FNUS72 KFFC 191013 FWSFFC SPOT FORECAST FOR 139 141...USFS NATIONAL WEATHER SERVICE PEACHTREE CITY GA 613 AM EDT SAT MAR 19 2011 FORECAST IS BASED ON IGNITION TIME OF 1000 EDT ON MARCH 19. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A FRONTAL BOUNDARY ACROSS TENNESSEE AND NORTH CAROLINA WILL SAG SOUTHWARD INTO NORTH GEORGIA THIS AFTERNOON AND EVENING... BRINGING A CHANCE FOR A FEW SHOWERS OR THUNDERSTORMS DURING DAYTIME HEATING. EXPECT LIGHT WESTERLY WINDS THIS MORNING TO BECOME NORTH IN THE AFTERNOON...AND THEN NORTHEAST BY EARLY EVENING. A WEDGE OF COOL AIR BEHIND THE FRONT WILL SETTLE IN OVER THE AREA ON SUNDAY. MOIST SOUTHERLY WINDS IN THE MID LEVELS WILL OVERRUN THE COOL EASTERLY SURFACE WINDS TO PRODUCE AMPLE CLOUDS AND A FEW PATCHES OF LIGHT RAIN ON SUNDAY. OTHERWISE... A FEW SPOTS OF NEAR CRITICAL RH VALUES ARE POSSIBLE ACROSS PARTS OF CENTRAL GEORGIA THIS AFTERNOON...BUT DURATIONS WILL BE BRIEF. .REST OF TODAY... SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. TEMPERATURE.........63 AT IGNITION...MAX 84. RH..................72 PERCENT AT IGNITION...MIN 36 PERCENT. WIND (20 FT)........WINDS WEST-NORTHWEST AT 5 MPH AT IGNITION...THEN BECOMING NORTH AT 6 TO 7 MPH IN THE AFTERNOON. GUSTY AND ERRATIC WINDS CAN BE EXPECTED NEAR ISOLATED SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. CWR.................10 PERCENT INCREASING TO 20 PERCENT IN THE AFTERNOON. MIXING HEIGHT.......3100 FT AGL AT IGNITION...OTHERWISE 3100 FT AGL INCREASING TO 5200-5400 FT AGL BY THE AFTERNOON. TRANSPORT WINDS.....NORTHWEST AROUND 18 MPH BECOMING NORTH AROUND 8 MPH EARLY IN THE AFTERNOON. DISPERSION INDEX....8 INCREASING TO 108 LATE IN THE MORNING...THEN DECREASING TO 45 IN THE AFTERNOON. LVORI...............2. TIME (EDT) 10 AM NOON 2 PM 4 PM SKY (%).........16 16 44 55 WEATHER COV..... S CHC S CHC WEATHER TYPE....NONE NONE RNSHWR RNSHWR TEMP............63 74 80 83 RH..............72 51 42 36 20 FT WIND......WNW 5 NW 6 N 6 N 6 20 FT WIND GUST. 10 DISPERSION IDX..8 108 65 45 LVORI...........3 1 1 1 CWR.............10 10 20 20 .TONIGHT... SKY/WEATHER.........BECOMING MOSTLY CLOUDY (70-80 PERCENT). SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. TEMPERATURE.........MIN 56. RH..................MAX 90 PERCENT. WIND (20 FT)........EAST WINDS 6 TO 7 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE EVENING. CWR.................20 PERCENT. MIXING HEIGHT.......5400 FT AGL DECREASING TO 200-300 FT AGL EARLY IN THE EVENING. TRANSPORT WINDS.....NORTH AROUND 7 MPH SHIFTING TO THE EAST 13 TO 17 MPH EARLY IN THE EVENING. DISPERSION INDEX....45 DECREASING TO 11 EARLY IN THE EVENING. LVORI...............3. TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........60 70 75 75 80 80 WEATHER COV.....S CHC S CHC S CHC S CHC S CHC S CHC WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............83 74 69 65 62 60 RH..............36 50 65 75 82 87 20 FT WIND......NE 6 E 6 E 6 E 7 E 6 E 6 20 FT WIND GUST. 10 10 10 DISPERSION IDX..45 14 14 11 8 8 LVORI...........1 2 2 4 5 5 CWR.............20 20 20 20 20 20 .SUNDAY... SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SLIGHT CHANCE OF RAIN. TEMPERATURE.........MAX 69. RH..................MIN 39 PERCENT. WIND (20 FT)........EAST WINDS 6 TO 12 MPH. GUSTS UP TO 20 MPH LATE IN THE MORNING. MIXING HEIGHT.......300 FT AGL INCREASING TO 3700-5100 FT AGL IN THE MORNING. TRANSPORT WINDS.....EAST 17 TO 23 MPH. DISPERSION INDEX....11 INCREASING TO 62 IN THE MORNING. LVORI...............3. $$ FORECASTER...DARBE REQUESTED BY...TIM KOLNIK TYPE OF REQUEST...PRESCRIBED .TAG 20110319.13914.02/FFC