FNUS73 KDMX 151441 FWSDMX SPOT FORECAST FOR PLC SMALL UNIT...USFWS NATIONAL WEATHER SERVICE DES MOINES IA 941 AM CDT WED JUL 15 2009 FORECAST IS BASED ON IGNITION TIME OF 1100 CDT ON JULY 15. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. PLEASE REMEMBER TO SUBMIT A MID BURN OBSERVATION TO THE NATIONAL WEATHER SERVICE FOR EACH PRESCRIBED BURN. .DISCUSSION... WEAK HIGH PRESSURE WILL MOVE INTO THE ARE TODAY. A SECOND COLD FRONT WILL PUSH ACROSS THE AREA ON THURSDAY AND PRODUCE A CHANCE FOR THUNDERSTORMS MAINLY IN THE AFTERNOON. .TODAY... SKY/WEATHER.........SUNNY (20-30 PERCENT). MAX TEMPERATURE.....AROUND 82. MIN HUMIDITY........56 PERCENT. EYE LEVEL WINDS.....LIGHT WINDS BECOMING NORTHWEST 6 TO 12 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1800 FT AGL INCREASING TO 4200 FT AGL IN THE LATE MORNING AND AFTERNOON. MIXING WINDS........WEST 9 TO 18 MPH. SMOKE DISPERSAL.....GOOD (58700 KNOT-FT). TIME (CDT) 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........22 21 21 19 16 14 15 16 WEATHER COV..... WEATHER TYPE.... TEMP............77 79 80 80 81 81 81 80 RH..............69 62 60 60 56 56 56 56 EYE LVL WND DIR.NW NW NW NW NW NW NW NW EYE LVL WND SPD.10 10 9 8 8 7 6 6 EYE LVL WND GST.20 20 20 15 15 15 15 15 MIX HGT (KFT)...2.4 3.0 3.6 3.8 4.0 4.2 3.9 3.7 MIXNG WIND DIR..NW NW NW NW NW W W W MIXNG WIND SPD..18 17 16 16 16 16 15 14 HAINES INDEX....4 5 5 5 5 5 5 5 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT). MIN TEMPERATURE.....AROUND 62. MAX HUMIDITY........81 PERCENT. EYE LEVEL WINDS.....WEST WINDS 5 TO 7 MPH UNTIL EARLY MORNING BECOMING LIGHT...THEN BECOMING SOUTHWEST AROUND 5 MPH EARLY IN THE MORNING. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......3400 FT AGL DECREASING TO 1300 FT AGL IN THE EVENING. MIXING WINDS........NORTHWEST 5 TO 13 MPH SHIFTING TO THE NORTH AROUND 3 MPH EARLY IN THE MORNING. SMOKE DISPERSAL.....GOOD (37200 KNOT-FT). TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........16 20 21 22 15 17 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............79 73 69 67 65 64 RH..............58 68 73 75 81 81 EYE LEVEL WIND..NW 6 W 5 W 4 W 5 W 4 W 4 EYE LEVEL WIND..10 5 5 5 MIX HGT (FT)....3400 1300 300 300 300 300 MIXNG WIND......W 13 W 8 W 7 NW 7 NW 6 N 3 HAINES INDEX....5 5 5 5 5 5 .THURSDAY... SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT) THEN BECOMING PARTLY SUNNY (60-70 PERCENT). CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 83. MIN HUMIDITY........51 PERCENT. EYE LEVEL WINDS.....SOUTHWEST WINDS 5 TO 7 MPH SHIFTING TO THE NORTHWEST AROUND 6 MPH EARLY IN THE AFTERNOON. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1100 FT AGL INCREASING TO 5400 FT AGL. MIXING WINDS........NORTHEAST 1 TO 2 MPH SHIFTING TO THE SOUTH 1 TO 8 MPH EARLY IN THE MORNING...THEN INCREASING TO WEST 12 TO 17 MPH IN THE AFTERNOON. SMOKE DISPERSAL.....EXCELLENT (67700 KNOT-FT) INCREASING TO EXCELLENT (75300 KNOT-FT) LATE IN THE AFTERNOON. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........30 47 52 70 WEATHER COV..... CHANCE CHANCE WEATHER TYPE....NONE NONE RNSHWR RNSHWR TEMP............65 74 80 82 RH..............78 62 54 51 EYE LEVEL WIND..S 5 S 4G5 SW 6G10 NW 5G10 MIX HGT (FT)....300 1100 4600 5400 MIXNG WIND......N 2 SE 2 SW 12 W 16 HAINES INDEX....5 5 5 4 $$ FORECASTER...BOKSA REQUESTED BY...JAMES KRIZMAN TYPE OF REQUEST...PRESCRIBED .TAG 20090715.PLCSM.01/DMX