FNUS73 KDMX 151433 FWSDMX SPOT FORECAST FOR BIG CREEK-ROTHWELL...IOWA DNR NATIONAL WEATHER SERVICE DES MOINES IA 933 AM CDT THU APR 15 2010 FORECAST IS BASED ON IGNITION TIME OF 1200 CDT ON APRIL 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... .TODAY... SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). ISOLATED SHOWERS AND THUNDERSTORMS LATE IN THE MORNING. SHOWERS AND THUNDERSTORMS LIKELY IN THE AFTERNOON. TEMPERATURE.........73 AT IGNITION...MAX 77. MIN HUMIDITY........49 PERCENT AT IGNITION...MIN 45 PERCENT. WIND (EYE LEVEL)....SOUTHWEST WINDS 7 TO 14 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2600 FT AGL INCREASING TO 5100 FT AGL LATE IN THE MORNING...THEN INCREASING TO 6600 FT AGL EARLY IN THE AFTERNOON DECREASING TO 2700 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........SOUTHWEST 10 TO 18 MPH INCREASING TO 14 TO 23 MPH IN THE LATE MORNING AND AFTERNOON. SMOKE DISPERSAL.....GOOD (69700 KNOT-FT) INCREASING TO EXCELLENT (126000 KNOT-FT). TIME (CDT) 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........73 74 75 78 80 82 84 WEATHER COV.....ISO NUM NUM NUM LKY LKY LKY WEATHER TYPE....RW RW RW RW RW RW RW TEMP............73 74 75 76 76 75 74 RH..............49 50 46 45 45 45 46 EYE LVL WND DIR.SW SW SW SW SW SW SW EYE LVL WND SPD.10 10 11 11 11 10 8 EYE LVL WND GST.25 25 25 30 30 25 20 MIX HGT (KFT)...3.4 4.3 5.1 5.8 6.6 4.7 2.7 MIXNG WIND DIR..SW SW SW SW SW SW SW MIXNG WIND SPD..23 23 23 23 22 18 14 HAINES INDEX....4 4 4 4 4 4 4 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT) THEN BECOMING PARTLY CLOUDY (40-50 PERCENT). CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING. MIN TEMPERATURE.....48. WIND (EYE LEVEL)....NORTHWEST WINDS 8 TO 10 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......800 FT AGL. MIXING WINDS........NORTHWEST 6 TO 14 MPH. SMOKE DISPERSAL.....POOR (6300 KNOT-FT). TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........85 82 77 74 62 47 WEATHER COV.....CHANCE CHANCE CHANCE WEATHER TYPE....RNSHWR RNSHWR RNSHWR NONE NONE NONE TEMP............70 63 59 56 54 52 EYE LEVEL WIND..SW 7 W 7 NW 8 N 8 N 7 NW 6 EYE LEVEL WIND..15 15 15 15 15 15 MIX HGT (FT)....800 400 300 300 300 300 MIXNG WIND......SW 9 W 6 W 8 NW 14 NW 9 NW 9 HAINES INDEX....4 3 3 3 4 4 $$ FORECASTER...LEE REQUESTED BY...SAYLORVILLE UNIT TYPE OF REQUEST...PRESCRIBED .TAG 20100415.BIGCR.01/DMX