FNUS72 KCAE 091208 FWSCAE SPOT FORECAST FOR CSNWR RX 4 9 2012...US FISH AND WILDLIFE SERVICE NATIONAL WEATHER SERVICE COLUMBIA SC 808 AM EDT MON APR 9 2012 FORECAST IS BASED ON IGNITION TIME OF 0900 EDT ON APRIL 09. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... ...SIGNIFICANT WIND SHIFTS EXPECTED TODAY... A DRY SURFACE TROUGH CAME THROUGH EARLY THIS MORNING. ANOTHER DRY SURFACE TROUGH WILL COME THROUGH TONIGHT. THIS WILL LEAD TO CHANGING WIND DIRECTIONS TODAY AND TONIGHT. WINDS BEHIND THE FIRST TROUGH THIS MORNING ARE GENERALLY OUT OF THE NORTH...BUT THE WINDS WILL TRANSITION TO SOUTHWEST BY LATE THIS AFTERNOON AHEAD OF THE NEXT APPROACHING TROUGH. WINDS ARE EXPECTED TO SHIFT IN A CLOCKWISE OR VEERING DIRECTION TODAY...WITH A PERIOD OF LIGHT AND VARIABLE WINDS POSSIBLE IN THE MIDDAY TO EARLY AFTERNOON HOURS. BASED ON UPSTREAM OBSERVATIONS THIS MORNING...MADE A SLIGHT DOWNWARD ADJUSTMENT TO THE DEWPOINTS AND RELATIVE HUMIDITY VALUES TODAY. EXPECT RH VALUES AS LOW AS 15 TO 20 PERCENT BY MID AFTERNOON. SOME WIND IS EXPECTED OVERNIGHT...SO THOUGH AN INVERSION IS POSSIBLE...IT IS NOT EXPECTED TO BE VERY STRONG AND FAIR DISPERSION IS EXPECTED...THOUGH THERE COULD BE A PERIOD OF POOR DISPERSION AROUND OR BEFORE DAYBREAK. NO SIGNIFICANT FOG EXPECTED LATE TONIGHT/EARLY TUESDAY MORNING DUE TO SOME WIND AND DRY AIR. .TODAY... TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM SKY (%)..............23 12 7 7 6 6 6 5 5 WEATHER COV.......... WEATHER TYPE......... TEMP.................57 62 67 70 72 74 76 77 77 RH...................47 36 28 24 22 20 18 18 18 20 FT WIND DIR.......N NE E E S SW SW SW SW 20 FT WIND DIR.......020 050 070 110 180 210 220 220 230 20 FT WIND SPD.......3 3 4 4 4 5 6 7 8 20 FT WIND GUST......5 10 10 10 5 10 10 15 15 MIX HGT (KFT)........1.4 2.2 2.8 3.5 4.0 4.4 4.9 5.2 5.0 TRANSP WIND DIR......N NW NW W W W W W SW TRANSP WIND SPD......6 6 7 7 8 9 9 10 10 LVORI................3 2 2 2 2 1 1 1 1 .TONIGHT... TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%)..............6 10 9 9 9 8 WEATHER COV.......... WEATHER TYPE.........NONE NONE NONE NONE NONE NONE TEMP.................75 68 62 57 54 51 RH...................20 28 43 55 59 63 20 FT WIND...........SW 7 SW 5 SW 6 SW 6 W 5 W 5 20 FT WIND GUST......15 10 10 10 10 10 MIX HGT (FT).........4100 900 600 400 300 200 TRANSPORT WIND.......SW 10 SW 9 W 9 W 9 W 8 W 6 LVORI................1 2 2 3 3 5 $$ FORECASTER...MILLER REQUESTED BY...MARK PARKER TYPE OF REQUEST...PRESCRIBED .TAG 20120409.CSNWR.01/CAE