FNUS72 KTAE 241455 FWSTAE SPOT FORECAST FOR PFTC...EGLIN AFB NATIONAL WEATHER SERVICE TALLAHASSEE FL 955 AM EST TUE JAN 24 2012 FORECAST IS BASED ON IGNITION TIME OF 1000 CST ON JANUARY 24. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE AT (850)942-8835. .DISCUSSION...BURN LOCATION IS NOW IN THE WAKE OF A COLD FRONT LOCATED OVER SOUTHWEST GEORGIA AND THE FLORIDA BIG BEND. SLIGHTLY DRIER AND COOLER AIR IS NOW ARRIVING ON LIGHT NORTHEAST FLOW. EVEN WITH THE DRIER AIR...RELATIVE HUMIDITY VALUES WILL REMAIN WELL ABOVE CRITICAL LEVELS THROUGH THE FORECAST PERIOD. IN ADDITION LOW MIXING HEIGHTS AND LIGHT TRANSPORT WINDS WILL RESULT IN ABNORMALLY LOW DISPERSION INDICES THROUGH THIS AFTERNOON. JUST A SLIGHT CHANCE OF AN AFTERNOON SHOWER OR SPRINKLE...HOWEVER THE CHANCE OF MEASURABLE RAINFALL IS LOW. MORE EFFICIENT MIXING...AND A TIGHTER GRADIENT WILL ALLOW FOR HIGHER DISPERSION INDICES DURING WEDNESDAY. .TODAY... SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). ISOLATED SHOWERS POSSIBLE IN THE AFTERNOON. TEMPERATURE.........65 AT IGNITION...MAX 71. RH..................74 PERCENT AT IGNITION...MIN 60 PERCENT. WIND (20 FT)........WINDS NORTHEAST AT 5 TO 7 MPH. CWR.................25 PERCENT. LAL.................1. MIXING HEIGHT.......1000 FT AGL AT IGNITION...INCREASING TO 2700 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....NORTHWEST AROUND 7 MPH SHIFTING TO THE EAST AROUND 5 MPH IN THE AFTERNOON. DISPERSION INDICES..AROUND 20. TIME (CST) 10 AM NOON 2 PM 4 PM SKY (%).........70 83 83 79 WEATHER COV..... CHANCE CHANCE WEATHER TYPE....NONE NONE RNSHWR RNSHWR TEMP............64 68 70 68 RH..............74 63 61 66 20 FT WIND......NE 4 NE 3 NE 3 E 3 20 FT WIND GUST.10 10 10 10 TRANSPORT WIND..NE 6 E 5 E 5 E 4 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (85-95 PERCENT). SLIGHT CHANCE OF A RAIN SHOWER...MAINLY IN THE EVENING. TEMPERATURE.........MIN 54. RH..................MAX 100 PERCENT. WIND (20 FT)........EAST WINDS LESS THAN 5 MPH. CWR.................20 PERCENT. LAL.................1. MIXING HEIGHT.......DECREASING TO UNDER 500 FT AGL BY LATE EVENING. TRANSPORT WINDS.....EAST LESS THAN 5 MPH. DISPERSION INDICES..AROUND 2. TIME (CST) 5 PM 7 PM 9 PM 11 PM 1 AM 3 AM SKY (%).........79 99 95 95 90 85 WEATHER COV.....CHANCE CHANCE CHANCE WEATHER TYPE....RNSHWR RNSHWR RNSHWR NONE NONE NONE TEMP............67 64 62 60 59 57 RH..............71 79 83 85 88 91 20 FT WIND......NE 2 NE 2 E 2 E 2 E 2 E 2 20 FT WIND GUST.10 10 10 10 10 10 TRANSPORT WIND..E 4 E 3 E 3 E 3 E 3 E 3 .WEDNESDAY... SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). TEMPERATURE.........MAX 74. RH..................MIN 60 PERCENT. WIND (20 FT)........LIGHT EAST WINDS BECOMING SOUTHEAST 6 TO 9 MPH. CWR.................20 PERCENT...MAINLY IN THE MORNING. LAL.................1. MIXING HEIGHT.......LESS THAN 500 FT AGL INCREASING TO AROUND 3500 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....EAST 5 MPH BECOMING SOUTHEAST AND INCREASING TO 12 TO 15 MPH IN THE AFTERNOON. DISPERSION INDICES..60 TO 65. TIME (CST) 5 AM 7 AM 9 AM 11 AM 1 PM 3 PM SKY (%).........85 80 73 73 66 63 WEATHER COV..... S CHC S CHC S CHC WEATHER TYPE....NONE RNSHWR RNSHWR RNSHWR NONE NONE TEMP............55 57 62 68 72 75 RH..............94 98 93 78 68 63 20 FT WIND......E 2 E 4 E 5 SE 6 SE 6 SE 5 20 FT WIND GUST.10 10 15 15 15 15 TRANSPORT WIND..E 3 E 4 SE 8 SE 10 SE 13 SE 13 $$ FORECASTER...BRYAN MROCZKA REQUESTED BY...DISPATCH TYPE OF REQUEST...PRESCRIBED .TAG 20120124.PFTC_.01/TAE