FNUS74 KHUN 072219 FWSHUN SPOT FORECAST FOR KEY MILL - AFTERNOON UPDATE...USDA FOREST SERVICE NATIONAL WEATHER SERVICE HUNTSVILLE AL 419 PM CST WED MAR 7 2012 FORECAST IS BASED ON IGNITION TIME OF 0900 CST ON MARCH 07. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... MOSTLY CLOUDY SKIES AND GENERALLY DRY WEATHER CONDITIONS WILL PREVAIL OVERNIGHT IN THE VICINITY OF THE PRESCRIBED BURN SITE ACROSS SOUTHERN LAWRENCE COUNTY. MODERATE TO STRONG SOUTHERLY WINDS CAN BE EXPECTED IN THE TRANSPORT LAYER OVERNIGHT...WITH SUSTAINED SPEEDS IN THE 15-25 MPH RANGE DIMINISHING ONLY SLIGHTLY IN THE HOURS JUST BEFORE DAWN. THIS WILL RESULT IN GOOD SMOKE PLUME DISPERSION TO THE NORTH THROUGH LATE THIS EVENING...BEFORE MIXING HEIGHTS AND DISPERSION INDICES BOTH LOWER WITH COOLING SURFACE TEMPERATURES. .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. MIN TEMPERATURE.....AROUND 55. MAX HUMIDITY........85 PERCENT. WIND (20 FT)........SOUTHEAST WINDS 9 TO 10 MPH. MIXING HEIGHT.......3000 FT AGL DECREASING TO 300-1000 FT AGL IN THE LATE EVENING AND OVERNIGHT. TRANSPORT WINDS.....SOUTH 18 TO 25 MPH DECREASING TO AROUND 10 MPH LATE IN THE NIGHT. TIME (CST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........MCLDY MCLDY MCLDY MCLDY MCLDY MCLDY WEATHER COV..... S CHC S CHC S CHC WEATHER TYPE....NONE NONE NONE RNSHWR RNSHWR RNSHWR TEMP............66 62 60 58 57 55 RH..............50 57 63 68 74 79 20 FT WIND......S 10 S 10 S 9 S 9 S 9 SE 9 MIX HGT (FT)....3000 3000 1000 500 500 300 TRANSPORT WIND..S 25 S 25 S 21 S 18 S 18 S 10 DISPERSION IDX..60 60 27 16 16 9 .THURSDAY... SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE MORNING...THEN CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 74. MIN HUMIDITY........51 PERCENT. WIND (20 FT)........SOUTH WINDS 7 TO 13 MPH. MIXING HEIGHT.......400 FT AGL INCREASING TO 5400 FT AGL. TRANSPORT WINDS.....SOUTH AROUND 8 MPH INCREASING TO SOUTHWEST 21 TO 25 MPH IN THE LATE MORNING AND AFTERNOON. TIME (CST) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........MCLDY MCLDY MCLDY MCLDY MCLDY MCLDY WEATHER COV.....S CHC S CHC S CHC CHANCE CHANCE CHANCE WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............55 59 65 70 73 73 RH..............85 76 65 57 53 53 20 FT WIND......SE 9 S 9 S 12 S 13 S 10 S 8 MIX HGT (FT)....400 400 2400 4300 4300 5400 TRANSPORT WIND..S 8 S 8 S 21 SW 25 SW 25 SW 21 DISPERSION IDX..7 7 28 73 73 65 $$ FORECASTER...DIXON REQUESTED BY...NIKKA JEFFERSON TYPE OF REQUEST...PRESCRIBED .TAG 20120307.KEYMI.03/HUN