FNUS74 KHUN 201153 FWSHUN SPOT FORECAST FOR CHEATHAM KNOB...USFS NATIONAL WEATHER SERVICE HUNTSVILLE AL 653 AM CDT SAT MAR 20 2010 FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON MARCH 20. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... SURFACE HIGH PRESSURE OVER SOUTH GEORGIA/FLORIDA WILL CONTINUE TO SHIFT TO THE EAST TODAY AS A COLD FRONT STRETCHING FROM THE GREAT LAKES TO TEXAS ADVANCES TOWARD THE TENNESSEE VALLEY. AFTER PATCHY MORNING FOG THIS MORNING...DRY AND SEASONABLY WARM CONDITIONS ARE EXPECTED AT THE BURN SITE. LIGHT AND VARIABLE 20-FOOT WINDS THIS MORNING WILL BECOME SOUTHERLY BY THE AFTERNOON...BUT GENERALLY REMAIN LESS THAN 10 MPH. DRY CONDITIONS WILL PREVAIL THROUGH MUCH OF THE NIGHT...WITH SHOWERS AND ISOLATED THUNDERSTORMS POSSIBLE AFTER MIDNIGHT. SHOWERS AND THUNDERSTORMS WILL INCREASE IN COVERAGE ON SUNDAY...AND GUSTY WINDS ARE POSSIBLE WITHIN ANY THUNDERSTORM THROUGH MIDDAY SUNDAY. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT). PATCHY FOG EARLY IN THE MORNING. MAX TEMPERATURE.....AROUND 70. MIN HUMIDITY........34 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 10 MPH IN THE LATE MORNING AND AFTERNOON. CWR.................10 PERCENT. MIXING HEIGHT.......200 FT AGL INCREASING TO 6200-7900 FT AGL IN THE LATE MORNING AND AFTERNOON. TRANSPORT WINDS.....SOUTH 6 TO 13 MPH INCREASING TO 16 TO 17 MPH IN THE AFTERNOON. TIME (CDT) 10 AM NOON 2 PM 4 PM SKY (%).........PCLDY PCLDY MCLDY MCLDY WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............55 62 67 70 RH..............68 49 38 34 20 FT WIND......S 5 S 9 S 10 S 9 MIX HGT (FT)....6200 6200 7900 7500 TRANSPORT WIND..S 13 S 13 S 16 S 17 DISPERSION IDX..86 57 58 61 CHC OF PCPN (%).10 10 10 10 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). RAIN SHOWERS AND ISOLATED THUNDERSTORMS AFTER MIDNIGHT. MIN TEMPERATURE.....AROUND 52. MAX HUMIDITY........76 PERCENT. WIND (20 FT)........SOUTHEAST WINDS 5 TO 7 MPH EARLY IN THE EVENING BECOMING LIGHT...THEN BECOMING SOUTHEAST 5 TO 9 MPH AFTER MIDNIGHT. CWR.................10 PERCENT INCREASING TO 80 PERCENT AFTER MIDNIGHT. MIXING HEIGHT.......7500 FT AGL DECREASING TO 300-1700 FT AGL. TRANSPORT WINDS.....SOUTH 8 TO 17 MPH SHIFTING TO THE SOUTHEAST AROUND 7 MPH AFTER MIDNIGHT. TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........MCLDY MCLDY MCLDY MCLDY CLOUDY CLOUDY WEATHER COV..... DEFNTE DEFNTE WEATHER TYPE....NONE NONE NONE NONE RNSHWR RNSHWR TEMP............68 63 59 57 55 53 RH..............37 45 52 58 64 70 20 FT WIND......S 7 SE 5 SE 3 SE 5 SE 7 SE 9 MIX HGT (FT)....7500 1700 300 300 300 300 TRANSPORT WIND..S 17 S 12 S 8 S 8 SE 7 SE 7 DISPERSION IDX..61 8 5 5 6 6 CHC OF PCPN (%).10 10 10 10 80 80 .SUNDAY... SKY/WEATHER.........CLOUDY (95-100 PERCENT). RAIN SHOWERS IN THE MORNING...THEN CHANCE OF RAIN SHOWERS IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 57. MIN HUMIDITY........48 PERCENT. WIND (20 FT)........SOUTHWEST WINDS 9 TO 15 MPH. CWR.................90 PERCENT. MIXING HEIGHT.......300-2100 FT AGL INCREASING TO 2300 FT AGL LATE IN THE AFTERNOON. TRANSPORT WINDS.....SOUTHEAST 7 TO 10 MPH INCREASING TO 25 TO 28 MPH IN THE LATE MORNING AND AFTERNOON. TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........CLOUDY CLOUDY CLOUDY CLOUDY CLOUDY CLOUDY WEATHER COV.....DEFNTE DEFNTE DEFNTE DEFNTE CHANCE CHANCE WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............52 52 54 55 56 57 RH..............74 75 69 60 53 48 20 FT WIND......SE 10 SE 14 SE 15 S 14 S 12 SW 10 MIX HGT (FT)....300 1300 1700 1700 2100 2300 TRANSPORT WIND..SE 7 SE 10 SE 25 SE 25 SE 26 S 28 DISPERSION IDX..3 15 45 45 53 58 CHC OF PCPN (%).80 90 90 90 50 50 $$ FORECASTER...LEE REQUESTED BY...CLARK TYPE OF REQUEST...PRESCRIBED .TAG 20100320.CHEAT.01/HUN