FNUS72 KMFL 081425 FWSMFL SPOT FORECAST FOR HECK HOUSE RX...DOI / NPS EVERGLADES NATIONAL WEATHER SERVICE MIAMI FL 925 AM EST MON FEB 8 2010 FORECAST IS BASED ON IGNITION TIME OF 1000 EST ON FEBRUARY 08. IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A BROAD RIDGE OF HIGH PRESSURE AT THE SURFACE WILL BE THE DOMINANT WEATHER FEATURE ACROSS SOUTH FLORIDA TODAY AND TONIGHT...PROVIDING DRY WEATHER AND MOSTLY SUNNY SKIES IN THE VICINITY OF THE PRESCRIBED BURN SITE THIS AFTERNOON. BOTH TRANSPORT LAYER AND 20 FOOT WINDS WILL INITIALLY BE EASTERLY AROUND 5 MPH...WITH WINDS SLOWLY SHIFTING TO THE SOUTHEAST BY TONIGHT. DUE TO THE LIGHT NATURE OF THE WIND...SMOKE DISPERSION IS EXPECTED TO BE POOR THIS AFTERNOON. LIGHT WINDS AND MOSTLY CLEAR SKIES WILL PROMOTE THE DEVELOPMENT OF AT LEAST PATCHY FOG NEAR THE BURN SITE LATE TONIGHT. .TODAY... SKY/WEATHER.........SUNNY (10-20 PERCENT). TEMPERATURE.........60 AT IGNITION...MAX 72. MIN HUMIDITY........61 PERCENT AT IGNITION...MIN 46 PERCENT. DEWPOINT............50. WIND (20 FT)........WINDS NORTHEAST AT 5 MPH AT IGNITION...OTHERWISE NORTHEAST WINDS 5 TO 7 MPH IN THE MORNING BECOMING LIGHT. WIND (EYE LEVEL)....NORTHEAST WINDS 5 TO 7 MPH IN THE MORNING BECOMING LIGHT. POP (12 HR).................10 PERCENT. POP (12 HR).................10 PERCENT. LAL.................1. MIXING HEIGHT.......2200 FT AGL AT IGNITION...OTHERWISE 1500-3000 FT AGL. MIXING WINDS........EAST 5 TO 6 MPH. DISPERSION INDEX....14. LVORI...............4. TIME (EST) 10 AM NOON 2 PM 4 PM 6 PM 8 PM SKY (%).........15 15 15 15 15 25 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE 12 HR CHC PCPN. 10 10 10 10 10 10 6 HR CHC PCPN. 10 10 10 10 10 10 TEMP............60 66 71 70 65 62 RH..............61 53 47 48 57 64 20 FT WIND......NE 4 NE 4 E 2 E 2 E 2 E 3 20 FT WIND GUST.5 5 5 5 5 5 EYE LEVEL WIND..NE 4 NE 4 E 2 E 2 E 2 E 3 EYE LVL WIND G..5 5 5 5 5 5 MIX HGT (FT)....2200 2200 3000 2700 2700 1600 MIXNG WIND......NE 5 NE 5 E 5 E 5 E 5 E 6 DISP IDX (LDSI).13 13 17 16 16 3 LVORI...........3 3 2 2 2 4 LAL.............1 1 1 1 1 1 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT). MIN TEMPERATURE.....49. MAX HUMIDITY........100 PERCENT. DEWPOINT............52. WIND (20 FT)........LIGHT WINDS BECOMING EAST 5 TO 6 MPH IN THE LATE EVENING AND OVERNIGHT. WIND (EYE LEVEL)....LIGHT WINDS BECOMING EAST 5 TO 6 MPH IN THE LATE EVENING AND OVERNIGHT. POP (12 HR).................10 PERCENT. POP (12 HR).................10 PERCENT. LAL.................1. MIXING HEIGHT.......500-1600 FT AGL. MIXING WINDS........EAST 6 TO 8 MPH. DISPERSION INDEX....4. LVORI...............6. .TUESDAY... SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). MAX TEMPERATURE.....80. MIN HUMIDITY........60 PERCENT. DEWPOINT............65. WIND (20 FT)........SOUTH WINDS 8 TO 15 MPH. WIND (EYE LEVEL)....SOUTH WINDS 8 TO 15 MPH. POP (12 HR).................10 PERCENT. POP (12 HR).................10 PERCENT. LAL.................1. MIXING HEIGHT.......1600-3500 FT AGL. MIXING WINDS........SOUTHEAST 12 TO 21 MPH SHIFTING TO THE SOUTH 20 TO 25 MPH IN THE AFTERNOON. DISPERSION INDEX....24 INCREASING TO 46 LATE IN THE MORNING...THEN INCREASING TO 66 EARLY IN THE AFTERNOON DECREASING TO 47 LATE IN THE AFTERNOON. LVORI...............3. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY... MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS IN THE UPPER 50S. HIGHS IN THE LOWER 70S. NORTHWEST WINDS AROUND 10 MPH. .THURSDAY... MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S. NORTH WINDS AROUND 9 MPH. .FRIDAY... PARTLY CLOUDY. CHANCE OF SHOWERS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 70S. NORTHEAST WINDS AROUND 6 MPH. $$ FORECASTER...DIXON REQUESTED BY...TIM WOODY TYPE OF REQUEST...PRESCRIBED