668
FNUS72 KMLB 200712
FWSMLB
SPOT FORECAST FOR KPPSP ZONES 18 29...DEPARTMENT OF ENVIRONMENTAL PROTECTION
NATIONAL WEATHER SERVICE MELBOURNE FL
312 AM EDT WED MAY 20 2026
FORECAST IS BASED ON IGNITION TIME OF 0700 EDT ON MAY 20.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
EAST TO SOUTHEAST WINDS INCREASE TO 10 MPH BEHIND THE SEA BREEZE EACH
AFTERNOON, WITH GUSTS NEAR 20 MPH. ISOLATED TO SCATTERED SHOWERS AND
STORMS ARE FORECAST ALONG THE SEA BREEZE, MAINLY AFTER 2 PM, BEFORE
ACTIVITY MOVES INTO THE WESTERN HALF OF THE PENINSULA BY THE EVENING
HOURS. A FEW STORMS COULD PRODUCE GUSTY WINDS 40-50 MPH AND SMALL HAIL.
NO MIN RH CONCERNS, WITH GOOD SMOKE DISPERSION IN THE AFTERNOONS.
TODAY
SKY/WEATHER.........SUNNY (20-30 PERCENT). CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
CHANCE OF PCPN......40 PERCENT.
MAX TEMPERATURE.....AROUND 90.
MIN HUMIDITY........54 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING EAST 5 TO 10 MPH IN THE
LATE MORNING AND AFTERNOON. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS.
MIXING HEIGHT.......2300 FT AGL INCREASING TO 5500 FT AGL IN THE
AFTERNOON.
TRANSPORT WINDS.....EAST 7 TO 12 MPH.
DISPERSION INDEX....5 INCREASING TO 56.
LVORI...............9 DECREASING TO 1.
TIME (EDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........32 17 12 17 18 20 20 34 34 32 35
WEATHER COV..... CHC CHC CHC CHC
WEATHER TYPE.... RW RW RW RW
TSTM COV........ CHC CHC CHC CHC
CHC OF PCPN (%).0 10 10 10 0 0 10 30 40 40 40
TEMP............69 72 77 83 85 87 88 88 88 89 87
RH..............100 100 85 70 65 59 57 55 55 54 56
20 FT WIND DIR..E E E E E E E E E E E
20 FT WIND SPD..3 3 5 6 7 7 8 8 9 10 10
20 FT WIND GUST.7 7 8 10 12 13 14 15 16 16 17
MIX HGT (KFT)...0.4 0.7 2.3 3.1 3.9 4.5 5.4 5.5 4.8 4.1 3.3
TRANSP WIND DIR.E E E E E E E E E E E
TRANSP WIND SPD.7 7 9 8 9 8 8 8 9 10 12
DISPERSION IDX..3 6 27 36 43 43 50 51 52 56 49
LVORI...........9 8 4 3 1 1 1 1 1 1 1
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT). CHANCE OF
SHOWERS AND THUNDERSTORMS EARLY IN THE EVENING.
CHANCE OF PCPN......30 PERCENT.
MIN TEMPERATURE.....AROUND 68.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 10 MPH IN THE EVENING
BECOMING LIGHT.
MIXING HEIGHT.......2600 FT AGL DECREASING TO 400 FT AGL EARLY IN
THE EVENING.
TRANSPORT WINDS.....EAST 6 TO 14 MPH.
DISPERSION INDEX....51 DECREASING TO 7 EARLY IN THE EVENING.
LVORI...............1 INCREASING TO 9.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........31 27 35 47 42 34 32 25 21 18 23 19
WEATHER COV.....CHC SCH
WEATHER TYPE....RW RW
TSTM COV........CHC SCH
CHC OF PCPN (%).30 20 10 0 0 0 0 0 0 0 0 0
TEMP............85 84 78 76 74 73 72 71 71 70 70 69
RH..............62 64 79 86 90 93 97 99 98 100 98 100
20 FT WIND DIR..E E E SE SE SE SE SE E E E E
20 FT WIND SPD..10 10 9 8 7 5 3 2 2 2 2 2
20 FT WIND GUST.17 17 15 14 12 9 8 6 6 5 5 6
MIX HGT (KFT)...3.1 2.6 1.0 0.7 0.7 0.6 0.5 0.5 0.5 0.4 0.4 0.4
TRANSP WIND DIR.E E E E E E SE SE SE SE E SE
TRANSP WIND SPD.14 14 13 12 10 9 8 7 7 6 7 7
DISPERSION IDX..53 49 8 10 7 4 4 3 3 3 3 3
LVORI...........1 1 4 4 5 6 8 9 9 9 9 9
THURSDAY
SKY/WEATHER.........SUNNY (20-30 PERCENT). CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
CHANCE OF PCPN......40 PERCENT.
MAX TEMPERATURE.....AROUND 91.
MIN HUMIDITY........52 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING EAST 5 TO 10 MPH LATE IN
THE MORNING. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS.
MIXING HEIGHT.......2100 FT AGL INCREASING TO 7000 FT AGL IN THE
AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST 7 TO 12 MPH.
DISPERSION INDEX....4 INCREASING TO 60 IN THE AFTERNOON.
LVORI...............9 DECREASING TO 1.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........20 24 13 16 19 23 24 30 32 31 32 30
WEATHER COV..... SCH CHC CHC CHC
WEATHER TYPE.... RW RW RW RW
TSTM COV........ SCH CHC CHC CHC
CHC OF PCPN (%).0 0 0 0 0 0 10 10 20 30 40 40
TEMP............68 69 72 77 84 86 88 89 89 90 90 88
RH..............100 100 100 85 67 63 57 55 53 52 52 55
20 FT WIND DIR..E E E E SE SE SE E E E E E
20 FT WIND SPD..2 2 3 3 3 5 6 6 7 8 9 10
20 FT WIND GUST.5 6 6 7 8 10 12 13 14 15 16 17
MIX HGT (KFT)...0.4 0.4 0.6 2.1 3.1 4.1 4.9 5.5 5.9 7.0 5.1 3.2
TRANSP WIND DIR.E E E E SE SE SE SE E E SE E
TRANSP WIND SPD.7 7 7 8 8 8 8 7 7 8 10 12
DISPERSION IDX..3 3 5 22 33 42 50 50 51 60 58 46
LVORI...........9 9 9 4 3 1 1 1 1 1 1 1
FORECASTER...WISHARD
REQUESTED BY...CHRISTIN PETERSON
TYPE OF REQUEST...PRESCRIBED
.TAG 2614082.0/MLB
.DELDT 05/20/26
.FORMATTERVERSION 2.0.0
.EMAIL CHRISTIN.A.PETERSON@FLORIDADEP.GOV
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