FNUS73 KDMX 101032 FWSDMX SPOT FORECAST FOR THORN VALLEY SAVANNA...U.S. FISH AND WILDLIFE SERVICE NATIONAL WEATHER SERVICE DES MOINES IA 432 AM CST WED NOV 10 2010 FORECAST IS BASED ON IGNITION TIME OF 1000 CST ON NOVEMBER 10. 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 SOUTH WIND WILL INCREASE THROUGH THE MORNING TO 15 TO 25 MPH. A LOW PRESSURE SYSTEM AND COLD FRONT WILL PUSH ACROSS THE AREA LATER THIS AFTERNOON AND EVENING. SHOWERS OVER EASTERN NEBRASKA AND KANSAS WILL MOVE INTO WESTERN IOWA LATER THIS MORNING AND INTO CENTRAL IOWA THIS AFTERNOON. ISOLATED THUNDERSTORMS ARE POSSIBLE ALONG THE FRONTAL BOUNDARY LATE THIS AFTERNOON AND EARLY EVENING. .TODAY... SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). ISOLATED SHOWERS AND THUNDERSTORMS LATE IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 68. MIN HUMIDITY........54 PERCENT. EYE LEVEL WINDS.....SOUTHWEST WINDS 9 TO 14 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2100 FT AGL INCREASING TO 4700 FT AGL IN THE AFTERNOON...THEN DECREASING TO 1700 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........SOUTH 12 TO 20 MPH INCREASING TO 22 TO 29 MPH LATE IN THE MORNING...THEN DECREASING TO AROUND 17 MPH LATE IN THE AFTERNOON. SMOKE DISPERSAL.....MARGINAL (32100 KNOT-FT) INCREASING TO EXCELLENT (117500 KNOT-FT) IN THE AFTERNOON. TIME (CST) 10 AM 1 PM 4 PM SKY (%).........62 84 83 WEATHER COV..... ISOLTD WEATHER TYPE....NONE NONE RNSHWR TEMP............59 64 64 RH..............69 60 60 EYE LEVEL WIND..S 10G20 S 11G25 S 10G25 MIX HGT (FT)....1200 3000 3200 MIXNG WIND......S 20 S 26 S 24 HAINES INDEX....3 3 4 $$ FORECASTER...BOKSA REQUESTED BY...JIM KRIZMAN TYPE OF REQUEST...PRESCRIBED .TAG 20101110.THORN.01/DMX