037
FNUS72 KTBW 131236
FWSTBW

Spot Forecast for Chass 10F_13F_01F...Florida Fish and Wildlife
National Weather Service Tampa Bay Ruskin FL
Issued by National Weather Service Melbourne FL
836 AM EDT Thu Aug 13 2026

Forecast is based on ignition time of 1000 EDT on August 13.
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.

...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 7 PM EDT THIS
EVENING...

.DISCUSSION...

Light onshore (WNW) winds that may become variable at times this
morning increase to 5 to 10 mph in the afternoon, then become
light again late this evening. Mostly dry conditions this
morning, then a few showers and lightning storms may develop in
the afternoon (chances 20-30%). Most of this activity should push
inland of the burn site by 4 PM, but a low (20% or less) rain and
storm chance will linger into the evening, then dry again
overnight. No min RH concerns. Fair afternoon smoke dispersion is
forecast. A Heat Advisory has been issued and will be in effect
from noon until 7 PM for peak afternoon heat indices up to 109.

.TODAY...

Sky/weather.........Mostly sunny (25-35 percent). Isolated showers
                    and thunderstorms in the late morning and
                    afternoon.
Chance of pcpn......20 percent.
Max temperature.....Around 91.
Min humidity........67 percent.
Wind (20 ft)........Light winds becoming west 5 to 8 mph in the
                    late morning and afternoon. Gusty and erratic
                    winds expected near thunderstorms in the late
                    morning and afternoon.
Mixing height.......3300 ft AGL.
Transport winds.....West 8 to 9 mph.
Dispersion index....Increasing to 36.
LVORI...............5.

TIME (EDT)      10 AM  NOON   2 PM   4 PM
Sky (%).........31     35     37     37
Weather cov.....ISOLTD ISOLTD ISOLTD ISOLTD
Weather type....RNSHWR RNSHWR RNSHWR RNSHWR
Tstm cov........ISOLTD ISOLTD ISOLTD ISOLTD
Chc of pcpn (%).20     20     20     20
Temp............86     90     90     89
RH..............75     69     68     68
20 ft wind......W 6    W 8    W 8    W 8
20 ft wind gust.12     13     15     14
Mix hgt (ft)....2600   3200   3100   2700
Transport wind..W 9    W 9    W 9    W 9
Dispersion idx..27     38     36     33
LVORI...........3      3      3      3

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent).
Chance of pcpn......10 percent.
Min temperature.....Around 76.
Max humidity........97 percent.
Wind (20 ft)........West winds 6 to 7 mph early in the evening
                    becoming light.
Mixing height.......400 ft AGL.
Transport winds.....West 3 to 9 mph.
Dispersion index....16 decreasing to 2 early in the evening.
LVORI...............6.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........31     32     25     28     34     35
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Chc of pcpn (%).10     10     0      0      0      0
Temp............88     83     81     79     78     77
RH..............70     82     87     90     94     95
20 ft wind......W 7    W 3    W 1    W 1    N 0    N 0
20 ft wind gust.12     8      6      5      3      2
Mix hgt (ft)....2100   1000   500    500    400    500
Transport wind..W 9    W 7    W 5    W 5    W 5    W 3
Dispersion idx..20     3      1      2      2      1
LVORI...........3      5      6      6      6      8

.FRIDAY...

Sky/weather.........Mostly sunny (30-40 percent). Scattered showers
                    early in the afternoon. Isolated thunderstorms
                    late in the afternoon. Isolated showers late in
                    the afternoon.
Chance of pcpn......30 percent.
Max temperature.....Around 93.
Min humidity........63 percent.
Wind (20 ft)........Light winds becoming west 5 to 6 mph in the
                    afternoon. Gusty and erratic winds expected
                    near thunderstorms late in the afternoon.
Mixing height.......3100 ft AGL.
Transport winds.....West around 2 mph shifting to the southwest 2
                    to 3 mph early in the morning, then shifting to
                    the west 3 to 9 mph in the late morning and
                    afternoon.
Dispersion index....5 increasing to 23.
LVORI...............5.

TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........38     32     32     27     28     33
Weather cov.....                            SCTTRD ISOLTD
Weather type....NONE   NONE   NONE   NONE   RNSHWR RNSHWR
Tstm cov........                            ISOLTD ISOLTD
Chc of pcpn (%).0      10     10     10     30     20
Temp............77     79     86     91     91     92
RH..............96     94     75     66     64     63
20 ft wind......N 0    N 0    W 1    W 3    W 6    W 6
20 ft wind gust.2      3      5      7      12     10
Mix hgt (ft)....400    600    2000   3000   3100   2200
Transport wind..W 2    SW 2   W 3    W 5    W 6    W 9
Dispersion idx..1      2      9      17     23     24
LVORI...........8      6      4      3      2      2

$$
Forecaster...MLB
Requested by...Melisa Thompson
Type of request...PRESCRIBED
.TAG 2619610.0/TBW
.DELDT 08/13/26
.FormatterVersion 2.0.0
.EMAIL melisa.thompson@myfwc.com