FNUS72 KMFL 201820 FWSMFL SPOT FORECAST FOR FISHEATING...FLORIDA FISH AND WILDLIFE NATIONAL WEATHER SERVICE MIAMI FL 120 PM EST TUE JAN 20 2009 FORECAST IS BASED ON IGNITION TIME OF 1100 EST ON JANUARY 21. IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE. ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM EST WEDNESDAY... ...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY AFTERNOON... .DISCUSSION...A STRONG COLD FRONT WILL MOVE ACROSS SOUTH FLORIDA TODAY WITH WINDS SHIFTING TO THE WEST NORTHWEST BEHIND IT. SPEEDS OF 15 TO 20 MPH WITH GUSTS OF 25 TO 30 MPH CAN BE EXPECTED AT THE SURFACE... WITH EVEN STRONGER TRANSPORT WINDS. THIS WILL RESULT IN GENERALLY GOOD TO GOOD DISPERSION INDICES ACROSS MUCH OF THE REGION. A VERY DRY AIRMASS WILL OVERSPREAD SOUTH OVER THE REGION BEHIND THE FRONT WITH RH'S BELOW 35 PERCENT FOR MORE THAN FOUR CONSECUTIVE HOURS POSSIBLE OVER ALL OF SOUTH FLORIDA WEDNESDAY. THEREFORE...A FIRE WEATHER WATCH HAS BEEN ISSUED FOR ALL OF THE AREA FOR WEDNESDAY AFTERNOON. SIMILAR CONDITIONS COULD BE EXPECTED THURSDAY, THEREFORE A WATCH HAS BEEN ISSUED. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT). MIN TEMPERATURE.....AROUND 31. MAX HUMIDITY........92 PERCENT. DEWPOINT............35. WIND (20 FT)........NORTH WINDS 6 TO 13 MPH. EYE LEVEL WINDS.....NORTH WINDS 6 TO 13 MPH. CHANCE OF PCPN......10 PERCENT. LAL.................1. MIXING HEIGHT.......500-1600 FT AGL. MIXING WINDS........NORTH 7 TO 10 MPH. DISPERSION INDEX....5. LVORI...............5. TIME (EST) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........35 35 35 20 20 20 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE CHC OF PCPN (%).10 10 10 10 10 10 TEMP............47 40 36 35 34 32 RH..............63 79 89 89 89 92 20 FT WIND......NW 10 NW 10 NW 7 N 5 N 5 N 5 20 FT WIND GUST.20 20 15 10 10 10 EYE LEVEL WIND..NW 10 NW 10 NW 7 N 5 N 5 N 5 EYE LVL WIND G..20 20 15 10 10 10 MIX HGT (FT)....1600 1600 1100 700 700 500 MIXNG WIND......NW 10 NW 10 N 8 N 8 N 8 N 7 DISP IDX (LDSI).7 7 4 3 3 3 LVORI...........3 3 5 5 5 6 CHC OF PCPN (%).10 10 10 10 10 10 LAL.............1 1 1 1 1 1 .WEDNESDAY... SKY/WEATHER.........SUNNY (5-15 PERCENT). MAX TEMPERATURE.....AROUND 57. MIN HUMIDITY........27 PERCENT. DEWPOINT............29. WIND (20 FT)........NORTH WINDS 6 TO 8 MPH. EYE LEVEL WINDS.....NORTH WINDS 6 TO 8 MPH. CHANCE OF PCPN......0 PERCENT. LAL.................1. MIXING HEIGHT.......1200-2200 FT AGL. MIXING WINDS........NORTH 8 TO 13 MPH. DISPERSION INDEX....11 INCREASING TO 25 LATE IN THE MORNING...THEN INCREASING TO 36 EARLY IN THE AFTERNOON DECREASING TO 21 LATE IN THE AFTERNOON. LVORI...............3. $$ FORECASTER...RADER REQUESTED BY...GRANT STEELMAN TYPE OF REQUEST...PRESCRIBED