FNUS74 KMOB 211305 FWSMOB SPOT FORECAST FOR CPT 447 448...U.S. FOREST SERVICE NATIONAL WEATHER SERVICE MOBILE AL 705 AM CST SUN FEB 21 2010 FORECAST IS BASED ON IGNITION TIME OF 1030 CST ON FEBRUARY 21. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...AS A SYSTEM OVER THE SOUTHERN PLAINS MOVES TOWARDS THE AREA TODAY INTO TONIGHT...MOISTURE LEVELS WILL BE ON THE INCREASE AS SOUTHERLY FLOW BECOMES RE-ESTABLISHED. THE NORTHEASTERN QUARTER OF THE AREA MAY SEE RELATIVE HUMIDITY VALUES DROPPING BELOW 35 PERCENT...BUT MOST OF THE AREA IS EXPECTED TO REMAIN ABOVE 35 PERCENT. LIGHT FOG WILL DEVELOP THIS EVENING AND PERSIST INTO MONDAY MORNING. A ROUND OF RAIN WILL COME TO THE AREA TONIGHT INTO MONDAY AHEAD AND WITH A WEAK FRONT MOVING OVER THE AREA MONDAY. A DRIER AIR MASS WILL MOVE OVER THE AREA MONDAY NIGHT INTO TUESDAY...WITH AFTERNOON RELATIVE HUMIDITY VALUES FALLING INTO THE 30 TO 35 PERCENT RANGE UNDER LIGHT NORTHERLY FLOW. FOG DEVELOPMENT IS NOT EXPECTED MONDAY NIGHT. A SYSTEM PASSING OVER THE AREA LATE TUESDAY NIGHT AND WEDNESDAY WILL BRING ANOTHER ROUND OF MOISTURE TO THE AREA...WITH THE BEST CHANCE BEING CLOSER TO THE COAST. WITH THE MIXING LAYER FLOW GENERALLY NORTHERLY BEFORE AND DURING THIS ROUND OF RAIN...AMOUNTS WILL BE LIMITED. A COLDER...DRY AIR MASS WILL MOVE OVER THE AREA BEHIND THIS SYSTEM FOR THURSDAY AND FRIDAY. .TODAY... TIME (CST) 10 AM NOON 2 PM 4 PM SKY (%)...........59 88 88 88 WEATHER COV.......S CHC CHANCE CHANCE CHANCE WEATHER TYPE......RNSHWR RNSHWR RNSHWR RNSHWR TEMP..............52 60 63 65 RH................64 55 56 56 20 FT WIND DIR....SE SE SE SE 20 FT WIND SPD....5 7 7 6 MIX HGT (FT)......1600 2400 2200 1900 MIX HGT (M).......490 730 670 580 TRANSP WIND DIR...SE E E SE TRANSP WIND SPD...16 12 12 12 TRANS SPD (M/S)...7 5 5 5 DISPERSION........33 25 24 22 LVORI.............3 2 2 2 CWR...............20 40 40 40 .TONIGHT... TIME (CST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%)...........90 90 90 90 90 90 WEATHER COV.......LIKELY LIKELY LIKELY DEFNTE DEFNTE DEFNTE WEATHER TYPE......RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP..............60 57 56 55 53 51 RH................72 84 95 98 100 100 20 FT WIND DIR....SE SE SSE SSE S SW 20 FT WIND SPD....6 6 5 5 5 4 MIX HGT (FT)......1300 700 400 300 200 100 MIX HGT (M).......400 210 120 90 60 30 TRANSP WIND DIR...SE S S S SW SW TRANSP WIND SPD...12 12 10 9 9 8 TRANS SPD (M/S)...5 5 4 4 4 4 DISPERSION........18 10 7 7 6 5 LVORI.............3 4 6 8 8 9 CWR...............60 60 60 90 90 90 .MONDAY... TIME (CST) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%)...........73 73 73 65 65 65 WEATHER COV.......CHANCE CHANCE CHANCE S CHC S CHC S CHC WEATHER TYPE......RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP..............50 51 57 58 60 60 RH................100 100 84 69 59 58 20 FT WIND DIR....W W NW NW NW NW 20 FT WIND SPD....3 4 5 5 5 4 MIX HGT (FT)......100 900 1600 2400 2700 2700 MIX HGT (M).......30 270 490 730 820 820 TRANSP WIND DIR...W W W NW NW NW TRANSP WIND SPD...7 12 14 9 9 8 TRANS SPD (M/S)...3 5 6 4 4 4 DISPERSION........3 13 23 20 20 19 LVORI.............9 5 4 2 2 2 CWR...............40 40 40 20 20 20 $$ FORECASTER...MOB FORECASTER REQUESTED BY...DAVID BERENS TYPE OF REQUEST...PRESCRIBED .TAG 20100221.CPT44.01/MOB