FNUS72 KMFL 252052 FWSMFL SPOT FORECAST FOR HULL BURN...JIM HULL NATIONAL WEATHER SERVICE MIAMI FL 352 PM EST MON JAN 25 2010 FORECAST IS BASED ON IGNITION TIME OF 0900 EST ON JANUARY 26. IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE. ...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY AFTERNOON... .DISCUSSION...A BROAD REGION OF HIGH PRESSURE WILL GRADUALLY BUILD ACROSS SOUTH FLORIDA FROM TONIGHT THROUGH TUESDAY...WITH WINDS EXPECTED TO REMAIN FROM THE NORTH-NORTHWEST IN THE VICINITY OF THE PRESCRIBED BURN SITE. A DRY AIR MASS COUPLED WITH WARM AFTERNOON TEMPERATURES MAY LEAD TO CRITICAL LEVELS OF RELATIVE HUMIDITY BEING ACHIEVED FOR 4 OR MORE HOURS ON TUESDAY...AND A FIRE WEATHER WATCH IS IN EFFECT FOR THE AREA. ALTHOUGH SIMILAR CONDITIONS MAY ALSO OCCUR ON WEDNESDAY...INCREASING NORTHEAST WINDS WILL ALLOW MOISTURE TO RETURN TO THE AREA...WITH NO FIRE WEATHER CONCERNS BY THE END OF THE WEEK. EXPECT MIXING HEIGHTS TO RISE TO NEARLY 3000 FEET TOMORROW AFTERNOON NEAR THE BURN SITE...WITH SMOKE DISPERSION INDICES IN THE GENERALLY GOOD RANGE. .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (45-55 PERCENT) THEN BECOMING PARTLY CLOUDY (25-35 PERCENT). MIN TEMPERATURE.....41. MAX HUMIDITY........100 PERCENT. DEWPOINT............54. WIND (20 FT)........NORTHWEST WINDS AROUND 5 MPH IN THE EVENING BECOMING LIGHT. WIND (EYE LEVEL)....NORTHWEST WINDS AROUND 5 MPH IN THE EVENING BECOMING LIGHT. POP (12 HR).................10 PERCENT. POP (12 HR).................10 PERCENT. LAL.................1. MIXING HEIGHT.......300-1200 FT AGL. MIXING WINDS........NORTH 5 TO 8 MPH. DISPERSION INDEX....4. LVORI...............9. TIME (EST) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........52 34 20 20 20 20 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............56 50 46 44 43 41 RH..............93 100 100 100 100 100 20 FT WIND......NW 4 NW 4 NW 3 N 3 N 3 N 2 20 FT WIND GUST.10 10 5 5 5 5 EYE LEVEL WIND..NW 4 NW 4 NW 3 N 3 N 3 N 2 EYE LVL WIND G..10 10 5 5 5 5 MIX HGT (FT)....1200 1200 500 500 500 300 MIXNG WIND......NW 8 NW 8 NW 7 N 6 N 6 N 5 DISP IDX (LDSI).5 5 3 3 3 2 LVORI...........8 8 9 9 9 9 LAL.............1 1 1 1 1 1 .TUESDAY... SKY/WEATHER.........SUNNY (5-15 PERCENT). TEMPERATURE.........47 AT IGNITION...MAX 70. MIN HUMIDITY........74 PERCENT AT IGNITION...MIN 32 PERCENT. DEWPOINT............41. WIND (20 FT)........WINDS NORTH AT 3 MPH AT IGNITION...OTHERWISE LIGHT WINDS BECOMING NORTH AROUND 5 MPH IN THE AFTERNOON. WIND (EYE LEVEL)....LIGHT WINDS BECOMING NORTH AROUND 5 MPH IN THE AFTERNOON. POP (12 HR).................10 PERCENT. POP (12 HR).................10 PERCENT. LAL.................1. MIXING HEIGHT.......1200 FT AGL AT IGNITION...OTHERWISE 1200-2900 FT AGL. MIXING WINDS........NORTH 7 TO 13 MPH. DISPERSION INDEX....11 INCREASING TO 28 LATE IN THE MORNING...THEN INCREASING TO 46 EARLY IN THE AFTERNOON DECREASING TO 22 LATE IN THE AFTERNOON. LVORI...............3. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY... MOSTLY CLEAR. PATCHY FROST AFTER MIDNIGHT. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 70S. LIGHT WINDS. .THURSDAY... PARTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 70S. LIGHT WINDS. .FRIDAY... PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S. LIGHT WINDS. .SATURDAY... MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 70S. SOUTH WINDS AROUND 5 MPH. $$ FORECASTER...DIXON REQUESTED BY...JIM HULL TYPE OF REQUEST...PRESCRIBED