gust.5      6      7      9      12     10
Mix hgt (ft)....400    800    2700   4800   6400   6000
Transport wind..SE 7   S 8    S 7    S 6    S 6    S 6
Dispersion idx..3      8      20     35     47     48
LVORI...........6      6      3      1      1      1

$$
Forecaster...Flannery
Requested by...Matthew Koenig
Type of request...PRESCRIBED
.TAG 2500000.0/TBW
.DELDT 06/17/25
.FormatterVersion 2.0.0
.EMAIL matthew.koenig@myfwc.com