383
FNUS72 KMLB 210737
FWSMLB

Spot Forecast for WBTWMA - Unit 9...FWC
National Weather Service Melbourne FL
337 AM EDT Tue Jul 21 2026

Forecast is based on ignition time of 0900 EDT on July 21.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

South to southeast winds will pick up to 10 to 15 mph today, with
wind gusts to 20 mph possible at times. These winds will support
very good dispersion values near the burn site. No minimum RH
concerns. Drier air settles across the area, keeping rain and
storm chances near the burn site around 20 percent. Any activity
that does manage to develop will diminish into the late evening
hours. Similar conditions are anticipated on Wednesday, with lower
wind speeds of 5 to 10 mph.

.REST OF TODAY...

Sky/weather.........Mostly sunny (20-30 percent). Slight chance of
                    showers and thunderstorms late in the
                    afternoon.
Chance of pcpn......20 percent.
Max temperature.....Around 96.
Min humidity........51 percent.
Wind (20 ft)........South winds 12 to 13 mph. Gusty and erratic
                    winds expected near thunderstorms late in the
                    afternoon.
Mixing height.......3600 ft AGL increasing to 5400 ft AGL in the
                    afternoon.
Transport winds.....South 14 to 17 mph.
Dispersion index....39 increasing to 69, then decreasing to 54.
LVORI...............4 decreasing to 1.

TIME (EDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........34  33  28  18  21  28  34  34  31
Weather cov.....                    SCH SCH SCH SCH
Weather type....                    RW  RW  RW  RW
Tstm cov........                    SCH SCH SCH SCH
Chc of pcpn (%).10  10  10  10  10  20  20  20  20
Temp............82  86  89  91  93  94  95  96  94
RH..............82  75  68  62  58  54  54  51  53
20 FT wind dir..S   S   S   S   S   S   S   SE  SE
20 FT wind spd..12  12  13  13  13  12  12  12  12
20 FT wind gust.20  20  20  20  21  21  21  20  18
Mix hgt (kft)...2.0 2.8 3.6 4.2 5.2 5.3 5.3 5.4 4.2
Transp wind dir.S   S   S   S   S   S   S   S   S
Transp wind spd.17  17  17  17  16  15  15  14  14
Dispersion idx..39  51  60  64  69  64  61  59  54
LVORI...........4   3   1   1   1   1   1   1   1

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent). Slight chance of
                    showers and thunderstorms early in the evening.
Chance of pcpn......20 percent.
Min temperature.....Around 76.
Max humidity........96 percent.
Wind (20 ft)........Southeast winds 6 to 12 mph. Gusty and erratic
                    winds expected near thunderstorms early in the
                    evening.
Mixing height.......1500 ft AGL decreasing to 400 ft AGL early in
                    the evening.
Transport winds.....South 9 to 14 mph.
Dispersion index....44 decreasing to 4.
LVORI...............1 increasing to 6.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........46     31     25     16     12     14
Weather cov.....S CHC  S CHC
Weather type....RNSHWR RNSHWR NONE   NONE   NONE   NONE
Tstm cov........S CHC  S CHC
Chc of pcpn (%).20     20     10     10     10     10
Temp............92     84     82     79     79     78
RH..............57     74     81     88     85     87
20 ft wind......SE 12  SE 9   SE 8   SE 7   S 6    S 6
20 ft wind gust.17     13     13     13     12     12
Mix hgt (ft)....2800   800    500    500    400    400
Transport wind..SE 14  SE 12  SE 9   S 9    S 9    S 9
Dispersion idx..44     8      6      5      4      4
LVORI...........1      3      4      5      5      6

.WEDNESDAY...

Sky/weather.........Sunny (15-25 percent).
Chance of pcpn......10 percent.
Max temperature.....Around 96.
Min humidity........51 percent.
Wind (20 ft)........South winds 6 to 10 mph.
Mixing height.......2100 ft AGL increasing to 6500 ft AGL.
Transport winds.....South 8 to 10 mph.
Dispersion index....4 increasing to 61.
LVORI...............6 decreasing to 1.

TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........24     17     14     9      12     15
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Chc of pcpn (%).10     10     0      0      0      10
Temp............77     78     86     91     94     96
RH..............90     93     72     60     53     51
20 ft wind......S 6    S 6    S 7    S 8    S 8    SE 9
20 ft wind gust.12     9      12     13     14     14
Mix hgt (ft)....400    800    3000   4700   5800   5500
Transport wind..S 8    S 9    S 10   S 9    S 8    S 9
Dispersion idx..4      9      37     51     54     61
LVORI...........6      5      3      1      1      1

$$
Forecaster...Tollefsen
Requested by...Melanie Mancuso
Type of request...PRESCRIBED
.TAG 2617822.0/MLB
.DELDT 07/21/26
.FormatterVersion 2.0.0
.EMAIL Melanie.Mancuso@myfwc.com