FNUS74 KMOB 211304 FWSMOB SPOT FORECAST FOR CHICK CPT 405...US FOREST SERVICE NATIONAL WEATHER SERVICE MOBILE AL 804 AM CDT THU MAR 21 2013 FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON MARCH 21. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...SURFACE HIGH PRESSURE PASSING NORTH OF THE AREA TODAY WILL CONTINUE TO PUSH VERY DRY AIR SOUTH OVER THE FA TODAY. AN APPROACHING UPPER SYSTEM WILL SWITCH MIXING LAYER WINDS TO SOUTHEASTERLY LATER TODAY AND TONIGHT...THEN INCREASE THE CHANCE OF RAIN FRIDAY THROUGH SATURDAY. WESTERLY...THEN NORTHWESTERLY MIXING LAYER WINDS WILL MOVE IN OVER THE AREA SATURDAY NIGHT INTO SUNDAY...THEN REMAIN NORTHERLY THROUGH MOST OF THE COMING WEEK. FOG POTENTIAL AND OTHER REMARKS...NO FOG EXPECTED. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT). MAX TEMPERATURE.....AROUND 63. MIN HUMIDITY........23 PERCENT. WIND (20 FT)........NORTH WINDS AROUND 5 MPH EARLY IN THE MORNING BECOMING LIGHT...THEN BECOMING NORTHEAST 6 TO 7 MPH IN THE LATE MORNING AND EARLY AFTERNOON SHIFTING TO THE SOUTHEAST AROUND 6 MPH. MIXING HEIGHT.......200 FT AGL INCREASING TO 500 FT AGL EARLY IN THE MORNING...THEN INCREASING TO 2200 FT AGL LATE IN THE MORNING INCREASING TO 4400 FT AGL EARLY IN THE AFTERNOON DECREASING TO 4000 FT AGL. MIXING WINDS........NORTH 5 TO 9 MPH INCREASING TO 9 TO 10 MPH IN THE LATE MORNING AND AFTERNOON. DISPERSION INDEX....5 INCREASING TO 33 IN THE LATE MORNING AND AFTERNOON. LVORI...............4 DECREASING TO 1. TIME (CDT) 10 AM NOON 2 PM 4 PM SKY (%)...........46 46 61 61 WEATHER COV....... WEATHER TYPE......NONE NONE NONE NONE TEMP..............47 56 61 63 RH................41 28 24 24 20 FT WIND DIR....NE NE NE SE 20 FT WIND SPD....6 6 5 5 20 FT WIND GUST... MIX HGT (FT)......2200 2200 4400 4000 MIX HGT (M).......670 670 1340 1220 TRANSP WIND DIR...N N NW N TRANSP WIND SPD...10 10 9 9 TRANS SPD (M/S)...4 4 4 4 DISPERSION........29 29 36 34 LVORI.............2 2 1 1 CWR...............0 0 0 0 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. CHANCE OF RAIN SHOWERS EARLY IN THE MORNING. MIN TEMPERATURE.....AROUND 39. MAX HUMIDITY........85 PERCENT. WIND (20 FT)........EAST WINDS 5 TO 6 MPH. MIXING HEIGHT.......4000 FT AGL DECREASING TO 100 FT AGL. MIXING WINDS........NORTH AROUND 9 MPH SHIFTING TO THE EAST 8 TO 10 MPH. DISPERSION INDEX....34 DECREASING TO 6. LVORI...............1 INCREASING TO 4. TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%)...........61 66 66 66 81 96 WEATHER COV....... S CHC CHANCE WEATHER TYPE......NONE NONE NONE NONE RNSHWR RNSHWR TEMP..............60 53 46 43 42 42 RH................27 38 58 71 79 82 20 FT WIND DIR....SE SE SE SE E E 20 FT WIND SPD....5 5 4 4 4 5 20 FT WIND GUST... MIX HGT (FT)......4000 2200 400 400 300 100 MIX HGT (M).......1220 670 120 120 90 30 TRANSP WIND DIR...N E E E E E TRANSP WIND SPD...9 10 10 10 8 10 TRANS SPD (M/S)...4 4 4 4 4 4 DISPERSION........34 7 7 7 5 7 LVORI.............1 2 3 3 4 4 CWR...............0 10 10 10 20 30 .FRIDAY... SKY/WEATHER.........CLOUDY (90-100 PERCENT). CHANCE OF RAIN SHOWERS EARLY IN THE MORNING...THEN SLIGHT CHANCE OF RAIN SHOWERS IN THE MORNING. CHANCE OF THUNDERSTORMS AND RAIN SHOWERS IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 65. MIN HUMIDITY........47 PERCENT. WIND (20 FT)........EAST WINDS 5 TO 6 MPH INCREASING TO SOUTHEAST IN THE LATE MORNING AND AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON. MIXING HEIGHT.......100-200 FT AGL INCREASING TO 2800 FT AGL. MIXING WINDS........EAST AROUND 10 MPH INCREASING TO SOUTHEAST 17 TO 20 MPH. DISPERSION INDEX....7 INCREASING TO 43. LVORI...............4 DECREASING TO 1. TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%)...........96 90 95 95 99 94 WEATHER COV.......CHANCE S CHC S CHC S CHC CHANCE CHANCE WEATHER TYPE......RNSHWR RNSHWR RNSHWR RNSHWR TSTORM TSTORM TEMP..............41 44 52 58 63 65 RH................85 73 50 48 47 54 20 FT WIND DIR....E E E E SE SE 20 FT WIND SPD....5 5 9 9 9 9 20 FT WIND GUST... 16 18 18 17 18 MIX HGT (FT)......100 200 1300 1300 2500 2800 MIX HGT (M).......30 60 400 400 760 850 TRANSP WIND DIR...E E E E SE S TRANSP WIND SPD...10 17 20 20 18 20 TRANS SPD (M/S)...4 8 9 9 8 9 DISPERSION........7 19 30 30 40 45 LVORI.............4 3 2 2 1 1 CWR...............30 20 20 20 40 40 $$ FORECASTER...12 REQUESTED BY...DAVID BERENS TYPE OF REQUEST...PRESCRIBED .TAG 20130321.CHICK.01/MOB