FNUS74 KMOB 261426 FWSMOB SPOT FORECAST FOR COMPARTMENT 51...U.S. FOREST SERVICE NATIONAL WEATHER SERVICE MOBILE AL 826 AM CST THU FEB 26 2009 FORECAST IS BASED ON IGNITION TIME OF 0900 CST ON FEBRUARY 26. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...UNDER INFLUENCE OF SOUTHERLY FLOW...DAYTIME HUMIDITY IS FORECAST TO REMAIN WELL ABOVE CRITICAL LEVELS THE NEXT TWO DAYS. PATCHY FOG FORECAST TO FORM OVERNIGHT IN SOME OF THE PROTECTED AREAS. WHERE WINDS CAN BE LOWER. CONSIDERING THIS...COMBINED WITH ANY LINGERING SMOKE INTO THE EVENING FROM PRESCRIBED BURNING ACTIVITIES LATE IN THE AFTERNOON...WILL LIKELY CAUSE LOCALIZED AND VERY POOR VISIBILITIES TONIGHT. A CHANCE OF THUNDERSTORMS ON FRIDAY. .TODAY... TIME (CST) 9 AM 11 AM 1 PM 3 PM 5 PM SKY (%).........55 55 51 49 49 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE TEMP............61 69 72 73 70 RH..............75 54 47 45 50 20 FT WIND DIR..SE S S S S 20 FT WIND SPD..6 10 14 12 9 MIX HGT (FT)....3000 4800 5700 5700 4200 MIX HGT (M).....910 1460 1740 1740 1280 TRANSP WIND DIR.SE S S S S TRANSP WIND SPD.15 18 20 21 21 TRANS SPD (M/S).7 8 9 9 9 DISPERSION......37 54 64 68 81 LVORI...........3 1 1 1 1 CWR.............0 0 0 0 0 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT) THEN BECOMING MOSTLY CLOUDY (55-65 PERCENT). PATCHY FOG AFTER MIDNIGHT. MIN TEMPERATURE.....AROUND 52. MAX HUMIDITY........100 PERCENT. WIND (20 FT)........SOUTHEAST WINDS 5 TO 9 MPH UNTIL EARLY MORNING BECOMING LIGHT. MIXING HEIGHT.......3400 FT AGL DECREASING TO 600 FT AGL. MIXING WINDS........SOUTH 17 TO 21 MPH DECREASING TO 13 TO 16 MPH AFTER MIDNIGHT. DISPERSION INDEX....73 DECREASING TO 13. LVORI...............1 INCREASING TO 6. TIME (CST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........48 48 48 47 47 59 WEATHER COV..... PATCHY PATCHY PATCHY WEATHER TYPE....NONE NONE NONE FOG FOG FOG TEMP............67 59 55 54 54 54 RH..............54 74 87 87 89 92 20 FT WIND DIR..S S S S SE SE 20 FT WIND SPD..8 7 7 5 5 4 MIX HGT (FT)....3400 1500 600 600 600 600 MIX HGT (M).....1040 460 180 180 180 180 TRANSP WIND DIR.S S S S S S TRANSP WIND SPD.21 20 18 17 15 13 TRANS SPD (M/S).9 9 8 8 7 6 DISPERSION......73 23 17 11 10 9 LVORI...........1 3 4 5 5 6 CWR.............0 0 0 0 0 0 .FRIDAY... SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). PATCHY FOG EARLY IN THE MORNING. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 73. MIN HUMIDITY........59 PERCENT. WIND (20 FT)........SOUTH WINDS 5 TO 9 MPH INCREASING TO 9 TO 12 MPH LATE IN THE MORNING. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON. MIXING HEIGHT.......600 FT AGL INCREASING TO 1200 FT AGL EARLY IN THE MORNING...THEN INCREASING TO 1900 FT AGL EARLY IN THE MORNING INCREASING TO 2500 FT AGL LATE IN THE MORNING INCREASING TO 3200 FT AGL INCREASING TO 3800 FT AGL LATE IN THE MORNING INCREASING TO 4500 FT AGL DECREASING TO 4000 FT AGL LATE IN THE AFTERNOON DECREASING TO 3400 FT AGL. MIXING WINDS........SOUTH 13 TO 17 MPH INCREASING TO AROUND 25 MPH. DISPERSION INDEX....9 INCREASING TO 70. LVORI...............6 DECREASING TO 1. $$ FORECASTER...MOB FORECASTER REQUESTED BY...TRACY SIMMONS TYPE OF REQUEST...PRESCRIBED .TAG 20090226.COMPA.01/MOB