FNUS72 KFFC 251034 FWSFFC SPOT FORECAST FOR NARROWS 7 12...USFS NATIONAL WEATHER SERVICE PEACHTREE CITY GA 634 AM EDT TUE SEP 25 2012 FORECAST IS BASED ON IGNITION TIME OF 1000 EDT ON SEPTEMBER 25. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... SURFACE HIGH PRESSURE OVER THE MID-ATLANTIC STATES WILL MOVE OFFSHORE THIS MORNING...BUT THE GRADIENT WILL SLACKEN THROUGH THE DAY. MOISTURE WILL BEGIN TO INCREASE TODAY AS EASTERLY FLOW TRANSITIONS TO SOUTHEASTERLY ACROSS THE AREA. RELATIVE HUMIDITY VALUES WILL DROP TO THE MID 30 PERCENT RANGE THIS AFTERNOON NEAR THE BURN SITE BUT SHOULD REMAIN ABOVE CRITICAL LEVELS. ONCE THE MORNING INVERSION BREAKS...WINDS WILL BE FAIRLY CONSTANT THROUGH THE DAY AS THERE WILL BE VERY LITTLE CHANGE IN THE UPPER FLOW UNTIL LATER ON WEDNESDAY. A WEAK UPPER DISTURBANCE WILL MOVE ACROSS THE OHIO VALLEY TODAY AND THUS NORTHWEST GEORGIA SHOULD SEE AN INCREASE IN HIGH CLOUDS. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). MAX TEMPERATURE.....AROUND 81. MIN HUMIDITY........36 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 7 MPH. MIXING HEIGHT.......INCREASING TO 3500-4600 FT AGL LATE IN THE MORNING. TRANSPORT WINDS.....SOUTHEAST 1 TO 6 MPH SHIFTING TO THE SOUTH 7 TO 12 MPH IN THE LATE MORNING AND AFTERNOON. DISPERSION INDEX....3 INCREASING TO 46 LATE IN THE MORNING...THEN DECREASING TO 31 IN THE AFTERNOON. LVORI...............5. TIME (EDT) 10 AM NOON 2 PM 4 PM SKY (%).........33 40 46 43 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............59 71 78 81 RH..............68 50 40 36 20 FT WIND......SE 1 S 3 S 6 S 7 20 FT WIND GUST. 5 10 15 DISPERSION IDX..4 44 30 29 LVORI...........3 1 2 2 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT). MIN TEMPERATURE.....AROUND 57. MAX HUMIDITY........90 PERCENT. WIND (20 FT)........SOUTH WINDS AROUND 6 MPH EARLY IN THE EVENING BECOMING LIGHT. DISPERSION INDEX....37 DECREASING TO 5 EARLY IN THE EVENING. LVORI...............3. TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........39 36 36 32 26 26 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............80 71 65 62 61 59 RH..............39 58 74 82 83 85 20 FT WIND......S 6 S 1 S 1 S 1 W 0 W 0 20 FT WIND GUST.10 DISPERSION IDX..38 7 8 3 2 2 LVORI...........1 3 3 5 5 5 .WEDNESDAY... SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT). MAX TEMPERATURE.....AROUND 85. MIN HUMIDITY........36 PERCENT. WIND (20 FT)........LIGHT WINDS. DISPERSION INDEX....3 INCREASING TO 55 LATE IN THE MORNING...THEN DECREASING TO 35 EARLY IN THE AFTERNOON DECREASING TO 30 LATE IN THE AFTERNOON. LVORI...............4. TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........30 32 32 32 20 20 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............58 57 67 77 83 85 RH..............85 90 71 53 41 36 20 FT WIND......SW 0 S 0 S 1 S 2 S 3 S 3 20 FT WIND GUST. 5 5 5 DISPERSION IDX..2 2 4 51 31 30 LVORI...........5 7 3 1 1 2 $$ FORECASTER...PALMER REQUESTED BY...JEFFREY SCHARDT TYPE OF REQUEST...PRESCRIBED .TAG 20120925.POCKE.01/FFC