FNUS72 KFFC 101600 AAA FWSFFC SPOT FORECAST FOR LITTLE PINEKNOT RX...UPDATED NATIONAL WEATHER SERVICE PEACHTREE CITY GA 1200 PM EDT SUN MAR 10 2013 FORECAST IS BASED ON IGNITION TIME OF 1000 EDT ON MARCH 10. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... UPDATED TO BETTER INITIALIZE AND IMPROVE FORECAST OF DEWPOINTS... CLOUDS AND RH VALUES IN AND AROUND THE BURN SITE FOR THE AFTERNOON. EXPECT LARGE BREAKS IN CLOUDS UNTIL MID AFTERNOON... WITH INCREASING HIGH LEVEL CLOUDS BY MID AFTERNOON...THEN MID LEVEL CLOUDS BY LATE AFTERNOON OR EARLY EVENING. MOSTLY CLOUDY CONDITIONS ARE EXPECTED BY MID TO LATE AFTERNOON. DRIER AIR IN THE MID LEVELS HAVE MIXED DOWN AND RESULTED IN DRIER DEWPOINTS AND LOWER RH VALUES THEN PREVIOUSLY EXPECTED. AN UPDATE OF EXPECTED DEWPOINTS AND RH VALUES THROUGH THE AFTERNOON SUGGEST THE MINIMUM RH VALUES SHOULD HOLD IN THE 36-39 PERCENT RANGE DURING THE AFTERNOON AROUND THE BURN SITE. THE SOUTHERLY WINDS WILL CONTINUE TO SPREAD WARMER DEWPOINTS INTO THE BURN SITE... AND THIS SHOULD ONLY ALLOW THE MINIMUM RH VALUES IN THE MID AND UPPER 30S TO BE FAIRLY BRIEF... WITH INCREASING RH VALUES BY 4-5 PM THIS AFTERNOON MORE LIKELY. HOWEVER... HAVE LEANED TOWARD WORSE CASE SCENARIO FOR NOW JUST INCASE. .REST OF TODAY... SKY/WEATHER.........PARTLY SUNNY (40-55 PERCENT). MAX TEMPERATURE.....AROUND 72. MIN HUMIDITY........40 PERCENT. WIND (20 FT)........SE WINDS 8 TO 10 MPH. GUSTS UP TO 20 MPH. CWR.................0 PERCENT. MIXING HEIGHT.......3300-4600 FT AGL. TRANSPORT WINDS.....SOUTH 18 TO 24 MPH. DISPERSION INDEX....INCREASING TO 77-81 IN THE AFTERNOON. LVORI...............2. TIME (EDT) 10 AM x09NOONx092 PMx094 PM SKY (%).........40x0945x0950x0955 WEATHER COV..... WEATHER TYPE....NONEx09NONEx09NONEx09NONE TEMP............55x0962x0968x0971 RH..............47x0942x0936x0937 20 FT WIND......SE 8x09SE 10x09SE 10x09SE 10 20 FT WIND GUST.15x0920x0920x0920 DISPERSION IDX..18x0981x0978x0977 LVORI...........3x09 1x09 1x09 1 CWR.............0x09 0x09 0x09 0 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (55-60 PERCENT) THEN BECOMING MOSTLY CLOUDY (65-75 PERCENT). MIN TEMPERATURE.....AROUND 51. MAX HUMIDITY........86 PERCENT. WIND (20 FT)........SOUTHEAST WINDS 7 TO 9 MPH. CWR.................10 PERCENT. LAL.................1. MIXING HEIGHT.......4600 FT AGL DECREASING TO 300 FT AGL EARLY IN THE EVENING. TRANSPORT WINDS.....SOUTHEAST 8 TO 16 MPH. DISPERSION INDEX....62 DECREASING TO 7. LVORI...............3. TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........55 60 65 65 70 75 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............71 67 62 58 56 54 RH..............39 48 60 71 76 80 20 FT WIND......SE 9 SE 7 SE 7 SE 7 SE 7 SE 7 20 FT WIND GUST.15 15 10 10 15 10 DISPERSION IDX..62 7 7 6 6 7 LVORI...........1 2 3 3 4 4 CWR.............0 0 0 0 0 10 .MONDAY... SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). SLIGHT CHANCE OF RAIN SHOWERS IN THE MORNING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE DAY. RAIN SHOWERS LIKELY IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 70. MIN HUMIDITY........57 PERCENT. WIND (20 FT)........SOUTH WINDS 7 TO 14 MPH. GUSTS UP TO 25 MPH LATE IN THE MORNING. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS LATE IN THE MORNING. CWR.................10 PERCENT INCREASING TO 60 PERCENT IN THE LATE MORNING AND AFTERNOON. LAL.................1 UNTIL 1100...THEN 2. MIXING HEIGHT.......300-700 FT AGL INCREASING TO 3800-5100 FT AGL LATE IN THE MORNING. TRANSPORT WINDS.....SOUTH 13 TO 20 MPH INCREASING TO 24 TO 31 MPH IN THE LATE MORNING AND AFTERNOON. DISPERSION INDEX....9 INCREASING TO 89. LVORI...............3. TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........78 84 86 88 90 92 WEATHER COV..... S CHC S CHC CHANCE LIKELY WEATHER TYPE....NONE NONE RNSHWR RNSHWR RNSHWR RNSHWR TEMP............52 52 57 63 66 69 RH..............84 86 77 69 64 58 20 FT WIND......SE 7 SE 7 SE 9 S 13 S 14 S 14 20 FT WIND GUST.10 15 15 20 25 25 DISPERSION IDX..7 11 22 84 91 87 LVORI...........4 4 3 1 1 1 CWR.............10 10 20 20 40 60 $$ FORECASTER...DARBE REQUESTED BY...NEAL BROWN TYPE OF REQUEST...PRESCRIBED .TAG 20130310.LITTL.01/FFC