006  
FNUS72 KMFL 181025  
FWSMFL  
 
SPOT FORECAST FOR AT RX...SEMINOLE TRIBE  
NATIONAL WEATHER SERVICE MIAMI FL  
625 AM EDT MON MAR 18 2019  
 
FORECAST IS BASED ON IGNITION TIME OF 1000 EDT ON MARCH 18.  
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 WEAK COLD FRONT TO OUR SOUTH WILL KEEP THE WEATHER UNSETTLED  
THIS WEEK. SOME LIGHT SHOWERS ARE POSSIBLE THIS MORNING, WITH A  
LULL POSSIBLE FROM LATE MORNING INTO EARLY AFTERNOON. THEREAFTER, RAIN  
CHANCES WILL INCREASE FOR TONIGHT INTO TUESDAY. THERE IS A NON-ZERO  
CHANCE FOR A THUNDERSTORM, BUT LIGHTNING IS UNLIKELY. THE 20 FOOT  
WIND SHOULD REMAIN NORTHERLY AT AROUND 10 KT, ALTHOUGH THERE IS A  
CHANCE IT COULD BECOME NORTHEASTERLY THIS AFTERNOON. THE TRANSPORT  
WIND SHOULD GRADUALLY TURN FROM N TO NE THROUGH THE DAY WITH  
INCREASING SPEED TO AROUND 20 KT BY EARLY AFTERNOON. WITH CLOUD  
COVER AND LOW MIXING HEIGHTS THIS MORNING DISPERSION WILL BE POOR,  
GRADUALLY BECOMING FAIR DURING THE AFTERNOON HOURS. WET CONDITIONS  
AND POOR DISPERSIONS ARE EXPECTED FOR TUESDAY.  
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). SLIGHT CHANCE OF  
SHOWERS LATE IN THE MORNING. SCATTERED SHOWERS  
EARLY IN THE AFTERNOON.  
MAX TEMPERATURE.....AROUND 73.  
MIN HUMIDITY........63 PERCENT.  
WIND (20 FT)........NORTH WINDS 7 TO 9 MPH.  
CHANCE OF PCPN......30 PERCENT.  
LAL.................NO TSTMS.  
MIXING HEIGHT.......1100-2900 FT AGL.  
TRANSPORT WINDS.....NORTHEAST 14 TO 21 MPH.  
DISPERSION INDEX....23 INCREASING TO 48.  
LVORI...............2.  
 
TIME (EDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........81 72 72 72 91 91 91 99  
WEATHER COV.....SCH CHC CHC CHC SCT  
WEATHER TYPE....RW RW RW RW RW  
TSTM COV........  
TEMP............67 69 71 71 72 73 73 73  
RH..............78 76 72 70 67 65 63 63  
20 FT WIND DIR..N N N N N N N N  
20 FT WIND DIR..000 010 010 010 010 010 010 010  
20 FT WIND SPD..8 8 8 8 8 8 9 9  
20 FT WIND GUST.10 10 11 10 11 11 12 12  
MIX HGT (KFT)...1.1 1.5 1.8 2.0 2.2 2.5 2.7 2.9  
TRANSP WIND DIR.N N N N N N NE NE  
TRANSP WIND SPD.14 16 18 20 21 21 21 21  
DISPERSION IDX..18 27 33 38 42 45 48 50  
LVORI...........3 3 3 3 1 1 1 1  
CHC OF PCPN (%).20 10 10 10 30 30 30 30  
LAL.............1 1 1 1 1 1 1 1  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY (95-100 PERCENT). SCATTERED RAIN SHOWERS  
UNTIL EARLY MORNING, THEN NUMEROUS RAIN SHOWERS  
AFTER MIDNIGHT.  
MIN TEMPERATURE.....AROUND 57.  
MAX HUMIDITY........90 PERCENT.  
WIND (20 FT)........NORTH WINDS 8 TO 9 MPH.  
CHANCE OF PCPN......70 PERCENT.  
LAL.................NO TSTMS.  
MIXING HEIGHT.......500-2400 FT AGL DECREASING TO 300-400 FT AGL  
AFTER MIDNIGHT.  
TRANSPORT WINDS.....NORTH 18 TO 25 MPH DECREASING TO 10 TO 15 MPH  
LATE IN THE EVENING.  
DISPERSION INDEX....49 DECREASING TO 13.  
LVORI...............3.  
 
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........99 99 100 100 100 100 100 100 99 99 99 99  
WEATHER COV.....SCT SCT SCT SCT SCT SCT SCT SCT NUM NUM NUM NUM  
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW  
TSTM COV........  
TEMP............72 69 66 64 63 62 61 60 59 59 58 57  
RH..............63 68 73 78 78 81 84 84 87 87 86 90  
20 FT WIND DIR..N N N N N N N N N N N N  
20 FT WIND DIR..010 010 010 010 010 010 010 010 010 010 010 010  
20 FT WIND SPD..9 8 8 8 8 8 8 8 8 8 8 8  
20 FT WIND GUST.12 11 11 11 11 11 11 11 11 11 11 11  
MIX HGT (KFT)...2.4 1.9 1.3 1.1 0.8 0.5 0.4 0.4 0.3 0.3 0.3 0.3  
TRANSP WIND DIR.NE N N N N N N N N N N N  
TRANSP WIND SPD.23 25 25 23 18 15 13 12 10 10 10 10  
DISPERSION IDX..50 47 27 22 18 15 13 12 11 11 11 11  
LVORI...........1 1 3 3 3 4 4 4 4 4 5 5  
CHC OF PCPN (%).30 30 50 50 50 50 50 50 70 70 70 70  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
   
TUESDAY
 
 
SKY/WEATHER.........CLOUDY (95-100 PERCENT). NUMEROUS RAIN SHOWERS  
EARLY IN THE MORNING, THEN RAIN SHOWERS EARLY  
IN THE MORNING. NUMEROUS RAIN SHOWERS EARLY IN  
THE AFTERNOON.  
MAX TEMPERATURE.....AROUND 68.  
MIN HUMIDITY........73 PERCENT.  
WIND (20 FT)........NORTHEAST WINDS 8 TO 12 MPH.  
CHANCE OF PCPN......80 PERCENT.  
LAL.................NO TSTMS.  
MIXING HEIGHT.......300-2200 FT AGL INCREASING TO 2300 FT AGL LATE  
IN THE AFTERNOON.  
TRANSPORT WINDS.....NORTH 9 TO 15 MPH INCREASING TO NORTHEAST 29 TO  
32 MPH.  
DISPERSION INDEX....14 INCREASING TO 63.  
LVORI...............4.  
 
TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY (%).........99 100 100 99 100 100  
WEATHER COV.....NUMRUS DEFNTE DEFNTE DEFNTE NUMRUS NUMRUS  
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR  
TSTM COV........  
TEMP............57 57 63 66 67 68  
RH..............90 90 81 78 75 73  
20 FT WIND DIR..N N NE NE NE NE  
20 FT WIND DIR..010 010 030 030 040 040  
20 FT WIND SPD..8 8 10 12 12 12  
20 FT WIND GUST.11 11 13 14 14 14  
MIX HGT (FT)....300 300 1000 1600 2100 2300  
TRANSPORT WIND..N 9 N 10 NE 22 NE 31 NE 32 NE 32  
DISPERSION IDX..10 11 27 49 62 65  
LVORI...........5 5 4 3 3 3  
CHC OF PCPN (%).70 80 80 80 70 70  
LAL.............1 1 1 1 1 1  
 

 
FORECASTER...MILLER  
REQUESTED BY...MIKE LIGHTSEY  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1903479.0/MFL  
 
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