Spot Forecast
Issued by NWS Melbourne, FL
Issued by NWS Melbourne, FL
565
FNUS72 KMLB 170752
FWSMLB
Spot Forecast for WBTWMA - 12D...FWC
National Weather Service Melbourne FL
352 AM EDT Mon Aug 17 2026
Forecast is based on ignition time of 0900 EDT on August 17.
If conditions become unrepresentative, contact the National Weather
Service.
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 8 PM EDT
THIS EVENING...
.DISCUSSION...
Westerly flow between 5 to 10 mph is forecast near the burn site
today with no minimum RH concerns anticipated. Generally favorable
smoke dispersion values are forecast thanks to sufficient
transport winds. Moisture increases locally today, with scattered
showers and storms possible after 2 PM. Lightning strikes, wind
gusts up to 55 mph, and heavy downpours will be possible with any
storms that develop near the site. Rain and storm chances decrease
heading into the late evening hours. Similar conditions are
forecast into Tuesday, though rain and storm chances increase
slightly.
.REST OF TODAY...
Sky/weather.........Sunny (10-20 percent). Slight chance of showers
and thunderstorms late in the afternoon. Chance
of showers and thunderstorms late in the
afternoon.
Chance of pcpn......30 percent.
Max temperature.....Around 97.
Min humidity........50 percent.
Wind (20 ft)........Light winds becoming west 5 to 7 mph in the
late morning and afternoon. Gusty and erratic
winds expected near thunderstorms late in the
afternoon.
Mixing height.......2300 ft AGL increasing to 5800 ft AGL.
Transport winds.....West 8 to 10 mph.
Dispersion index....14 increasing to 60.
LVORI...............4 decreasing to 1 late in the morning.
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........7 2 4 3 13 30 30 30 30
Weather cov..... SCH SCH SCH CHC
Weather type.... RW RW RW RW
Tstm cov........ SCH SCH SCH CHC
Chc of pcpn (%).0 0 0 10 10 20 20 20 30
Temp............83 87 90 93 94 95 96 97 92
RH..............85 75 68 60 56 53 51 50 58
20 FT wind dir..W W W W W W W W W
20 FT wind spd..3 5 6 6 6 7 7 7 7
20 FT wind gust.7 8 10 12 12 13 13 13 13
Mix hgt (kft)...1.3 2.3 3.3 4.2 5.1 5.5 5.8 5.1 4.8
Transp wind dir.W W W W W W W W W
Transp wind spd.8 9 10 10 9 9 9 8 10
Dispersion idx..14 26 42 53 56 60 59 54 56
LVORI...........4 3 1 1 1 1 1 1 1
.TONIGHT...
Sky/weather.........Mostly clear (20-30 percent). Slight chance of
showers and thunderstorms early in the evening.
Chance of pcpn......20 percent.
Min temperature.....Around 78.
Max humidity........97 percent.
Wind (20 ft)........Southwest winds 5 to 7 mph shifting to the
northwest around 5 mph early in the evening,
then shifting to the east late in the evening
shifting to the west 5 to 6 mph in the late
evening and overnight. Gusty and erratic winds
expected near thunderstorms early in the
evening.
Mixing height.......1600 ft AGL decreasing to 400 ft AGL early in
the evening.
Transport winds.....West 7 to 10 mph.
Dispersion index....40 decreasing to 4.
LVORI...............1 increasing to 6.
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
Sky (%).........36 37 20 15 14 12
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 0 0 0
Temp............92 86 83 81 80 79
RH..............58 72 77 82 88 91
20 ft wind......W 7 NW 5 W 5 W 6 W 5 W 6
20 ft wind gust.12 7 8 9 9 12
Mix hgt (ft)....3300 600 400 400 400 400
Transport wind..W 10 NW 7 W 7 W 9 W 9 W 10
Dispersion idx..40 3 3 4 4 5
LVORI...........1 3 4 5 5 6
.TUESDAY...
Sky/weather.........Mostly sunny (35-45 percent). Slight chance of
showers and thunderstorms late in the morning.
Chance of showers and thunderstorms in the
afternoon.
Chance of pcpn......50 percent.
Max temperature.....Around 96.
Min humidity........58 percent.
Wind (20 ft)........West winds 6 to 8 mph. Gusty and erratic winds
expected near thunderstorms late in the
morning.
Mixing height.......1800 ft AGL increasing to 4100 ft AGL late in
the morning, then increasing to 4800 ft AGL
early in the afternoon decreasing to 2600 ft
AGL late in the afternoon.
Transport winds.....West 9 to 12 mph.
Dispersion index....5 increasing to 63, then decreasing to 15.
LVORI...............6 decreasing to 1.
TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
Sky (%).........18 15 12 30 43 48
Weather cov..... CHANCE CHANCE CHANCE
Weather type....NONE NONE NONE RNSHWR RNSHWR RNSHWR
Tstm cov........ CHANCE CHANCE CHANCE
Chc of pcpn (%).0 0 10 30 50 50
Temp............79 80 88 93 94 94
RH..............94 94 75 64 60 58
20 ft wind......W 6 W 6 W 8 W 8 W 8 W 7
20 ft wind gust.12 12 14 14 14 13
Mix hgt (ft)....400 700 2700 4100 4800 1200
Transport wind..W 10 W 9 W 12 W 12 W 12 NW 9
Dispersion idx..5 8 39 56 63 15
LVORI...........6 6 3 1 1 2
$$
Forecaster...Tollefsen
Requested by...Melanie Mancuso
Type of request...PRESCRIBED
.TAG 2619805.0/MLB
.DELDT 08/17/26
.FormatterVersion 2.0.0
.EMAIL Melanie.Mancuso@myfwc.com