FNUS73 KDMX 220946 FWSDMX SPOT FORECAST FOR PILOT KNOB...USFWS NATIONAL WEATHER SERVICE DES MOINES IA 446 AM CDT SUN APR 22 2012 FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON APRIL 22. 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... WINDS WILL BECOME GENERALLY NORTHERLY TODAY AT SPEEDS OF 10 TO 15 MPH WITH SOME HIGHER GUSTS. MOSTLY CLOUDY SKIES WILL LIMIT MIXING HEIGHTS FOR THE MOST PART...BUT SOME CLEARING IS POSSIBLE IN THE AFTERNOON WHEN RELATIVE HUMIDITY WILL BOTTOM OUT AT ROUGHLY 50 PERCENT. A FEW LIGHT SHOWERS ARE EXPECTED...MAINLY THIS MORNING. .TODAY... SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). ISOLATED RAIN SHOWERS. TEMPERATURE.........43 AT IGNITION...MAX 54. RH..................89 PERCENT AT IGNITION...MIN 52 PERCENT. EYE LEVEL WINDS.....NORTH WINDS 8 TO 10 MPH. MIXING HEIGHT.......2400 FT AGL INCREASING TO 7000 FT AGL. MIXING WINDS........NORTH 9 TO 12 MPH. SMOKE DISPERSAL.....POOR TO EXCELLENT (6900-62200 KNOT-FT) INCREASING TO EXCELLENT TO EXCELLENT (66700-69500 KNOT-FT) LATE IN THE AFTERNOON. WIND (20 FT)........WINDS NORTHEAST AT 9 MPH AT IGNITION...OTHERWISE NORTH WINDS 8 TO 10 MPH. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........90 86 83 81 79 74 70 65 60 WEATHER COV.....ISO ISO ISO ISO ISO ISO ISO ISO ISO WEATHER TYPE....RW RW RW RW RW RW RW RW RW TSTM COV........ TEMP............43 44 46 49 50 52 53 54 54 RH..............89 82 76 68 66 59 57 54 52 20 FT WIND DIR..NE NE N N N N N N N 20 FT WIND SPD..9 9 9 9 9 10 10 10 10 20 FT WIND GUST.10 10 10 10 10 15 15 EYE LVL WND DIR.NE NE N N N N N N N EYE LVL WND SPD.6 6 6 6 6 7 7 7 7 EYE LVL WND GST.10 10 10 10 10 15 15 MIX HGT (KFT)...2.4 3.6 4.9 6.1 6.4 6.7 7.0 6.7 6.4 MIXNG WIND DIR..E NE NE NE NE N N N N MIXNG WIND SPD..10 10 9 9 10 10 12 12 12 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT) THEN BECOMING PARTLY CLOUDY (30-40 PERCENT). ISOLATED RAIN SHOWERS EARLY IN THE EVENING. PATCHY FROST EARLY IN THE MORNING. TEMPERATURE.........MIN 34. RH..................MAX 100 PERCENT. EYE LEVEL WINDS.....NORTHWEST WINDS 5 TO 9 MPH. MIXING HEIGHT.......6100 FT AGL DECREASING TO 2200 FT AGL EARLY IN THE EVENING. MIXING WINDS........NORTHWEST 6 TO 12 MPH. SMOKE DISPERSAL.....FAIR TO EXCELLENT (16200-61300 KNOT-FT) DECREASING TO POOR TO POOR (1100-1500 KNOT-FT) IN THE LATE EVENING AND OVERNIGHT. WIND (20 FT)........NORTHWEST WINDS 5 TO 9 MPH. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........58 78 81 69 41 29 WEATHER COV.....ISOLTD ISOLTD PATCHY WEATHER TYPE....RNSHWR RNSHWR NONE NONE NONE FROST TSTM COV........ TEMP............53 48 43 41 37 35 RH..............54 65 79 85 96 100 20 FT WIND......N 9 N 8 N 6 N 6 NW 5 NW 5 20 FT WIND GUST.10 10 EYE LEVEL WIND..N 6 N 6 N 4 N 4 NW 4 NW 4 EYE LVL WND GST.10 10 MIX HGT (FT)....6100 2200 300 300 300 300 MIXNG WIND......N 12 N 8 NW 6 NW 6 NW 6 NW 6 .MONDAY... SKY/WEATHER.........SUNNY (20-30 PERCENT). TEMPERATURE.........MAX 63. RH..................MIN 39 PERCENT. EYE LEVEL WINDS.....NORTHWEST WINDS 6 TO 10 MPH. MIXING HEIGHT.......2000 FT AGL INCREASING TO 7100 FT AGL. MIXING WINDS........NORTHWEST 6 TO 13 MPH. SMOKE DISPERSAL.....POOR TO GOOD (1300-56900 KNOT-FT) INCREASING TO GOOD TO EXCELLENT (54000-78200 KNOT-FT) IN THE AFTERNOON. WIND (20 FT)........NORTHWEST WINDS 6 TO 10 MPH. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........24 19 28 27 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TSTM COV........ TEMP............35 49 57 62 RH..............96 61 45 39 20 FT WIND......NW 6 NW 8G10 NW 8G10 NW 10G15 EYE LEVEL WIND..NW 4G5 NW 6G10 NW 6G10 NW 7G15 MIX HGT (FT)....300 2900 6100 7100 MIXNG WIND......NW 6 N 13 N 13 NW 13 $$ FORECASTER...LEE REQUESTED BY...TODD FREEMAN TYPE OF REQUEST...PRESCRIBED .TAG 20120422.PILOT.01/DMX