FNUS72 KCAE 161320 FWSCAE SPOT FORECAST FOR SRS_CPT_27...US FOREST SERVICE NATIONAL WEATHER SERVICE COLUMBIA SC 820 AM EST FRI DEC 16 2011 FORECAST IS BASED ON IGNITION TIME OF 1000 EST ON DECEMBER 16. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...STALLED FRONTAL BOUNDARY WILL BEGIN MOVING INTO THE REGION THIS AFTERNOON. THIS WILL ONLY BRING A SLIGHT CHANCE FOR RAIN ACROSS THE CSRA. ANY RAINFALL TOTALS ARE EXPECTED TO BE LESS THAN ONE TENTH OF AN INCH. HIGH PRESSURE WILL RETURN TO THE REGION ON SATURDAY ALONG WITH SLIGHTLY COOLER AND DRIER AIR. AS FOR ANY INVERSIONS...MAY EXPERIENCE TWO SEPARATE PERIODS. THE FIRST WILL SHALLOW AND IS EXPECTED TO OCCUR FROM JUST AFTER SUNSET THIS EVENING AROUND 6 PM AND LASTING THROUGH MIDNIGHT...WITH AN INVERSION HEIGHT OF AROUND 5 HUNDRED FEET. THE SECOND INVERSION PERIOD WILL INVOLVE A DEEPER INVERSION AND WILL OCCUR BEHIND THE COLD FRONT AFTER 3 AM AND LASTING THROUGH DAYBREAK. THE INVERSION HEIGHT IS EXPECTED TO BE AROUND 1KFT. BETWEEN THESE TWO INVERSION PERIODS WILL BE WHEN THE FRONTAL BOUNDARY WILL BE PUSHING THROUGH. THERE WILL BE A WIND SHIFT DURING THE OVERNIGHT PERIOD ASSOCIATED WITH THE FRONTAL PASSAGE. WINDS TODAY AND EARLY TONIGHT EXPECTED TO BE OUT OF THE SOUTHWEST...THEN WILL SHIFT AROUND TO THE NORTHWEST BETWEEN 1 AM AND 3 AM. .TODAY... TIME (EST) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM SKY (%)..............39 42 44 45 46 47 48 49 WEATHER COV.......... WEATHER TYPE......... TEMP.................62 66 69 72 73 74 74 71 RH...................72 65 61 55 53 51 51 55 20 FT WIND DIR.......SW SW SW SW SW SW SW SW 20 FT WIND DIR.......230 230 230 230 230 230 230 230 20 FT WIND SPD.......5 5 6 6 6 5 5 5 20 FT WIND GUST......10 10 15 15 15 10 10 10 MIX HGT (KFT)........2.3 3.1 3.7 4.1 3.8 3.4 2.7 2.0 TRANSP WIND DIR......SW SW SW SW SW SW SW SW TRANSP WIND SPD......10 13 14 15 15 14 13 10 LVORI................M M M M M M M M .TONIGHT... TIME (EST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%)..............50 52 57 62 63 61 WEATHER COV.......... WEATHER TYPE.........NONE NONE NONE NONE NONE NONE TEMP.................66 60 56 54 52 50 RH...................65 81 93 100 100 100 20 FT WIND...........SW 4 SW 4 W 4 W 4 W 4 NW 4 20 FT WIND GUST......10 10 10 10 10 10 MIX HGT (FT).........1300 600 400 400 300 200 TRANSPORT WIND.......SW 9 SW 7 SW 6 W 6 W 6 NW 6 LVORI................M M M M M M .SATURDAY... TIME (EST) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%)..............60 57 43 30 25 19 WEATHER COV.......... WEATHER TYPE.........NONE NONE NONE NONE NONE NONE TEMP.................49 50 56 62 64 65 RH...................100 89 64 48 41 37 20 FT WIND...........N 4 N 4 N 5 N 5 N 5 N 4 20 FT WIND GUST......10 10 10 10 10 10 MIX HGT (FT).........600 1600 3100 4300 4400 3300 TRANSPORT WIND.......N 7 NE 7 N 8 N 9 N 9 NE 8 LVORI................M M M M M M $$ FORECASTER...LISCINSKY REQUESTED BY...PAUL VARNEDOE TYPE OF REQUEST...PRESCRIBED .TAG 20111216.SRS_C.01/CAE