FNUS72 KMFL 252112 FWSMFL SPOT FORECAST FOR C-1 AND C-2 RX NATIONAL WEATHER SERVICE MIAMI FL 512 PM EDT THU MAR 25 2010 IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE. SPOT FORECAST FOR C-1 AND C-2 RX...FHP NATIONAL WEATHER SERVICE MIAMI FL 511 PM EDT THU MAR 25 2010 FORECAST IS BASED ON IGNITION TIME OF 1710 EDT ON MARCH 25. IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...PARTLY CLOUDY SKIES THIS AFTERNOON WILL GIVE WAY TO THICKENING LOWER AND MID-LEVEL CLOUDS OVERNIGHT...AS MOISTURE INCREASES AHEAD OF A COLD FRONT APPROACHING THE AREA FROM THE NORTHWEST. THERE IS A SLIGHT CHANCE OF SHOWERS IN THE VICINITY OF THE PRESCRIBED BURN SITE THIS EVENING...WITH RAIN CHANCES EXPECTED TO INCREASE SUBSTANTIALLY BY EARLY FRIDAY MORNING. THE COMBINATION OF CLOUD COVER AND SHOWERS SHOULD LIMIT THE POTENTIAL FOR FOG DEVELOPMENT OVERNIGHT. TRANSPORT WINDS WILL INCREASE FROM THE SOUTHWEST ON FRIDAY MORNING...PRIOR TO FRONTAL PASSAGE...WITH VERY GOOD SMOKE DISPERSION EXPECTED. HOWEVER...THERE WILL BE A SLIGHT CHANCE OF THUNDERSTORMS FOR MUCH OF THE DAY...UNTIL THE TIME OF FRONTAL PASSAGE LATE TOMORROW AFTERNOON. .REST OF TODAY... SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT). TEMPERATURE.........82 AT IGNITION...MAX 83. MIN HUMIDITY........58 PERCENT AT IGNITION...MIN 51 PERCENT. DEWPOINT............67. WIND (20 FT)........WINDS SOUTH AT 7 MPH AT IGNITION...OTHERWISE SOUTH WINDS AROUND 7 MPH. WIND (EYE LEVEL)....SOUTH WINDS AROUND 7 MPH. POP (12 HR).........10 PERCENT. LAL.................1. MIXING HEIGHT.......4000 FT AGL AT IGNITION...OTHERWISE 4000 FT AGL. MIXING WINDS........SOUTH AROUND 16 MPH. DISPERSION INDEX....44. LVORI...............1. TIME (EDT) 5 PM 7 PM 9 PM 11 PM 1 AM 3 AM SKY (%).........60 70 70 70 70 70 WEATHER COV.....S CHC S CHC S CHC S CHC S CHC S CHC WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR 12 HR CHC PCPN. 10 40 40 40 40 40 TEMP............82 79 75 73 71 70 RH..............58 74 83 90 93 94 20 FT WIND......S 6 S 6 S 6 S 5 S 5 S 4 20 FT WIND GUST.10 10 10 10 10 10 EYE LEVEL WIND..S 6 S 6 S 6 S 5 S 5 S 4 EYE LVL WND GST.10 10 10 10 10 10 MIX HGT (FT)....4000 4000 2800 1700 1700 500 MIXNG WIND......S 16 S 16 S 12 S 7 S 7 S 7 DISP IDX (LDSI).44 44 14 6 6 5 LVORI...........1 4 4 5 6 6 LAL.............1 1 1 1 1 1 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). SLIGHT CHANCE OF SHOWERS UNTIL EARLY MORNING...THEN CHANCE OF SHOWERS EARLY IN THE MORNING. MIN TEMPERATURE.....68. MAX HUMIDITY........98 PERCENT. DEWPOINT............69. WIND (20 FT)........SOUTH WINDS 5 TO 8 MPH. WIND (EYE LEVEL)....SOUTH WINDS 5 TO 8 MPH. POP (12 HR).........40 PERCENT. LAL.................1. MIXING HEIGHT.......1700-2800 FT AGL DECREASING TO 500 FT AGL AFTER MIDNIGHT. MIXING WINDS........SOUTHWEST 7 TO 13 MPH. DISPERSION INDEX....10. LVORI...............5. .FRIDAY... SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). CHANCE OF SHOWERS THROUGH THE DAY. MAX TEMPERATURE.....80. MIN HUMIDITY........60 PERCENT. DEWPOINT............69. WIND (20 FT)........WEST WINDS 5 TO 10 MPH. WIND (EYE LEVEL)....WEST WINDS 5 TO 10 MPH. POP (12 HR).........30 PERCENT. LAL.................1 UNTIL 0900...THEN 2. MIXING HEIGHT.......1500-2500 FT AGL INCREASING TO 3000-3500 FT AGL IN THE AFTERNOON. MIXING WINDS........WEST 18 TO 21 MPH. DISPERSION INDEX....32 INCREASING TO 64. LVORI...............3. .FORECAST DAYS 3 THROUGH 5... .SATURDAY... PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 80S. NORTHEAST WINDS AROUND 5 MPH. .SUNDAY... PARTLY CLOUDY. CHANCE OF SHOWERS. LOWS AROUND 60. HIGHS IN THE MID 80S. EAST WINDS AROUND 6 MPH. .MONDAY... MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS IN THE UPPER 60S. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND 5 MPH. $$ FORECASTER...DIXON REQUESTED BY...LT. SAPP TYPE OF REQUEST...PRESCRIBED $$ REQUESTED BY...LT SAPP REASON FOR REQUEST...ESSENTIAL TO PUBLIC SAFETY, E.G. DUE TO THE PROXIMITY OF POPULATION CENTERS OR CRITICAL INFRASTRUCTURE.