FNUS74 KMOB 131307 FWSMOB SPOT FORECAST FOR DESOTO 1357...USDA FOREST SERVICE NATIONAL WEATHER SERVICE MOBILE AL 807 AM CDT MON MAY 13 2013 FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON MAY 13. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A DRIER AIRMASS WILL SETTLE OVER THE REGION TODAY AS HIGH PRESSURE BUILDS TOWARD THE NORTHERN GULF OF MEXICO. RELATIVE HUMIDITY VALUES ARE EXPECTED TO FALL TO NEAR 25 PERCENT ACROSS THE BURN AREA THIS AFTERNOON. A MODERATE NORTHERLY MIXING WIND AND A HIGH MIXING HEIGHT WILL CREATE A NEAR EXCELLENT DISPERSION VALUE UP TO 94. FOG POTENTIAL AND OTHER REMARKS...FOG IS EXPECTED TONIGHT IN RIVER VALLEYS...LOW LYING AND OTHER FOG PRONE AREAS WITH VISIBILITIES REDUCED TO THREE MILES. .TODAY... SKY/WEATHER.........SUNNY (5-15 PERCENT). MAX TEMPERATURE.....AROUND 81. MIN HUMIDITY........25 PERCENT. WIND (20 FT)........NORTHEAST 6 TO 8 MPH. MIXING HEIGHT.......INCREASING TO 6200 FT AGL. MIXING WINDS........NORTHEAST 13 TO 16 MPH. DISPERSION INDEX....INCREASING TO 94. LVORI...............DECREASING TO 1. TIME (CDT) 10 AM NOON 2 PM 4 PM SKY (%)...........4 4 6 6 WEATHER COV....... WEATHER TYPE......NONE NONE NONE NONE TEMP..............69 76 80 80 RH................39 28 25 26 20 FT WIND DIR....NE NE NE SE 20 FT WIND SPD....8 8 7 6 20 FT WIND GUST... MIX HGT (FT)......4100 4100 6200 6200 MIX HGT (M).......1250 1250 1890 1890 TRANSP WIND DIR...NE NE N N TRANSP WIND SPD...16 16 14 13 TRANS SPD (M/S)...7 7 6 6 DISPERSION........78 78 94 79 LVORI.............1 1 1 1 CWR...............0 0 0 0 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (0-10 PERCENT). MIN TEMPERATURE.....AROUND 50. MAX HUMIDITY........93 PERCENT. WIND (20 FT)........LIGHT WINDS. MIXING HEIGHT.......DECREASING TO 100 FT AGL. MIXING WINDS........NORTH AROUND 13 MPH BECOMING CALM. DISPERSION INDEX....DECREASING TO 1. LVORI...............INCREASING TO 8. TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%)...........6 5 5 5 5 5 WEATHER COV....... WEATHER TYPE......NONE NONE NONE NONE NONE NONE TEMP..............77 70 60 56 53 52 RH................32 45 68 81 87 90 20 FT WIND DIR....SE S SW SW SW W 20 FT WIND SPD....3 2 1 1 0 0 20 FT WIND GUST... MIX HGT (FT)......6200 100 100 100 100 100 MIX HGT (M).......1890 30 30 30 30 30 TRANSP WIND DIR...N SE SW SW SW W TRANSP WIND SPD...13 2 1 1 0 0 TRANS SPD (M/S)...6 1 0 0 0 0 DISPERSION........79 1 1 1 0 0 LVORI.............1 2 4 4 6 8 CWR...............0 0 0 0 0 0 .TUESDAY... SKY/WEATHER.........SUNNY (0-10 PERCENT). MAX TEMPERATURE.....AROUND 84. MIN HUMIDITY........32 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 4 TO 7 MPH IN THE AFTERNOON. MIXING HEIGHT.......100 FT AGL INCREASING TO 5500 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........AROUND 0 MPH SHIFTING TO THE SOUTH AROUND 3 MPH LATE IN THE MORNING...THEN SHIFTING TO THE SOUTHWEST 6 MPH IN THE AFTERNOON. DISPERSION INDEX....0 INCREASING TO 34. LVORI...............8 DECREASING TO 1. TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%)...........5 7 7 7 7 7 WEATHER COV....... WEATHER TYPE......NONE NONE NONE NONE NONE NONE TEMP..............51 58 76 81 83 83 RH................93 73 41 33 32 34 20 FT WIND DIR....W NW SE SE S S 20 FT WIND SPD....0 0 4 4 5 6 20 FT WIND GUST... MIX HGT (FT)......100 200 4600 4600 6400 5500 MIX HGT (M).......30 60 1400 1400 1950 1680 TRANSP WIND DIR...W NW S S SW SW TRANSP WIND SPD...0 0 3 3 5 6 TRANS SPD (M/S)...0 0 1 1 2 3 DISPERSION........0 0 19 19 33 34 LVORI.............8 4 2 2 1 1 CWR...............0 0 0 0 0 0 $$ FORECASTER...22 REQUESTED BY...JAY BOYKIN TYPE OF REQUEST...PRESCRIBED .TAG 20130513.DESOT.01/MOB