FNUS72 KJAX 281005 FWSJAX SPOT FORECAST FOR KINGS BAY...OSCEOLA NATIONAL FOREST NATIONAL WEATHER SERVICE JACKSONVILLE FL 505 AM EST THU FEB 28 2013 FORECAST IS BASED ON IGNITION TIME OF 1615 EST ON FEBRUARY 28. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... WESTERLY WINDS WILL INCREASE THIS MORNING AS A TROUGH OF LOW PRESSURE MOVES SOUTHEASTWARD THROUGH OUR REGION. SUSTAINED WIND SPEEDS WILL RISE TO THE 15 TO 20 MPH RANGE EARLY THIS AFTERNOON...WITH GUSTS NEAR 30 MPH EXPECTED DURING THE MID- AFTERNOON HOURS. STRONG OFFSHORE WINDS WILL PRECLUDE ANY SEA BREEZE DEVELOPMENT DURING THE NEXT SEVERAL DAYS. A VERY DRY AIR MASS WILL REMAIN IN PLACE...AND RELATIVE HUMIDITY VALUES WILL FALL TO NEAR 25 PERCENT THIS AFTERNOON. DISPERSION VALUES WILL ALSO EXCEED CRITICAL THRESHOLDS THIS AFTERNOON. HUMIDITY VALUES WILL RISE ABOVE 30 PERCENT JUST BEFORE SUNSET. WEST WINDS WILL DECREASE TO THE 10 TO 15 MPH RANGE THIS EVENING...AND WINDS OVERNIGHT WILL BECOME NORTHWESTERLY AND REMAIN NEAR 10 MPH THROUGH THE PREDAWN HOURS. A DRY AIR MASS WILL REMAIN IN PLACE ON FRIDAY...WITH RELATIVE HUMIDITY VALUES FALLING TO NEAR 30 PERCENT DURING THE AFTERNOON HOURS. WEST TO NORTHWEST WINDS OF 10 TO 15 MPH ARE EXPECTED THROUGHOUT THE DAY...WITH GUSTS EXCEEDING 20 MPH EXPECTED DURING THE AFTERNOON HOURS. .THIS AFTERNOON... SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT). MAX TEMPERATURE.....AROUND 65. MIN HUMIDITY........25 PERCENT. WIND (20 FT)........WEST WINDS 15 TO 20 MPH WITH GUSTS TO AROUND 30 MPH BY MID-AFTERNOON. LAL.................1. MIXING HEIGHT.......3500 FT AGL INCREASING TO 4700 FT AGL. MIXING WINDS........WEST 15 MPH INCREASING TO 20 TO 28 MPH BY MID-AFTERNOON. DISPERSION INDEX....75 INCREASING TO 85. CHANCE OF PCPN......0 PERCENT. LVORI...............4. TIME (EST) 2 PM 4 PM SKY (%).........23 28 WEATHER COV..... WEATHER TYPE....NONE NONE TEMP............65 65 RH..............28 25 20 FT WIND......W 17 W 20 20 FT WIND GUST.25 30 MIX HGT (FT)....4000 4700 TRANSPORT WIND..W 26 W 28 LVORI...........1 1 DISPERSION INDX.75 85 CHC OF PCPN (%).0 0 LAL.............1 1 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING MOSTLY CLOUDY (50-60 PERCENT). MIN TEMPERATURE.....AROUND 40. MAX HUMIDITY........80 PERCENT. WIND (20 FT)........NORTHWEST WINDS 10 TO 15 MPH. LAL.................1. MIXING HEIGHT.......3700 FT AGL DECREASING TO 1100 FT AGL OVERNIGHT. MIXING WINDS........NORTHWEST 21 TO 28 MPH DECREASING TO 14 TO 18 MPH LATE IN THE EVENING. DISPERSION INDEX....60 DECREASING TO 15. CHANCE OF PCPN......0 PERCENT. LVORI...............3. TIME (EST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........33 39 46 53 56 57 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............59 51 48 45 43 41 RH..............34 52 67 74 77 80 20 FT WIND......W 15 W 13 W 13 NW 12 NW 10 NW 9 20 FT WIND GUST.20 20 20 15 15 15 MIX HGT (FT)....3700 2600 1900 1500 1300 1100 TRANSPORT WIND..W 28 W 24 NW 21 NW 16 NW 14 NW 14 LVORI...........1 2 3 3 4 4 DISPERSION INDX.60 35 24 19 15 15 CHC OF PCPN (%).0 0 0 0 0 0 LAL.............1 1 1 1 1 1 .FRIDAY... SKY/WEATHER.........PARTLY SUNNY (45-55 PERCENT). MAX TEMPERATURE.....AROUND 60. MIN HUMIDITY........30 PERCENT. WIND (20 FT)........WEST TO NORTHWEST WINDS 10 TO 15 MPH. LAL.................1. MIXING HEIGHT.......1100 FT AGL INCREASING TO 4000 FT AGL IN THE AFTERNOON. MIXING WINDS........WEST 15 TO 20 MPH. DISPERSION INDEX....25 INCREASING TO 70 IN THE AFTERNOON. CHANCE OF PCPN......0 PERCENT. LVORI...............2. $$ FORECASTER...NELSON REQUESTED BY...MARLENE BULLARD TYPE OF REQUEST...PRESCRIBED .TAG 20130228.KINGS.01/JAX