FNUS73 KDMX 091337 FWSDMX SPOT FORECAST FOR BIG CREEK WMA...IOWA DNR NATIONAL WEATHER SERVICE DES MOINES IA 837 AM CDT MON APR 9 2012 FORECAST IS BASED ON IGNITION TIME OF 1100 CDT ON APRIL 09. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. AN INITIAL OBSERVATION AT IGNITION AND A MID BURN OBSERVATION ARE REQUIRED... PLEASE RELAY THEM TO THE NATIONAL WEATHER SERVICE FOR EACH PRESCRIBED BURN. .DISCUSSION... SUNNY AND WINDY CONDITIONS ARE EXPECTED TODAY AS MIXING INCREASES THIS MORNING. STRONG NORTHWEST WINDS ARE EXPECTED BY THIS AFTERNOON WITH LOW HUMIDITY AS THE BOUNDARY LAYER MIXES OUT. .TODAY... SKY/WEATHER.........SUNNY (15-25 PERCENT). TEMPERATURE.........52 AT IGNITION...MAX 61. RH..................32 PERCENT AT IGNITION...MIN 22 PERCENT. EYE LEVEL WINDS.....NORTHWEST WINDS 7 TO 16 MPH INCREASING TO 17 TO 20 MPH LATE IN THE MORNING. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1700 FT AGL INCREASING TO 7500 FT AGL. MIXING WINDS........NORTHWEST 7 TO 16 MPH INCREASING TO 21 TO 29 MPH IN THE LATE MORNING AND AFTERNOON. SMOKE DISPERSAL.....POOR TO FAIR (1500-17300 KNOT-FT) INCREASING TO EXCELLENT TO EXCELLENT (119500-186900 KNOT-FT). WIND (20 FT)........WINDS NORTHWEST AT 16 MPH AT IGNITION...OTHERWISE NORTHWEST WINDS 7 TO 16 MPH INCREASING TO 17 TO 20 MPH LATE IN THE MORNING. TIME (CDT) 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........18 24 26 24 19 17 19 22 WEATHER COV..... WEATHER TYPE.... TSTM COV........ TEMP............52 54 57 58 60 61 59 58 RH..............32 30 25 25 23 22 24 25 20 FT WIND DIR..NW NW NW NW NW NW NW NW 20 FT WIND SPD..16 17 18 20 20 20 20 18 20 FT WIND GUST.20 25 25 25 30 30 25 25 EYE LVL WND DIR.NW NW NW NW NW NW NW NW EYE LVL WND SPD.11 12 13 14 14 14 14 13 EYE LVL WND GST.20 25 25 25 30 30 25 25 MIX HGT (KFT)...3.0 4.4 5.7 6.3 6.9 7.5 7.1 6.7 MIXNG WIND DIR..NW NW NW NW NW NW NW NW MIXNG WIND SPD..23 23 24 26 28 29 29 26 HAINES INDEX....5 4 4 4 4 4 4 4 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT). AREAS OF FROST AFTER MIDNIGHT. TEMPERATURE.........MIN 30. RH..................MAX 63 PERCENT. EYE LEVEL WINDS.....NORTHWEST WINDS 10 TO 17 MPH BECOMING LIGHT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......6400 FT AGL DECREASING TO 300 FT AGL. MIXING WINDS........NORTHWEST 17 TO 23 MPH BECOMING NORTH 5 TO 12 MPH EARLY IN THE EVENING. SMOKE DISPERSAL.....FAIR TO EXCELLENT (23100-127100 KNOT-FT) DECREASING TO POOR TO POOR (1100-1500 KNOT-FT) IN THE LATE EVENING AND OVERNIGHT. WIND (20 FT)........NORTHWEST WINDS 10 TO 17 MPH BECOMING LIGHT. TIME (CDT) 7 PM 10 PM 1 AM 4 AM SKY (%).........24 26 28 27 WEATHER COV..... AREAS WEATHER TYPE....NONE NONE NONE FROST TSTM COV........ TEMP............56 45 40 35 RH..............26 41 48 59 20 FT WIND......NW 17G25 N 7G15 N 6 N 3G5 EYE LEVEL WIND..NW 12G25 N 5G15 N 4G5 N 2G5 MIX HGT (FT)....6400 300 300 300 MIXNG WIND......NW 23 N 7 N 6 N 7 HAINES INDEX....4 4 4 4 $$ FORECASTER...COGIL REQUESTED BY...WILDLIFE TYPE OF REQUEST...PRESCRIBED .TAG 20120409.BIGCR.01/DMX