227  
FNUS72 KMLB 210959  
FWSMLB  
 
SPOT FORECAST FOR SEMINOLE STATE FOREST EAST SIDE...FFS  
NATIONAL WEATHER SERVICE MELBOURNE FL  
459 AM EST FRI NOV 21 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 1000 EST ON NOVEMBER 21.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
HIGH PRESSURE CENTERED OVER CENTRAL FLORIDA WILL KEEP CONDITIONS  
DRY AND WINDS GENERALLY LIGHT. PATCHY EARLY MORNING FOG, IF ANY,  
IS EXPECTED TO DISSIPATE BY 10 AM AT THE LATEST, AND LIKELY  
SOONER. WINDS LESS THAN 5 MPH WILL BE LARGELY VARIABLE THROUGH THE  
DAY, BECOMING BRIEFLY EASTERLY AT AROUND 5 MPH AFTER 6 PM AS A  
WEAK EAST COAST SEA BREEZE PUSHES THROUGH, THEN DIMINISHING TO  
LESS THAN 5 MPH WHILE VEERING TO SOUTHWESTERLY OVERNIGHT. THERE IS  
POTENTIAL FOR FOG AGAIN TONIGHT INTO SATURDAY MORNING, BUT  
CONFIDENCE HOW WIDESPREAD AND DENSE IT WILL BECOME IS LOW AT THIS  
TIME. WINDS SATURDAY SOUTHWESTERLY TO WESTERLY AROUND 5 MPH. RAIN  
IS NOT FORECAST.  
 
TODAY'S MIN RH 45-50% AND SATURDAY'S AROUND 50%. SMOKE STAGNATION  
WILL BE POSSIBLE IN THE MORNING DUE TO LOW MIXING HEIGHTS FROM A  
SURFACE INVERSION. THE INVERSION SHOULD MIX OUT BY 11 AM, BUT THIS  
AFTERNOON'S SMOKE DISPERSION VALUES REMAIN POOR DUE TO WEAK  
TRANSPORT WINDS. SATURDAY AFTERNOON'S SMOKE DISPERSION WILL BE  
FAIR TO GENERALLY GOOD AS TRANSPORT WINDS INCREASE A BIT.  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). PATCHY FOG EARLY  
IN THE MORNING.  
CHANCE OF PCPN......0 PERCENT.  
MAX TEMPERATURE.....AROUND 83.  
MIN HUMIDITY........48 PERCENT.  
WIND (20 FT)........LIGHT AND VARIABLE WINDS BECOMING EAST AROUND  
5 MPH LATE IN THE EVENING.  
MIXING HEIGHT.......1100-2200 FT AGL INCREASING TO 3600-4100 FT AGL  
IN THE AFTERNOON.  
TRANSPORT WINDS.....LIGHT AND VARIABLE.  
DISPERSION INDEX....INCREASING TO 8 LATE IN THE AFTERNOON.  
LVORI...............9 DECREASING TO 3.  
 
TIME (EST) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........37 38 37 30 25 26 24 20  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 0  
TEMP............73 77 80 82 82 83 81 79  
RH..............72 62 53 49 49 48 51 54  
20 FT WIND DIR..SW SW SE SE E E E E  
20 FT WIND SPD..3 3 3 3 3 3 3 5  
20 FT WIND GUST.5  
MIX HGT (KFT)...1.1 2.2 3.4 4.1 3.9 3.9 3.6 1.1  
TRANSP WIND DIR.SW SW SW N NE E E SE  
TRANSP WIND SPD.3 3 2 2 2 2 2 2  
DISPERSION IDX..5 10 10 8 11 11 9 4  
LVORI...........3 3 2 2 2 2 2 2  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT). PATCHY FOG  
OVERNIGHT.  
CHANCE OF PCPN......0 PERCENT.  
MIN TEMPERATURE.....AROUND 59.  
MAX HUMIDITY........100 PERCENT.  
WIND (20 FT)........LIGHT WINDS.  
MIXING HEIGHT.......400 FT AGL.  
TRANSPORT WINDS.....EAST AROUND 5 MPH SHIFTING TO THE SOUTHWEST AND  
BECOMING LIGHT OVERNIGHT.  
DISPERSION INDEX....3.  
LVORI...............INCREASING TO 9.  
 
TIME (EST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY (%).........21 21 21 20 26 30  
WEATHER COV..... PATCHY PATCHY  
WEATHER TYPE....NONE NONE NONE NONE FOG FOG  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0  
TEMP............76 69 65 63 61 60  
RH..............62 78 90 97 100 100  
20 FT WIND......E 3 SE 3 S 3 S 2 SW 2 SW 2  
20 FT WIND GUST.6 6 6 3  
MIX HGT (FT)....500 400 400 400 400 400  
TRANSPORT WIND..E 3 SE 7 SE 6 S 7 S 6 SW 6  
DISPERSION IDX..3 3 3 3 3 3  
LVORI...........3 4 6 7 9 9  
   
SATURDAY
 
 
SKY/WEATHER.........SUNNY (10-20 PERCENT). PATCHY FOG EARLY IN THE  
MORNING.  
CHANCE OF PCPN......0 PERCENT.  
MAX TEMPERATURE.....AROUND 83.  
MIN HUMIDITY........49 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING WEST AROUND MPH IN THE  
LATE MORNING AND AFTERNOON.  
MIXING HEIGHT.......400-900 FT AGL INCREASING TO 2900-3900 FT AGL IN  
THE AFTERNOON.  
TRANSPORT WINDS.....WEST 5 TO 10 MPH.  
DISPERSION INDEX....INCREASING TO 42 LATE IN THE AFTERNOON.  
LVORI...............9 DECREASING TO 2.  
 
TIME (EST) 6 AM 9 AM NOON 3 PM  
SKY (%).........30 24 13 5  
WEATHER COV.....PATCHY  
WEATHER TYPE....FOG NONE NONE NONE  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0  
TEMP............59 68 79 82  
RH..............100 84 60 49  
20 FT WIND......SW 2 SW 3G5 W 6G7 W 7G8  
MIX HGT (FT)....400 900 2900 3900  
TRANSPORT WIND..SW 6 SW 7 W 8 W 9  
DISPERSION IDX..3 8 29 43  
LVORI...........9 4 2 1  
 

 
FORECASTER...HALEY  
REQUESTED BY...ROY CRIBB  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2526407.0/MLB  
.DELDT 11/21/25  
.FORMATTERVERSION 2.0.0  
.EMAIL ROY.CRIBBJR@FDACS.GOV  
 
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