Spot Forecast
Issued by NWS Melbourne, FL

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Spot Forecast for WBTWMA Unit 4D...FWC
National Weather Service Melbourne FL
640 AM EDT Mon Jul 8 2024

Forecast is based on ignition time of 0900 EDT on July 08.
If conditions become unrepresentative, contact the National Weather
Service.

...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EDT
THIS EVENING...

.DISCUSSION...

A Heat Advisory is in effect today. Afternoon temperatures in the
mid to upper 90s and high humidity will combine to result in Heat
Index values up to 112 under partly sunny skies. This level of
heat can affect anyone without adequate precautions. Scattered to
numerous showers and scattered lightning storms are forecast to
develop into the afternoon as the east coast sea breeze moves
inland and converges with the west coast sea breeze, as well as
outflow from previous storms.

The main hazard with slow moving showers and storms will be
locally heavy rainfall (1-3" with local amounts up to 4+"). A
Marginal Risk for Excessive Rainfall exists today for this reason.
Additionally, isolated strong storms capable of wind gusts up to
40-50mph and occasional to frequent lightning strikes are forecast
this afternoon. Rain and storm chances diminish after sunset and
end by midnight. Light west-southwest winds are forecast to back
east-southeast briefly this afternoon as the east coast sea
breeze moves inland near or just to the east of the burn site.
Dispersion values will be Poor to Fair.


.REST OF TODAY...

Sky/weather.........Mostly sunny (40-50 percent) then becoming
                    mostly cloudy (65-75 percent). Showers and
                    chance of thunderstorms in the afternoon.
Chance of pcpn......80 percent.
LAL.................No Tstms until 1300, then 1-8 strikes until
                    1400, then 9-15 strikes until 1700, then 16-25
                    strikes.
Max temperature.....Around 98.
Min humidity........51 percent.
Wind (20 ft)........Light winds becoming southwest 5 to 7 mph in
                    the late morning and afternoon. Gusty and
                    erratic winds expected near thunderstorms early
                    in the afternoon. Gusty and erratic winds
                    expected near thunderstorms late in the
                    afternoon.
Mixing height.......2500 ft AGL increasing to 6000 ft AGL late in
                    the morning, then increasing to 6600 ft AGL
                    early in the afternoon decreasing to 4200 ft
                    AGL late in the afternoon.
Transport winds.....Southwest 5 to 9 mph.
Dispersion index....14 increasing to 28 late in the morning, then
                    increasing to 39 late in the afternoon
                    decreasing to 32 late in the afternoon.
LVORI...............4 decreasing to 2 late in the morning.

TIME (EDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........36  26  29  34  54  66  70  69  72
Weather cov.....                SCH CHC CHC CHC DEF
Weather type....                RW  RW  RW  RW  RW
Tstm cov........                SCH CHC CHC CHC CHC
Chc of pcpn (%).0   0   0   10  20  30  40  50  80
LAL.............1   1   1   1   2   3   3   3   4
Temp............84  89  92  94  96  96  96  96  91
RH..............82  70  62  56  51  51  51  53  64
20 FT wind dir..SW  SW  SW  SW  SW  S   SW  S   SW
20 FT wind spd..3   5   5   5   5   5   6   6   7
20 FT wind gust.5   7   7   7   7   7   8   8   9
Mix hgt (kft)...1.4 2.5 4.2 5.2 6.0 6.6 5.6 4.2 2.6
Transp wind dir.SW  SW  SW  SW  SW  SW  SW  S   W
Transp wind spd.6   6   5   5   5   5   7   7   9
Dispersion idx..10  17  24  32  36  40  43  35  32
LVORI...........4   3   2   1   1   1   1   1   1

.TONIGHT...

Sky/weather.........Mostly cloudy (65-75 percent). Showers and
                    chance of thunderstorms in the evening.
Chance of pcpn......80 percent.
LAL.................16-25 strikes until 2000, then 9-15 strikes
                    until 2200, then 1-8 strikes until 2400, then
                    No Tstms.
Min temperature.....Around 76.
Max humidity........97 percent.
Wind (20 ft)........Southwest winds around 6 mph early in the
                    evening becoming light, then becoming west
                    around 5 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 late
                    in the evening.
Mixing height.......400 ft AGL.
Transport winds.....West around 7 mph shifting to the southwest
                    around 8 mph early in the evening, then
                    shifting to the west 5 to 8 mph early in the
                    evening shifting to the southwest around 5 mph
                    overnight.
Dispersion index....15 decreasing to 4 early in the evening.
LVORI...............3 increasing to 7.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........73     81     75     80     61     56
Weather cov.....DEFNTE CHANCE S CHC
Weather type....RNSHWR RNSHWR RNSHWR NONE   NONE   NONE
Tstm cov........CHANCE CHANCE S CHC
Chc of pcpn (%).80     30     20     10     10     10
LAL.............4      3      2      1      1      1
Temp............90     82     80     79     77     77
RH..............64     82     85     88     94     94
20 ft wind......SW 6   NW 5   W 5    W 3    SW 2   SW 2
20 ft wind gust.8      7      7      5      3      3
Mix hgt (ft)....1700   1000   400    400    400    400
Transport wind..W 7    NW 8   W 8    W 5    SW 5   SW 5
Dispersion idx..19     5      5      2      2      2
LVORI...........3      5      5      6      7      7

.TUESDAY...

Sky/weather.........Partly sunny (55-65 percent). Chance of showers
                    early in the morning. Chance of thunderstorms
                    late in the morning. Showers likely late in the
                    afternoon.
Chance of pcpn......70 percent.
LAL.................No Tstms until 1100, then 9-15 strikes.
Max temperature.....Around 91.
Min humidity........68 percent.
Wind (20 ft)........Light winds becoming southwest 5 to 7 mph in
                    the late morning and afternoon. Gusty and
                    erratic winds expected near thunderstorms late
                    in the morning.
Mixing height.......2200 ft AGL increasing to 3100 ft AGL late in
                    the morning.
Transport winds.....Southwest 5 to 12 mph.
Dispersion index....4 increasing to 18 late in the morning, then
                    increasing to 30 late in the morning decreasing
                    to 22 late in the afternoon.
LVORI...............8 decreasing to 4 in the late morning and
                    afternoon.

TIME (EDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........60        47        71        72
Weather cov.....          CHANCE    CHANCE    LIKELY
Weather type....NONE      RNSHWR    RNSHWR    RNSHWR
Tstm cov........                    CHANCE    CHANCE
Chc of pcpn (%).10        50        50        70
LAL.............1         1         3         3
Temp............77        82        89        87
RH..............94        85        68        70
20 FT wind......SW 2G3    SW 3G5    SW 7G9    SW 7G9
Mix hgt (ft)....400       1400      3100      2600
Transport wind..SW 5      SW 7      W 9       W 10
Dispersion idx..2         13        30        29
LVORI...........8         4         3         3

$$
Forecaster...Fehling
Requested by...Melanie Mancuso
Type of request...PRESCRIBED
.TAG 2417567.0/MLB
.DELDT 07/08/24
.FormatterVersion 2.0.0
.EMAIL Melanie.Mancuso@myfwc.com