FNUS73 KDMX 270549 FWSDMX SPOT FORECAST FOR CERA1...IOWA STATE UNIVERSITY NATIONAL WEATHER SERVICE DES MOINES IA 1249 AM CDT SAT JUN 27 2009 FORECAST IS BASED ON IGNITION TIME OF 1500 CDT ON JUNE 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... COLD FRONT WILL MOVE ACROSS CENTRAL IOWA TODAY WITH SOUTHERLY WINDS BECOMING WESTERLY DURING THE AFTERNOON. THERE WILL BE THE THREAT FOR THUNDERSTORMS BY MIDDAY AS WELL WITH THE THREAT DIMINISHING WITH THE PASSAGE OF THE COLD FRONT. .TODAY... SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE MORNING...THEN SHOWERS AND THUNDERSTORMS LIKELY IN THE AFTERNOON. TEMPERATURE.........87 AT IGNITION...MAX 88. RH..................65 PERCENT AT IGNITION...MIN 65 PERCENT. EYE LEVEL WINDS.....WEST WINDS 8 TO 12 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2100 FT AGL INCREASING TO 2300 FT AGL IN THE AFTERNOON. MIXING WINDS........SOUTH 12 TO 18 MPH SHIFTING TO THE WEST 10 TO 15 MPH EARLY IN THE AFTERNOON. SMOKE DISPERSAL.....GOOD (51000 KNOT-FT). TIME (CDT) 3PM 4PM 5PM 6PM SKY (%).........83 86 84 79 WEATHER COV.....LKY LKY LKY LKY WEATHER TYPE....RW RW RW RW TEMP............87 87 86 85 RH..............65 65 65 65 EYE LVL WND DIR.SW W W W EYE LVL WND SPD.9 9 8 8 EYE LVL WND GST.20 20 15 15 MIX HGT (KFT)...1.3 0.8 1.5 2.1 MIXNG WIND DIR..SW SW W W MIXNG WIND SPD..15 10 12 15 HAINES INDEX....4 4 4 3 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT) THEN BECOMING PARTLY CLOUDY (25-35 PERCENT). TEMPERATURE.........MIN 63. RH..................MAX 84 PERCENT. EYE LEVEL WINDS.....NORTHWEST WINDS 7 TO 9 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2800 FT AGL DECREASING TO 700 FT AGL IN THE LATE EVENING AND OVERNIGHT. MIXING WINDS........NORTHWEST 9 TO 17 MPH. SMOKE DISPERSAL.....GOOD (41700 KNOT-FT). TIME (CDT) 7 PM 10 PM 1 AM 4 AM SKY (%).........77 58 40 28 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............84 75 70 66 RH..............65 82 81 84 EYE LEVEL WIND..NW 7G15 NW 6G10 NW 6G10 NW 6G10 MIX HGT (FT)....2800 300 300 300 MIXNG WIND......NW 17 NW 10 NW 9 NW 12 HAINES INDEX....3 5 5 4 $$ FORECASTER...COGIL REQUESTED BY...RYAN HARR TYPE OF REQUEST...PRESCRIBED .TAG 20090627.CERA1.01/DMX