FNUS73 KDMX 271231 FWSDMX SPOT FORECAST FOR BISON SOUTH PART...USFWS NATIONAL WEATHER SERVICE DES MOINES IA 731 AM CDT MON JUL 27 2009 FORECAST IS BASED ON IGNITION TIME OF 1100 CDT ON JULY 27. 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... A COLD FRONT EXTENDING FORM NORTHERN MINNESOTA INTO SOUTHWEST NEBRASKA WILL MOVE INTO IOWA THIS AFTERNOON AND PASS SOUTHEAST OF IOWA TONIGHT. ISOLATED THUNDERSTORMS ARE POSSIBLE THIS MORNING...BECOMING MORE NUMEROUS THIS AFTERNOON AND EVENING. SOUTHWEST WINDS TODAY WILL SHIFT TO NORTHWEST WITH FRONTAL PASSAGE. .TODAY... SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). ISOLATED SHOWERS AND THUNDERSTORMS THIS MORNING SCATTERED THIS AFTERNOON. MAX TEMPERATURE.....AROUND 86. MIN HUMIDITY........51 PERCENT. EYE LEVEL WINDS.....LIGHT WINDS BECOMING WEST 5 TO 10 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2000 FT AGL INCREASING TO 4400 FT AGL LATE IN THE MORNING...THEN INCREASING TO 6600 FT AGL EARLY IN THE AFTERNOON DECREASING TO 4500 FT AGL LATE IN THE AFTERNOON DECREASING TO 2400 FT AGL. MIXING WINDS........SOUTHWEST 6 TO 14 MPH SHIFTING TO THE WEST 14 TO 21 MPH IN THE LATE MORNING AND AFTERNOON. SMOKE DISPERSAL.....GOOD (49000 KNOT-FT) INCREASING TO EXCELLENT (79800 KNOT-FT) IN THE AFTERNOON. TIME (CDT) 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........51 52 53 54 56 57 60 67 WEATHER COV..... SCT SCT SCT SCT SCT SCT WEATHER TYPE.... RW RW RW RW RW RW TEMP............78 81 83 84 85 85 85 84 RH..............60 56 53 53 53 55 53 51 EYE LVL WND DIR.SW SW SW SW SW SW W W EYE LVL WND SPD.6 7 7 8 8 8 8 7 EYE LVL WND GST.15 15 15 15 15 15 15 15 MIX HGT (KFT)...2.0 2.7 3.3 4.4 5.5 6.6 4.5 2.4 MIXNG WIND DIR..SW SW SW SW W W W W MIXNG WIND SPD..21 21 21 18 16 14 15 17 HAINES INDEX....5 5 5 5 4 4 4 4 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF SHOWERS AND THUNDERSTORMS. MIN TEMPERATURE.....AROUND 65. MAX HUMIDITY........87 PERCENT. EYE LEVEL WINDS.....NORTHWEST WINDS 5 TO 9 MPH BECOMING LIGHT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......300 FT AGL. MIXING WINDS........WEST 10 TO 18 MPH DECREASING TO 5 TO 6 MPH IN THE LATE EVENING AND OVERNIGHT. SMOKE DISPERSAL.....POOR (4000 KNOT-FT). TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........70 72 74 76 80 84 WEATHER COV.....CHANCE CHANCE CHANCE CHANCE CHANCE CHANCE WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............81 76 72 70 68 67 RH..............54 64 76 81 87 87 EYE LEVEL WIND..W 7 W 5 W 4 NW 4 NW 5 NW 4 EYE LEVEL WIND..15 10 5 5 5 MIX HGT (FT)....300 300 300 300 300 300 MIXNG WIND......W 18 W 10 W 5 NW 6 W 5 W 6 HAINES INDEX....4 4 4 4 5 5 .TUESDAY... SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). CHANCE OF SHOWERS AND THUNDERSTORMS. MAX TEMPERATURE.....AROUND 80. MIN HUMIDITY........54 PERCENT. EYE LEVEL WINDS.....LIGHT WINDS BECOMING NORTHWEST 5 TO 8 MPH...THEN BECOMING LIGHT LATE IN THE AFTERNOON. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1300 FT AGL INCREASING TO 6600 FT AGL. MIXING WINDS........NORTH 5 TO 12 MPH SHIFTING TO THE NORTHWEST 13 TO 16 MPH IN THE AFTERNOON. SMOKE DISPERSAL.....GOOD (33500 KNOT-FT) INCREASING TO EXCELLENT (85400 KNOT-FT) IN THE AFTERNOON. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........88 80 72 61 WEATHER COV.....CHANCE CHANCE CHANCE CHANCE WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR TEMP............67 73 78 79 RH..............87 71 58 54 EYE LEVEL WIND..NW 3G5 N 6G15 N 6G10 N 5G10 MIX HGT (FT)....300 1300 4300 6600 MIXNG WIND......NW 7 N 5 NW 15 NW 15 HAINES INDEX....4 4 5 4 $$ FORECASTER...SCHUMACHER REQUESTED BY...JAMES KRIZMAN TYPE OF REQUEST...PRESCRIBED .TAG 20090727.BISON.01/DMX