FNUS74 KMOB 271228 FWSMOB SPOT FORECAST FOR 402C...E.N.R. NATIONAL WEATHER SERVICE MOBILE AL 628 AM CST TUE JAN 27 2009 FORECAST IS BASED ON IGNITION TIME OF 0745 CST ON JANUARY 27. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A WARM AND MOIST AIRMASS WILL REMAIN IN PLACE ACROSS THE REGION TODAY AND TONIGHT WITH AREAS OF DENSE FOG DISSIPATING BY MID MORNING AND REFORMING AGAIN TONIGHT. A COLD FRONT WILL BEGIN MOVING EAST ACROSS THE AREA LATE TONIGHT AND THEN BE EAST OF THE REGION BY LATE WEDNESDAY. SCATTERED TO NUMEROUS SHOWERS AND A FEW ISOLATED THUNDERSTORMS WILL ACCOMPANY THE FRONTAL PASSAGE ON WEDNESDAYS. DRIER AND MUCH COOLER CONDITIONS WILL RETURN TO THE REGION IN THE WAKE OF THE FRONT DURING THE LATE PART OF THE WEEK AS HIGH PRESSURE BUILDS OVER THE AREA. .TODAY... TIME (CST) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM SKY (%).........56 56 56 51 51 51 WEATHER COV.....AREAS WEATHER TYPE....FOG NONE NONE NONE NONE NONE TEMP............55 63 71 73 73 69 RH..............97 79 62 58 60 71 20 FT WIND DIR..SE SE S S S S 20 FT WIND SPD..6 7 8 9 9 9 MIX HGT (FT)....2200 2600 3100 3300 3300 300 MIX HGT (M).....670 790 940 1010 1010 90 TRANSP WIND DIR.SE SE S S S S TRANSP WIND SPD.10 13 14 15 15 15 TRANS SPD (M/S).4 6 6 7 7 7 DISPERSION......21 27 33 37 37 7 LVORI...........5 3 1 1 1 3 CWR.............0 0 0 0 0 0 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). AREAS OF DENSE FOG IN THE EVENING...THEN PATCHY DENSE FOG AFTER MIDNIGHT. SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. MIN TEMPERATURE.....AROUND 58. MAX HUMIDITY........92 PERCENT. WIND (20 FT)........SOUTH WINDS 8 TO 10 MPH. MIXING HEIGHT.......300 FT AGL. MIXING WINDS........SOUTH 12 TO 15 MPH DECREASING TO 10 TO 14 MPH AFTER MIDNIGHT. DISPERSION INDEX....10. LVORI...............4 INCREASING TO 5 EARLY IN THE EVENING...THEN INCREASING TO 6 AFTER MIDNIGHT DECREASING TO 5 AFTER MIDNIGHT. .WEDNESDAY... SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). RAIN SHOWERS LIKELY IN THE MORNING. ISOLATED THUNDERSTORMS THROUGH THE DAY. RAIN SHOWERS IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 66. MIN HUMIDITY........66 PERCENT. WIND (20 FT)........SOUTHWEST WINDS 10 TO 14 MPH INCREASING TO 16 TO 17 MPH IN THE LATE MORNING AND EARLY AFTERNOON...THEN SHIFTING TO THE NORTHWEST 14 TO 16 MPH LATE IN THE AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS. MIXING HEIGHT.......300 FT AGL INCREASING TO 2600-2700 FT AGL UNTIL LATE AFTERNOON...THEN DECREASING TO 2400 FT AGL LATE IN THE AFTERNOON DECREASING TO 600 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........SOUTH 15 TO 18 MPH INCREASING TO SOUTHWEST 21 TO 25 MPH IN THE LATE MORNING AND EARLY AFTERNOON...THEN SHIFTING TO THE NORTHWEST 20 TO 23 MPH LATE IN THE AFTERNOON. DISPERSION INDEX....13 INCREASING TO 39 EARLY IN THE MORNING...THEN INCREASING TO 51 LATE IN THE MORNING INCREASING TO 54 EARLY IN THE AFTERNOON DECREASING TO 46 DECREASING TO 18 LATE IN THE AFTERNOON. LVORI...............5 DECREASING TO 4 EARLY IN THE MORNING...THEN DECREASING TO 3 LATE IN THE MORNING DECREASING TO 1 IN THE AFTERNOON INCREASING TO 3. $$ FORECASTER...MOB FORECASTER REQUESTED BY...JERRY COON TYPE OF REQUEST...PRESCRIBED .TAG 20090127.402C_.01/MOB