FNUS72 KJAX 100819 FWSJAX SPOT FORECAST FOR FAVER-DYKES SP...FLA PARK SERVICE NATIONAL WEATHER SERVICE JACKSONVILLE FL 419 AM EDT FRI APR 10 2009 FORECAST IS BASED ON IGNITION TIME OF 0930 EDT ON APRIL 10. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A HIGH PRESSURE RIDGE EXTENDING FROM SOUTH FLORIDA INTO THE WESTERN ATLANTIC WILL SHIFT EAST AS A COLD FRONT APPROACHES THE AREA THROUGH SATURDAY. THIS FRONT WILL MOVE SOUTH OF THE AREA SATURDAY NIGHT AS IT BECOMES DIFFUSE. WINDS WILL BE FROM THE SOUTH TO SOUTHWEST AT 10 TO 15 MPH AND GUSTY TODAY. RH VALUES WILL DROP TO NEAR 40 PERCENT THIS AFTERNOON AS DRY AIR MIXES TO THE SURFACE AND BEFORE AN AFTERNOON SEABREEZE DEVELOPS. DISPERSION LEVELS WILL APPROACH 75 THIS AFTERNOON. HIGHER RH VALUES AND LIGHTER WINDS ARE EXPECTED ON SATURDAY ALONG WITH A CHANCE OF SHOWERS AND THUNDERSTORMS. .TODAY... SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT). MAX TEMPERATURE.....82. MIN HUMIDITY........42 PERCENT. WIND (20 FT)........SOUTH WINDS 7 TO 13 MPH. GUSTS UP TO 25 MPH LATE IN THE MORNING AND IN THE AFTERNOON. LAL.................1. MIXING HEIGHT.......800-2500 FT AGL INCREASING TO 2600-3800 FT AGL EARLY IN THE AFTERNOON. MIXING WINDS........SOUTH 13 TO 22 MPH. DISPERSION INDEX....78. TIME (EDT) 9 AM 11 AM 1 PM 3 PM 5 PM SKY (%).........89 61 61 34 37 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE TEMP............70 77 80 81 81 RH..............71 53 46 45 49 20 FT WIND......S 9 S 12 S 13 SSE 13 SSE 10 20 FT WIND GUST.15 20 25 25 20 MIX HGT (FT)....1200 2500 3800 3800 2600 TRANSPORT WIND..S 13 S 20 S 22 S 22 S 18 LAL.............1 1 1 1 1 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). MIN TEMPERATURE.....62. MAX HUMIDITY........96 PERCENT. WIND (20 FT)........SOUTHWEST WINDS 6 TO 10 MPH. LAL.................1. MIXING HEIGHT.......900-2600 FT AGL DECREASING TO 400-800 FT AGL AFTER MIDNIGHT. MIXING WINDS........SOUTH 15 TO 18 MPH BECOMING SOUTHWEST 8 TO 16 MPH LATE IN THE EVENING. DISPERSION INDEX....9. TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........37 39 39 42 45 45 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............79 74 70 68 66 65 RH..............49 59 69 75 82 87 20 FT WIND......S 10 S 8 S 7 SW 7 SW 7 SW 6 20 FT WIND GUST.20 15 15 10 10 10 MIX HGT (FT)....2600 1500 1500 900 400 400 TRANSPORT WIND..S 18 S 15 S 15 SW 8 SW 13 SW 13 LAL.............1 1 1 1 1 1 .SATURDAY... SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT). A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....83. MIN HUMIDITY........50 PERCENT. WIND (20 FT)........WEST WINDS 6 TO 10 MPH. LAL.................1 UNTIL 1400...THEN 3. MIXING HEIGHT.......800-2300 FT AGL INCREASING TO 2400-3300 FT AGL EARLY IN THE AFTERNOON. MIXING WINDS........WEST 14 TO 23 MPH INCREASING TO 17 TO 24 MPH IN THE AFTERNOON. DISPERSION INDEX....73. $$ FORECASTER...CARROLL REQUESTED BY...R MULHOLLAND TYPE OF REQUEST...PRESCRIBED .TAG 20090410.FAVER.01/JAX