151
FNUS72 KMLB 040817
FWSMLB

Spot Forecast for SJRWMD Rx 45115...St. Johns River Water Managment District
National Weather Service Melbourne FL
417 AM EDT Fri Apr 4 2025

Forecast is based on ignition time of 0800 EDT on April 04.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...
High pressure east of Florida will maintain winds out of the
southeast today, with winds speeds becoming breezy up to 15-17 mph
and gusts to 25-30 mph this afternoon. This breezy onshore flow
will keep min RH values above critical values and also lead to
Very Good dispersion values today. It will remain dry today with
highs warmer than normal, in the mid 80s.

.REST OF TODAY...

Sky/weather.........Mostly sunny (30-40 percent).
Chance of pcpn......0 percent.
Max temperature.....Around 86.
Min humidity........51 percent.
Wind (20 ft)........Southeast winds 5 to 10 mph early this
                    morning, increasing to 14 to 17 mph in the
                    late morning and afternoon. Gusts up to 25 to
                    30 mph.
Mixing height.......1600 ft AGL increasing to 4600 ft AGL in the
                    late morning and afternoon.
Transport winds.....Southeast 12 to 17 mph.
Dispersion index....6 increasing to 62.
LVORI...............4 decreasing to 1 in the late morning and
                    afternoon.

TIME (EDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........31  33  36  38  37  36  36  34  33  32
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0
Temp............73  76  80  84  85  86  86  86  86  85
RH..............81  74  65  57  55  53  51  51  51  53
20 FT wind dir..SE  SE  SE  SE  SE  SE  SE  SE  SE  SE
20 FT wind spd..7   9   12  14  15  16  17  17  16  15
20 FT wind gust.13  14  15  21  22  22  25  25  23  23
Mix hgt (kft)...0.4 1.6 3.5 4.0 4.4 4.6 4.5 4.5 4.3 3.8
Transp wind dir.SE  SE  SE  SE  SE  SE  SE  SE  SE  SE
Transp wind spd.12  15  17  16  16  15  15  15  15  15
Dispersion idx..6   33  60  61  62  61  60  59  57  55
LVORI...........4   3   1   1   1   1   1   1   1   1

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent).
Chance of pcpn......0 percent.
Min temperature.....Around 68.
Max humidity........93 percent.
Wind (20 ft)........Southeast winds 6 to 14 mph.
Mixing height.......2800 ft AGL decreasing to 400 ft AGL early in
                    the evening.
Transport winds.....Southeast 9 to 16 mph.
Dispersion index....51 decreasing to 7 early in the evening.
LVORI...............1 increasing to 6.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........29     25     27     29     28     33
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Chc of pcpn (%).0      0      0      0      0      0
Temp............83     76     73     72     71     69
RH..............57     71     81     84     84     90
20 ft wind......SE 14  SE 12  SE 9   SE 7   SE 6   SE 6
20 ft wind gust.22     16     13     12     10     10
Mix hgt (ft)....3400   600    500    400    500    400
Transport wind..SE 15  SE 14  SE 13  SE 10  SE 10  SE 10
Dispersion idx..53     9      8      6      5      5
LVORI...........1      3      4      5      5      6

.SATURDAY...

Sky/weather.........Sunny (20-30 percent).
Chance of pcpn......0 percent.
Max temperature.....Around 87.
Min humidity........53 percent.
Wind (20 ft)........Southeast winds 6 to 14 mph.
Mixing height.......1700 ft AGL increasing to 4800 ft AGL in the
                    late morning and afternoon.
Transport winds.....Southeast 8 to 16 mph.
Dispersion index....5 increasing to 62.
LVORI...............6 decreasing to 1.

TIME (EDT)      6 AM         10 AM        2 PM
Sky (%).........36           30           18
Weather cov.....
Weather type....NONE         NONE         NONE
Tstm cov........
Chc of pcpn (%).0            0            0
Temp............68           79           86
RH..............93           70           53
20 FT wind......SE 6G12      SE 10G16     SE 14G21
Mix hgt (ft)....400          3000         4800
Transport wind..SE 9         S 15         SE 15
Dispersion idx..4            51           62
LVORI...........6            3            1

$$
Forecaster...Weitlich
Requested by...Jonny Baker
Type of request...PRESCRIBED
.TAG 2508788.0/MLB
.DELDT 04/04/25
.FormatterVersion 2.0.0
.EMAIL jabaker@sjrwmd.com