494
FNUS72 KMLB 180755
FWSMLB

Spot Forecast for Atlantic Ridge D5...Florida Park Service
National Weather Service Melbourne FL
355 AM EDT Fri Jul 18 2025

Forecast is based on ignition time of 0800 EDT on July 18.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

Light southeasterly winds early this morning pick up to 10 to 15
mph out of the east-southeast as the east coast sea breeze
develops and moves inland. There are no minimum RH concerns near
the burn site today, with fair to good afternoon smoke dispersion
values forecast. Mostly dry conditions are anticipated, with rain
and storm chances around 10 percent. Heat will be a concern near
the burn site, with highs reaching the low 90s and peak heat
indices climbing into the 100 to 105 range. Similar conditions are
forecast into Saturday, though winds become more onshore and
smoke dispersions become poor.

.REST OF TODAY...

Sky/weather.........Sunny (20-30 percent).
Chance of pcpn......10 percent.
Max temperature.....Around 91.
Min humidity........68 percent.
Wind (20 ft)........Southeast winds 6 to 10 mph.
Mixing height.......2900 ft AGL increasing to 3400 ft AGL late in
                    the morning.
Transport winds.....Southeast 10 to 14 mph.
Dispersion index....21 increasing to 44.
LVORI...............5 decreasing to 2.

TIME (EDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........36  31  33  32  31  25  15  16  20  12
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).10  10  10  10  10  10  10  10  10  10
Temp............80  83  86  87  88  88  89  89  90  88
RH..............93  85  79  78  75  73  70  71  68  72
20 FT wind dir..SE  SE  SE  SE  SE  SE  SE  E   E   E
20 FT wind spd..6   7   8   9   9   10  10  10  10  9
20 FT wind gust.14  14  15  15  15  16  16  16  15  15
Mix hgt (kft)...1.0 2.4 2.9 3.1 3.3 3.3 3.4 3.4 3.1 3.0
Transp wind dir.SE  SE  SE  SE  SE  E   SE  SE  SE  E
Transp wind spd.14  14  14  13  12  10  12  10  12  12
Dispersion idx..21  42  47  45  44  40  44  42  40  40
LVORI...........5   4   3   3   3   3   2   2   2   3

.TONIGHT...

Sky/weather.........Mostly clear (15-25 percent).
Chance of pcpn......10 percent.
Min temperature.....Around 77.
Max humidity........97 percent.
Wind (20 ft)........East winds 5 to 8 mph early in the evening
                    becoming light.
Mixing height.......1200 ft AGL decreasing to 500 ft AGL in the
                    late evening and overnight.
Transport winds.....East 9 to 12 mph.
Dispersion index....34 decreasing to 5.
LVORI...............3 increasing to 7.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........12     19     20     17     18     18
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Chc of pcpn (%).10     10     0      0      0      0
Temp............87     82     80     79     79     78
RH..............73     84     90     92     91     94
20 ft wind......E 8    E 5    E 3    E 2    E 2    SE 2
20 ft wind gust.14     13     12     12     10     10
Mix hgt (ft)....2600   1200   600    600    700    600
Transport wind..E 10   E 10   E 10   E 12   E 10   E 9
Dispersion idx..34     5      5      5      5      5
LVORI...........3      5      6      6      6      7

.SATURDAY...

Sky/weather.........Sunny (5-15 percent).
Chance of pcpn......10 percent.
Max temperature.....Around 91.
Min humidity........68 percent.
Wind (20 ft)........Light winds becoming east 5 to 7 mph in the
                    late morning and afternoon.
Mixing height.......2400 ft AGL increasing to 3300 ft AGL late in
                    the morning.
Transport winds.....East 6 to 9 mph.
Dispersion index....5 increasing to 29.
LVORI...............8 decreasing to 3.

TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........15     12     11     8      7      5
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Chc of pcpn (%).0      10     10     10     10     10
Temp............77     79     85     88     89     88
RH..............97     92     79     73     68     69
20 ft wind......SE 2   SE 2   SE 5   SE 6   E 7    E 7
20 ft wind gust.10     9      9      10     12     13
Mix hgt (ft)....500    1000   2400   3100   3300   2900
Transport wind..E 9    E 9    SE 7   E 6    E 7    E 7
Dispersion idx..5      12     21     26     29     26
LVORI...........8      5      3      3      3      3

$$
Forecaster...Tollefsen
Requested by...Miranda Cunningham
Type of request...PRESCRIBED
.TAG 2518177.0/MLB
.DELDT 07/18/25
.FormatterVersion 2.0.0
.EMAIL miranda.cunningham@floridadep.gov