FNUS72 KFFC 071038 FWSFFC SPOT FORECAST FOR 122...USFS NATIONAL WEATHER SERVICE PEACHTREE CITY GA 638 AM EDT WED APR 7 2010 FORECAST IS BASED ON IGNITION TIME OF 1000 EDT ON APRIL 07. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... HIGH PRESSURE ALOFT...WHICH HAS PERSISTED FOR THE PAST SEVERAL DAYS ACROSS THE SOUTHEAST U.S...WILL BEGIN TO SHIFT EAST TODAY AS A COLD FRONT AND UPPER TROUGH MOVE INTO THE AREA FROM THE NORTHWEST. UNSEASONABLY WARM...DRY CONDITIONS WILL GIVE WAY TO A CHANCE OF SHOWERS AND THUNDERSTORMS THURSDAY...ALONG WITH COOLER TEMPERATURES. DRY WEATHER WILL RETURN FOR FRIDAY AND CONTINUE INTO NEXT WEEK. TEMPERATURES WILL COOL BACK TO SEASONAL LEVELS...THEN GRADUALLY WARM ABOVE NORMAL AGAIN NEXT WEEK. ONE MORE WARM...DRY TODAY MAY PUSH RELATIVE HUMIDITY VALUES IN THE NORTHEAST PART OF THE STATE NEAR CRITICAL VALUES THIS AFTERNOON. OTHERWISE...CRITICAL FIRE WEATHER RELATIVE HUMIDITY AND WIND VALUES ARE NOT EXPECTED TODAY. RAIN AND COOLER TEMPERATURES WILL PREVENT CRITICAL FIRE WEATHER CONDITIONS FROM BEING REALIZED THURSDAY AND FRIDAY. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). MAX TEMPERATURE.....AROUND 88. MIN HUMIDITY........33 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 6 TO 10 MPH IN THE LATE MORNING AND AFTERNOON. MIXING HEIGHT.......0 FT AGL INCREASING TO 6900-7000 FT AGL. TRANSPORT WINDS.....SOUTH AROUND 1 MPH INCREASING TO SOUTHWEST 20 TO 25 MPH EARLY IN THE MORNING. DISPERSION INDEX....95 LVORI...............5. TIME (EDT) 10 AM NOON 2 PM 4 PM SKY (%).........42 42 44 44 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............71 80 86 88 RH..............62 46 37 33 20 FT WIND......SW 6 SW 8 SW 9 S 10 20 FT WIND GUST. 10 10 15 DISPERSION IDX..120 120 95 95 LVORI...........1 1 1 1 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING MOSTLY CLOUDY (55-65 PERCENT). MIN TEMPERATURE.....AROUND 61. MAX HUMIDITY........85 PERCENT. WIND (20 FT)........SOUTH WINDS 5 TO 8 MPH EARLY IN THE EVENING BECOMING LIGHT...THEN BECOMING SOUTHWEST AROUND 5 MPH AFTER MIDNIGHT. CWR.................0 PERCENT. MIXING HEIGHT.......6900 FT AGL DECREASING TO 100 FT AGL EARLY IN THE EVENING. TRANSPORT WINDS.....SOUTHWEST 13 TO 20 MPH. .THURSDAY... SKY/WEATHER.........PARTLY SUNNY (65-75 PERCENT) THEN BECOMING CLOUDY (85-95 PERCENT). THERE IS A CHANCE OF SHOWERS AND THUNDERSTORMS FROM 11 AM TO 1 PM...THEN SHOWERS AND THUNDERSTORMS LIKELY FROM 1 PM TO 8 PM. MAX TEMPERATURE.....AROUND 75. MIN HUMIDITY........48 PERCENT. WIND (20 FT)........SOUTHWEST WINDS 5 TO 12 MPH. GUSTS UP TO 20 MPH EARLY IN THE AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS EARLY IN THE MORNING. CWR.................0 PERCENT INCREASING TO 70 PERCENT EARLY IN THE MORNING. LAL.................1 UNTIL 0800...THEN 2 UNTIL 1400...THEN 4. $$ FORECASTER...MCMULLEN REQUESTED BY...TIM KOLNIK TYPE OF REQUEST...PRESCRIBED .TAG 20100407.122__.01/FFC