FNUS74 KMOB 211524 FWSMOB SPOT FORECAST FOR CRIPPLED CHINOOK...USDA FOREST SERVICE NATIONAL WEATHER SERVICE MOBILE AL 1024 AM CDT THU OCT 21 2010 FORECAST IS BASED ON REQUEST TIME OF 1011 CDT ON OCTOBER 21. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...DRIER AIR FLOWS INTO THE REGION IN THE WAKE OF A COLD FRONT... WITH DRY AIR PERSISTING OVER THE AREA THROUGH FRIDAY. A LIGHT ONSHORE FLOW RESUMES ON SATURDAY AND BEGINS TO SEND GULF MOISTURE BACK INTO THE REGION. AFTERNOON RELATIVE HUMIDITIES DROPPING TO NEAR 20 PERCENT TODAY AND NEAR 25 PERCENT ACROSS MUCH OF THE AREA ON FRIDAY. AFTERNOON RELATIVE HUMIDITIES ARE EXPECTED TO REMAIN ABOVE CRITICAL LEVELS ON SATURDAY. .TODAY... SKY/WEATHER.........SUNNY (0-10 PERCENT). MAX TEMPERATURE.....AROUND 85. MIN HUMIDITY........21 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING NORTH AROUND 5 MPH EARLY IN THE AFTERNOON...THEN BECOMING LIGHT LATE IN THE AFTERNOON. MIXING HEIGHT.......100-200 FT AGL INCREASING TO 5900 FT AGL. MIXING WINDS........NORTH 4 TO 7 MPH. DISPERSION INDEX....4 INCREASING TO 15 LATE IN THE MORNING...THEN INCREASING TO 25 EARLY IN THE AFTERNOON INCREASING TO 40 EARLY IN THE AFTERNOON DECREASING TO 31. LVORI...............7 INCREASING TO 8 EARLY IN THE MORNING...THEN DECREASING TO 4 EARLY IN THE MORNING DECREASING TO 2 LATE IN THE MORNING DECREASING TO 1. TIME (CDT) 10 AM NOON 2 PM 4 PM SKY (%)...........1 1 10 10 WEATHER COV....... WEATHER TYPE......NONE NONE NONE NONE TEMP..............69 78 83 84 RH................49 30 23 21 20 FT WIND DIR....N N N N 20 FT WIND SPD....3 4 4 3 MIX HGT (FT)......1100 3500 5900 5900 MIX HGT (M).......340 1070 1800 1800 TRANSP WIND DIR...N N N N TRANSP WIND SPD...5 6 6 5 TRANS SPD (M/S)...2 3 3 2 DISPERSION........8 25 38 31 LVORI.............2 1 1 1 CWR...............0 0 0 0 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT). MIN TEMPERATURE.....AROUND 48. MAX HUMIDITY........92 PERCENT. WIND (20 FT)........LIGHT WINDS. MIXING HEIGHT.......4900 FT AGL DECREASING TO 100 FT AGL. MIXING WINDS........NORTHEAST 2 TO 3 MPH. DISPERSION INDEX....20 DECREASING TO 1. LVORI...............2 INCREASING TO 6. TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%)...........10 10 10 10 15 15 WEATHER COV....... WEATHER TYPE......NONE NONE NONE NONE NONE NONE TEMP..............75 63 55 53 51 50 RH................33 54 73 82 85 86 20 FT WIND DIR....N N N NE NE NE 20 FT WIND SPD....2 2 2 2 2 2 MIX HGT (FT)......4900 1100 100 100 100 100 MIX HGT (M).......1490 340 30 30 30 30 TRANSP WIND DIR...N N N NE NE NE TRANSP WIND SPD...3 2 2 2 2 2 TRANS SPD (M/S)...1 1 1 1 1 1 DISPERSION........20 1 1 1 1 1 LVORI.............2 2 4 5 6 6 CWR...............0 0 0 0 0 0 .FRIDAY... SKY/WEATHER.........SUNNY (10-20 PERCENT). MAX TEMPERATURE.....AROUND 84. MIN HUMIDITY........24 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 5 TO 6 MPH IN THE LATE MORNING AND AFTERNOON...THEN BECOMING LIGHT LATE IN THE AFTERNOON. MIXING HEIGHT.......100 FT AGL INCREASING TO 6100 FT AGL. MIXING WINDS........EAST 4 TO 8 MPH SHIFTING TO THE SOUTHEAST 6 TO 9 MPH IN THE AFTERNOON. DISPERSION INDEX....2 INCREASING TO 21 LATE IN THE MORNING...THEN INCREASING TO 37 EARLY IN THE AFTERNOON INCREASING TO 57 EARLY IN THE AFTERNOON DECREASING TO 43. LVORI...............6 INCREASING TO 7 EARLY IN THE MORNING...THEN DECREASING TO 4 EARLY IN THE MORNING DECREASING TO 2 LATE IN THE MORNING DECREASING TO 1. TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%)...........15 15 15 15 19 19 WEATHER COV....... WEATHER TYPE......NONE NONE NONE NONE NONE NONE TEMP..............49 53 69 78 83 83 RH................92 77 44 32 26 24 20 FT WIND DIR....NE E E E E SE 20 FT WIND SPD....2 3 4 5 5 4 MIX HGT (FT)......100 100 100 3700 6100 6100 MIX HGT (M).......30 30 30 1130 1860 1860 TRANSP WIND DIR...NE E E E E SE TRANSP WIND SPD...2 5 7 8 8 7 TRANS SPD (M/S)...1 2 3 4 4 3 DISPERSION........1 1 2 37 55 47 LVORI.............6 4 2 1 1 1 CWR...............0 0 0 0 0 0 $$ FORECASTER...MOB FORECASTER REQUESTED BY...BUZZ WILLIAMS TYPE OF REQUEST...WILDFIRE .TAG 20101021.CRIPP.01/MOB