493
FNUS72 KMLB 170621
FWSMLB

Spot Forecast for CC-NW-west...SFWMD
National Weather Service Melbourne FL
121 AM EST Mon Nov 17 2025

Forecast is based on ignition time of 0700 EST on November 17.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...
Dry weather continues today, despite a weak front approaching the
area. Light northwesterly winds up to 5-8 mph are expected
through early afternoon before shifting from the north-northeast after
2-3 pm. Peak dispersion values should become good by midday with
RH values only dipping to the 50s (%). Patchy fog is possible late
tonight due to light winds and excellent RH recovery to over 95%.

.REST OF TODAY...

Sky/weather.........Sunny (5-15 percent).
Chance of pcpn......0 percent.
Max temperature.....Around 81.
Min humidity........56 percent.
Wind (20 ft)........Light winds becoming northwest 5 to 6 mph in
                    the late morning and early afternoon, then
                    shifting to the north late in the afternoon.
Mixing height.......2000 ft AGL increasing to 4400 ft AGL late in
                    the morning, then decreasing to 1100 ft AGL
                    late in the afternoon.
Transport winds.....Northwest 6 to 8 mph shifting to the north
                    around 8 mph late in the afternoon.
Dispersion index....6 increasing to 22 late in the morning, then
                    increasing to 37 late in the morning increasing
                    to 38 late in the afternoon decreasing to 12.
LVORI...............6 decreasing to 2.

TIME (EST)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........2   2   2   3   3   3   9   12  15  20  12
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0
Temp............59  62  70  74  77  79  79  79  80  79  77
RH..............93  90  74  68  63  59  57  57  56  60  64
20 FT wind dir..W   NW  NW  NW  NW  NW  N   N   N   NE  NE
20 FT wind spd..2   3   5   6   6   6   6   6   6   6   5
20 FT wind gust.8   8   9   9   9   9   10  10  10  10  10
Mix hgt (kft)...0.4 0.4 0.8 2.0 3.2 4.0 4.4 4.4 4.0 3.3 1.1
Transp wind dir.W   NW  NW  NW  NW  NW  NW  NW  N   N   N
Transp wind spd.7   6   7   8   8   8   8   8   8   8   8
Dispersion idx..4   3   8   22  32  38  41  42  39  33  12
LVORI...........6   6   3   3   1   1   1   1   1   1   2

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent). Patchy fog after
                    3 am.
Chance of pcpn......10 percent.
Min temperature.....Around 62.
Max humidity........97 percent.
Wind (20 ft)........Light winds.
Mixing height.......400 ft AGL.
Transport winds.....North 5 to 8 mph.
Dispersion index....4.
LVORI...............4 increasing to 8.

TIME (EST)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........14     7      24     18     21     16
Weather cov.....                                   PATCHY
Weather type....NONE   NONE   NONE   NONE   NONE   FOG
Tstm cov........
Chc of pcpn (%).0      10     10     10     10     10
Temp............75     70     68     66     65     64
RH..............70     81     87     93     97     97
20 ft wind......NE 2   N 2    NW 1   NW 1   NW 1   NW 1
20 ft wind gust.9      7      5      3      3      5
Mix hgt (ft)....600    400    400    400    400    400
Transport wind..N 8    NE 6   N 5    N 6    N 6    NW 6
Dispersion idx..6      3      2      3      3      3
LVORI...........3      5      6      6      8      8

.TUESDAY...

Sky/weather.........Sunny (20-30 percent). Patchy fog early in the
                    morning. Slight chance of showers in the
                    afternoon.
Chance of pcpn......20 percent.
Max temperature.....Around 82.
Min humidity........60 percent.
Wind (20 ft)........Light winds becoming northeast 5 to 7 mph late
                    in the morning.
Mixing height.......2200 ft AGL increasing to 3800 ft AGL late in
                    the morning.
Transport winds.....North 6 to 7 mph shifting to the northeast 6 to
                    12 mph in the afternoon.
Dispersion index....7 increasing to 37.
LVORI...............9 decreasing to 6 early in the morning, then
                    decreasing to 4 late in the morning decreasing
                    to 2 late in the afternoon increasing to 3.

TIME (EST)      6 AM      9 AM      NOON      3 PM
Sky (%).........19        18        25        28
Weather cov.....PATCHY                        S CHC
Weather type....FOG       NONE      NONE      RNSHWR
Tstm cov........
Chc of pcpn (%).10        10        10        20
Temp............63        72        80        80
RH..............97        81        65        62
20 FT wind......NW 2G6    N 2G6     NE 5G10   E 7G13
Mix hgt (ft)....400       1300      3400      3600
Transport wind..N 7       N 6       NE 6      E 9
Dispersion idx..3         10        26        39
LVORI...........9         4         3         1

$$
Forecaster...Heil
Requested by...James Schuette
Type of request...PRESCRIBED
.TAG 2526051.0/MLB
.DELDT 11/17/25
.FormatterVersion 2.0.0
.EMAIL jschuett@sfwmd.gov