503  
FNUS72 KMFL 231719  
FWSMFL  
 
SPOT FORECAST FOR I 75 SOUTH RX...FLORIDA FOREST SERVICE  
NATIONAL WEATHER SERVICE MIAMI FL  
119 PM EDT MON OCT 23 2017  
 
FORECAST IS BASED ON IGNITION TIME OF 1300 EDT ON OCTOBER 24.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE AT (305) 229-4522, IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
 
A SLOW-MOVING COLD FRONT WILL BEGIN TO APPROACH SOUTH FLORIDA  
TUESDAY, WITH DEEP MOISTURE IN ADVANCE OF IT LEADING TO NUMEROUS  
SHOWERS AND PERHAPS A THUNDERSTORM OR TWO STARTING IN THE MORNING.  
WINDS WILL GRADUALLY TRANSITION TO THE WEST DURING THE MORNING.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SHOWERS LIKELY  
AND A CHANCE OF THUNDERSTORMS.  
MAX TEMPERATURE.....AROUND 84.  
MIN HUMIDITY........71 PERCENT.  
WIND (20 FT)........WEST WINDS 7 TO 8 MPH. GUSTY AND ERRATIC WINDS  
EXPECTED NEAR THUNDERSTORMS.  
CHANCE OF PCPN......70 PERCENT.  
LAL.................9-15 STRIKES.  
MIXING HEIGHT.......2300-3400 FT AGL.  
TRANSPORT WINDS.....SOUTH 9 TO 10 MPH.  
DISPERSION INDEX....22.  
LVORI...............3.  
 
TIME (EDT) 1PM 2PM 3PM 4PM 5PM  
SKY (%).........76 80 80 80 74  
WEATHER COV.....LKY LKY LKY LKY LKY  
WEATHER TYPE....RW RW RW RW RW  
TSTM COV........CHC CHC CHC CHC CHC  
TEMP............84 84 84 83 83  
RH..............71 71 71 72 72  
20 FT WIND DIR..SW SW W W W  
20 FT WIND DIR..230 240 250 260 260  
20 FT WIND SPD..7 7 8 8 8  
20 FT WIND GUST.8 8 10 10 10  
MIX HGT (KFT)...3.0 3.4 3.1 2.7 2.3  
TRANSP WIND DIR.S S S S S  
TRANSP WIND SPD.10 10 10 10 9  
DISPERSION IDX..25 26 24 22 18  
LVORI...........3 3 3 3 3  
CHC OF PCPN (%).70 70 70 70 60  
LAL.............3 3 3 3 3  
   
TUESDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SHOWERS LIKELY  
AND A CHANCE OF THUNDERSTORMS.  
MIN TEMPERATURE.....AROUND 66.  
MAX HUMIDITY........100 PERCENT.  
WIND (20 FT)........WEST WINDS AROUND 6 MPH EARLY IN THE  
EVENING...BECOMING LIGHT,...THEN BECOMING NORTH  
5 TO 6 MPH AFTER MIDNIGHT. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS.  
CHANCE OF PCPN......60 PERCENT.  
LAL.................9-15 STRIKES.  
MIXING HEIGHT.......300-1700 FT AGL.  
TRANSPORT WINDS.....NORTH 1 TO 7 MPH.  
DISPERSION INDEX....8...DECREASING TO 4 UNTIL JUST AFTER MIDNIGHT.  
LVORI...............7.  
 
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........74 74 83 83 83 67 67 67 77 77 77 68  
WEATHER COV.....LKY LKY LKY LKY LKY LKY LKY LKY LKY LKY LKY LKY  
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW  
TSTM COV........CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC  
TEMP............80 76 73 72 71 71 70 69 68 68 67 67  
RH..............79 87 97 100 100 100 99 97 95 90 89 84  
20 FT WIND DIR..W NW NW NW N N N N N N N N  
20 FT WIND DIR..270 300 310 320 350 000 000 000 000 000 350 350  
20 FT WIND SPD..6 3 1 1 3 3 3 5 5 5 6 6  
20 FT WIND GUST.7 4 4 5 5 6 6 6 7 7  
MIX HGT (KFT)...1.7 1.0 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3  
TRANSP WIND DIR.SW W NW NW N N N N N N N N  
TRANSP WIND SPD.7 3 1 2 3 5 6 6 6 6 7 7  
DISPERSION IDX..11 4 1 1 2 3 4 4 5 5 5 6  
LVORI...........4 5 8 9 9 9 8 7 6 6 5 5  
CHC OF PCPN (%).60 60 60 60 60 60 60 60 60 60 60 60  
LAL.............3 3 3 3 3 3 3 3 3 3 3 3  
   
WEDNESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT). SHOWERS LIKELY  
AND A CHANCE OF THUNDERSTORMS EARLY IN THE  
MORNING,...THEN A SLIGHT CHANCE OF SHOWERS  
THROUGH EARLY AFTERNOON.  
MAX TEMPERATURE.....AROUND 75.  
MIN HUMIDITY........52 PERCENT.  
WIND (20 FT)........NORTH WINDS 7 TO 8 MPH. GUSTY AND ERRATIC WINDS  
EXPECTED NEAR THUNDERSTORMS EARLY IN THE  
MORNING.  
CHANCE OF PCPN......60 PERCENT.  
LAL.................9-15 STRIKES UNTIL 0800,...THEN NO TSTMS.  
MIXING HEIGHT.......300-2100 FT AGL...INCREASING TO 2100-2400 FT  
AGL LATE IN THE AFTERNOON.  
TRANSPORT WINDS.....NORTH 8 TO 17 MPH.  
DISPERSION INDEX....9...INCREASING TO 42.  
LVORI...............3.  
 
TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY (%).........68 64 64 51 36 36  
WEATHER COV.....LIKELY S CHC S CHC S CHC  
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR NONE NONE  
TSTM COV........CHANCE  
TEMP............66 66 71 74 75 74  
RH..............84 75 61 55 54 53  
20 FT WIND DIR..N N N N N N  
20 FT WIND DIR..350 350 000 000 000 350  
20 FT WIND SPD..7 8 8 8 8 8  
20 FT WIND GUST.8 10 11 11 11 11  
MIX HGT (FT)....300 300 1000 1700 2400 2200  
TRANSPORT WIND..N 8 N 9 N 15 N 17 N 16 N 17  
DISPERSION IDX..7 9 19 38 45 43  
LVORI...........4 4 2 1 1 1  
CHC OF PCPN (%).60 20 20 20 10 10  
LAL.............3 1 1 1 1 1  
 

 
FORECASTER...KONARIK  
REQUESTED BY...ANTHONY CURELLA  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1717731.0/MFL  
 
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