FNUS72 KJAX 211350 FWSJAX SPOT FORECAST FOR ADAM PACETTI...DOF NATIONAL WEATHER SERVICE JACKSONVILLE FL 950 AM EDT WED APR 21 2010 FORECAST IS BASED ON IGNITION TIME OF 1100 EDT ON APRIL 21. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A WEAK TROUGH WILL PUSH OFFSHORE OF NORTHEAST FLORIDA THIS MORNING WITH A DRIER AIRMASS MOVING INTO THE AREA REST OF TODAY. WINDS WILL BE WEAK FROM THE NORTHWEST AROUND 5-10 MPH INITIALLY TODAY BUT THEN BECOME LIGHT AND VARIABLE EARLY IN THE AFTERNOON. A WEAK EAST TO SOUTHEAST FLOW MAY DEVELOP AFTER 3 PM IN CONJUNCTION WITH ATLANTIC COAST SEA BREEZE. -FOR THURSDAY...LOWER AFTERNOON RELATIVE HUMIDITY VALUES AND LIGHT AND VARIABLE WINDS EXPECTED. THE LOW RELATIVE HUMIDITY WILL BE LIMITED IN DURATION DURING THE AFTERNOON HOURS. THE NEXT COLD FRONT WILL APPROACH THE REGION ON SUNDAY WITH INCREASING SOUTHERLY WINDS AHEAD OF THE FRONT. .REST OF TODAY... SKY/WEATHER.........PARTLY SUNNY (45-55 PERCENT). SLIGHT CHANCE OF SHOWERS. MAX TEMPERATURE.....AROUND 79. MIN HUMIDITY........42 PERCENT. WIND (20 FT)........NORTHWEST WINDS 7 TO 11 MPH. GUSTS UP TO 16 MPH EARLY IN THE AFTERNOON. LAL.................1. MIXING HEIGHT.......1200 FT AGL INCREASING TO NEAR 6400 FT AGL. MIXING WINDS........NORTHWEST 13 TO 20 MPH. DISPERSION INDEX....80. CHANCE OF PCPN......20 PERCENT. LVORI...............MISSING. TIME (EDT) 11 AM 1 PM 3 PM 5 PM SKY (%).........40 52 46 36 WEATHER COV.....S CHC S CHC S CHC S CHC WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR TEMP............73 76 78 77 RH..............58 49 44 44 20 FT WIND......NW 7 NW 7 NW 6 NW/SE 6 20 FT WIND GUST.12 16 16 15 MIX HGT (FT)....3400 3400 6400 4900 TRANSPORT WIND..NW 20 NW 20 NW 18 W 13 DISPERSION INDX.23 61 78 60 CHC OF PCPN (%).20 20 20 20 LAL.............1 1 1 1 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT). SLIGHT CHANCE OF RAIN SHOWERS EARLY IN THE EVENING. MIN TEMPERATURE.....AROUND 57. MAX HUMIDITY........87 PERCENT. WIND (20 FT)........SOUTHWEST 5 TO 7 MPH EARLY IN THE EVENING...THEN BECOMING LIGHT IN THE LATE EVENING AND OVERNIGHT. LAL.................1. MIXING HEIGHT.......3300-4900 FT AGL DECREASING TO 200-1800 FT AGL LATE IN THE EVENING. MIXING WINDS........WEST AROUND 13 MPH SHIFTING TO THE SOUTHWEST 2 TO 7 MPH EARLY IN THE EVENING...THEN SHIFTING TO THE NORTH AROUND 0 MPH AFTER MIDNIGHT. DISPERSION INDEX....0. CHANCE OF PCPN......0 PERCENT. LVORI...............4. TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........31 28 28 15 8 8 WEATHER COV.....S CHC WEATHER TYPE....RNSHWR NONE NONE NONE NONE NONE TEMP............76 71 66 64 62 60 RH..............46 56 66 72 76 79 20 FT WIND......WSW 7 S 6 SW 3 SW 1 N 0 N 0 20 FT WIND GUST.15 10 10 5 5 5 MIX HGT (FT)....4900 3300 3300 1800 200 200 TRANSPORT WIND..W 13 SW 7 SW 7 SW 2 N 0 N 0 LVORI...........4 4 4 4 4 4 DISPERSION INDX.61 13 13 5 3 3 CHC OF PCPN (%).20 0 0 0 0 0 LAL.............1 1 1 1 1 1 .THURSDAY... SKY/WEATHER.........SUNNY (5-15 PERCENT). MAX TEMPERATURE.....AROUND 82. MIN HUMIDITY........36 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING NORTH 6 TO 7 MPH LATE IN THE MORNING...THEN SHIFTING TO THE SOUTHEAST 7 TO 9 MPH IN THE AFTERNOON. LAL.................1. MIXING HEIGHT.......300 FT AGL INCREASING TO 6800 FT AGL IN THE AFTERNOON. MIXING WINDS........NORTH 2 TO 8 MPH INCREASING TO SOUTHEAST 14 TO 16 MPH EARLY IN THE AFTERNOON. DISPERSION INDEX....94. CHANCE OF PCPN......0 PERCENT. $$ FORECASTER...SHASHY REQUESTED BY...HARRIS JARRIEL SENIOR FOREST RANGER TYPE OF REQUEST...PRESCRIBED .TAG 20100421.ADAMP.01/JAX