964
FNUS72 KMLB 180919
FWSMLB

Spot Forecast for JDSP Firefest 2025...Florida Forest Service
National Weather Service Melbourne FL
519 AM EDT Sat Oct 18 2025

Forecast is based on ignition time of 1000 EDT on October 18.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...Easterly surface and transport winds this afternoon
and early evening will produce Good dispersion. Rain chances are
very low despite marine stratocumulus clouds pushing onshore.

.TODAY...

Sky/weather.........Partly sunny.
Chance of pcpn......10 percent.
Max temperature.....Around 82.
Min humidity........58 percent.
Wind (20 ft)........East winds 6 to 10 mph.
Mixing height.......Increasing to 4400 ft AGL in the afternoon.
Transport winds.....East 12 to 13 mph.
Dispersion index....10 increasing to 47.
LVORI...............1.

TIME (EDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........27  30  33  26  33  32  35  36
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).10  10  10  10  10  10  10  10
Temp............78  80  80  81  80  80  80  81
RH..............67  62  62  60  60  60  60  58
20 FT wind dir..E   E   E   E   E   E   E   E
20 FT wind spd..8   9   10  10  10  10  10  10
20 FT wind gust.14  15  16  16  17  17  17  17
Mix hgt (kft)...3.5 3.8 4.3 4.4 4.4 4.3 4.0 4.0
Transp wind dir.E   E   E   E   E   E   E   E
Transp wind spd.13  13  12  12  12  12  12  13
Dispersion idx..50  49  46  44  45  44  43  43
LVORI...........1   1   1   1   1   1   1   1

.TONIGHT...

Sky/weather.........Partly cloudy.
Chance of pcpn......10 percent.
Min temperature.....Around 71.
Max humidity........84 percent.
Wind (20 ft)........East winds 5 to 9 mph.
Mixing height.......1400 ft AGL decreasing to 600 ft AGL in the
                    late evening and overnight.
Transport winds.....East 12 to 14 mph.
Dispersion index....38 decreasing to 8 early in the evening.
LVORI...............1 increasing to 4 early in the evening.

TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........33  42  30  25  17  20  19  21  18  25  24  32
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).10  10  10  0   0   10  0   10  10  10  10  10
Temp............79  78  76  75  75  74  74  73  73  73  72  73
RH..............62  62  66  69  69  71  71  76  73  76  79  79
20 FT wind dir..E   E   E   E   E   E   E   E   SE  SE  SE  SE
20 FT wind spd..9   8   7   6   6   6   6   6   5   5   5   5
20 FT wind gust.17  16  15  15  14  14  14  14  14  14  13  13
Mix hgt (kft)...2.9 2.3 1.4 0.6 0.8 0.9 0.8 0.8 0.7 0.7 0.6 0.6
Transp wind dir.E   E   E   E   E   E   E   E   E   E   SE  E
Transp wind spd.12  13  13  14  13  14  14  13  13  13  13  12
Dispersion idx..39  37  9   9   9   9   9   9   9   9   8   7
LVORI...........1   1   3   3   3   3   3   4   3   4   4   4

.SUNDAY...

Sky/weather.........Partly sunny.
Chance of pcpn......10 percent.
Max temperature.....Around 86.
Min humidity........65 percent.
Wind (20 ft)........Southeast winds 5 to 10 mph.
Mixing height.......2400 ft AGL increasing to 3900 ft AGL late in
                    the morning.
Transport winds.....Southeast 8 to 12 mph shifting to the south 9
                    to 12 mph late in the morning.
Dispersion index....10 increasing to 23 late in the morning, then
                    increasing to 35 late in the morning increasing
                    to 43 late in the morning decreasing to 35.
LVORI...............4 decreasing to 2 late in the morning, then
                    increasing to 3 late in the afternoon.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........39  50  44  16  19  21  25  30  34  34  33  33
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).10  10  10  10  10  10  10  10  10  10  10  10
Temp............73  73  73  78  81  82  83  84  84  84  84  83
RH..............79  81  84  76  69  67  67  65  67  67  67  70
20 FT wind dir..E   SE  SE  E   SE  SE  SE  SE  SE  SE  SE  SE
20 FT wind spd..5   5   5   6   7   7   8   9   10  10  10  9
20 FT wind gust.12  12  12  12  12  13  14  14  15  15  15  15
Mix hgt (kft)...0.6 0.6 0.6 1.5 2.4 3.3 3.5 3.7 3.9 3.7 3.4 3.2
Transp wind dir.E   SE  SE  SE  S   S   S   S   S   S   S   S
Transp wind spd.12  10  8   9   10  12  12  12  12  10  10  9
Dispersion idx..7   8   12  23  35  47  47  44  41  38  36  34
LVORI...........4   4   4   3   3   1   2   1   2   2   3   3

$$
Forecaster...Kelly
Requested by...Rob Rossmanith
Type of request...PRESCRIBED
.TAG 2523826.0/MLB
.DELDT 10/18/25
.FormatterVersion 2.0.0
.EMAIL robin.rossmanith@floridadep.gov