FNUS74 KSHV 172009 FWSSHV SPOT FORECAST FOR C-49...USDA FOREST SERVICE NATIONAL WEATHER SERVICE SHREVEPORT LA 209 PM CST THU FEB 17 2011 FORECAST IS BASED ON IGNITION TIME OF 1400 CST ON FEBRUARY 17. IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... THE FOUR STATE REGION WILL BE BETWEEN HIGH PRESSURE TO THE SOUTHEAST OF THE AREA AND LOW PRESSURE TO THE NORTHWEST PROVIDING A PRESSURE GRADIENT THAT WILL PRODUCE SOUTH TO SOUTH SOUTHWEST WINDS. THE WINDS WILL BE GUSTY AT TIMES UNTIL AROUND NIGHTFALL WHEN THE GRADIENT RELAXES. ON THIS MORNINGS SOUNDING THERE WAS A SHARP INVERSION WITH THE BASE AROUND 4200 FEET WHICH KEPT THE LOW LEVEL MOISTURE TRAPPED BELOW THIS LEVEL AND PREVENTED MOST OF THE CLOUD COVER FROM BREAKING UP. SMOKE WILL ALSO BE TRAPPED BELOW THIS INVERSION. NOTE...THIS SAME FEATURE WILL BE OCCURRING OVER THE NEXT COUPLE OF DAYS... AND LOOKS TO CHANGE WITH THE ARRIVAL OF A FRONTAL SYSTEM DURING THE EARLY PART OF NEXT WEEK. .REST OF TODAY... TIME (CST) 2PM 3PM 4PM 5PM SKY (%).........70 70 70 70 WEATHER COV..... WEATHER TYPE.... TEMP............73 74 74 73 RH..............56 54 55 58 20 FT WIND DIR..S S S S 20 FT WIND SPD..13 12 12 12 20 FT WIND GUST.15 MIXHGT MSL(KFT).3.8 4.2 4.2 4.2 MIXHGT MSL (KM).1.2 1.3 1.3 1.3 TRANSP WIND DIR.S S S S TRANSP WIND SPD.24 24 24 24 TRANS SPD (M/S).11 11 11 11 .TONIGHT... TIME (CST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM SKY (%).........70 70 70 70 70 70 80 80 80 80 80 80 WEATHER COV..... PTY PTY PTY WEATHER TYPE.... FOG FOG FOG TEMP............71 70 68 67 66 65 65 64 64 63 63 62 RH..............63 65 69 72 75 77 79 80 81 81 82 83 20 FT WIND DIR..S S S S S S S S S S S S 20 FT WIND SPD..9 9 9 10 10 10 9 9 9 7 7 7 20 FT WIND GUST.10 10 10 MIXHGT MSL(KFT).3.3 3.3 3.3 2.7 2.7 2.7 0.7 0.7 0.7 0.1 0.1 0.1 MIXHGT MSL (KM).1.0 1.0 1.0 0.8 0.8 0.8 0.2 0.2 0.2 0.1 0.1 0.1 TRANSP WIND DIR.S S S S S S S S S S S S TRANSP WIND SPD.24 24 24 24 24 24 0 0 0 0 0 0 TRANS SPD (M/S).11 11 11 11 11 11 0 0 0 0 0 0 .FRIDAY... TIME (CST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM SKY (%).........80 80 80 80 80 80 70 70 70 65 65 65 WEATHER COV..... WEATHER TYPE.... TEMP............62 62 63 65 67 69 71 72 73 74 74 73 RH..............83 85 84 80 74 68 64 61 59 58 59 60 20 FT WIND DIR..S S S S S S S S S SW SW SW 20 FT WIND SPD..7 7 7 8 8 8 8 8 8 6 6 6 20 FT WIND GUST. 10 10 10 10 MIXHGT MSL(KFT).1.6 1.6 1.6 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 MIXHGT MSL (KM).0.5 0.5 0.5 0.8 0.8 0.8 0.8 0.8 0.8 0.9 0.9 0.9 TRANSP WIND DIR.SW SW SW SW SW SW SW SW SW SW SW SW TRANSP WIND SPD.17 17 17 17 17 17 13 13 13 13 13 13 TRANS SPD (M/S).8 8 8 8 8 8 6 6 6 6 6 6 $$ FORECASTER...MURPHY REQUESTED BY...KEVIN RAFFO TYPE OF REQUEST...PRESCRIBED .TAG 20110217.C49__.01/SHV