FNUS73 KDMX 201512 FWSDMX SPOT FORECAST FOR PILOT KNOB...FWS NATIONAL WEATHER SERVICE DES MOINES IA 1012 AM CDT FRI APR 20 2012 FORECAST IS BASED ON IGNITION TIME OF 1300 CDT ON APRIL 20. 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... LOW PRESSURE OVER THE GREAT LAKES AREA WILL CONTINUE TO MOVE EAST PULLING LOW CLOUDS OVER THE EASTERN HALF OF IOWA WITH IT. IT WILL BE BREEZY TODAY WITH A NORTH WIND AT 15 TO 30 MPH. THE WIND WILL DIMINISH AFTER SUNSET. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). MAX TEMPERATURE.....AROUND 53. MIN HUMIDITY........43 PERCENT. EYE LEVEL WINDS.....NORTH WINDS 10 TO 16 MPH. MIXING HEIGHT.......1900 FT AGL INCREASING TO 6500 FT AGL. MIXING WINDS........NORTH 16 TO 25 MPH DECREASING TO AROUND 15 MPH LATE IN THE AFTERNOON. SMOKE DISPERSAL.....POOR TO GOOD (3500-39100 KNOT-FT) INCREASING TO EXCELLENT TO EXCELLENT (60700-108100 KNOT-FT) IN THE LATE MORNING AND AFTERNOON. WIND (20 FT)........NORTH WINDS 10 TO 16 MPH. TIME (CDT) 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........20 18 14 12 14 18 WEATHER COV..... WEATHER TYPE.... TSTM COV........ TEMP............50 51 52 53 53 52 RH..............48 46 44 43 43 44 20 FT WIND DIR..N N N N N N 20 FT WIND SPD..16 16 15 14 13 10 20 FT WIND GUST.25 20 20 20 15 15 EYE LVL WND DIR.N N N N N N EYE LVL WND SPD.11 11 11 10 9 7 EYE LVL WND GST.25 20 20 20 15 15 MIX HGT (KFT)...5.7 6.0 6.2 6.5 6.4 6.3 MIXNG WIND DIR..N N N N N N MIXNG WIND SPD..22 20 18 16 15 15 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT) THEN BECOMING MOSTLY CLOUDY (60-70 PERCENT). MIN TEMPERATURE.....AROUND 36. MAX HUMIDITY........82 PERCENT. EYE LEVEL WINDS.....NORTH WINDS 5 TO 9 MPH EARLY IN THE EVENING BECOMING LIGHT...THEN BECOMING SOUTH 5 TO 8 MPH AFTER MIDNIGHT. MIXING HEIGHT.......6200 FT AGL DECREASING TO 400 FT AGL. MIXING WINDS........NORTHEAST 7 TO 14 MPH SHIFTING TO THE EAST 2 TO 3 MPH LATE IN THE EVENING...THEN SHIFTING TO THE SOUTH 2 TO 8 MPH LATE IN THE EVENING. SMOKE DISPERSAL.....FAIR TO EXCELLENT (13700-74600 KNOT-FT) DECREASING TO POOR TO POOR (800-1700 KNOT-FT) IN THE LATE EVENING AND OVERNIGHT. WIND (20 FT)........NORTH WINDS 5 TO 9 MPH EARLY IN THE EVENING BECOMING LIGHT...THEN BECOMING SOUTH 5 TO 8 MPH AFTER MIDNIGHT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........20 26 28 30 50 62 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TSTM COV........ TEMP............52 51 45 39 37 36 RH..............44 46 55 70 75 79 20 FT WIND......N 9 NE 5 E 3 SE 5 SE 6 S 8 20 FT WIND GUST.10 5 10 EYE LEVEL WIND..N 6 NE 4 E 2 SE 4 SE 4 S 6 EYE LVL WND GST.10 5 10 MIX HGT (FT)....6200 2400 400 300 300 300 MIXNG WIND......N 14 NE 7 E 2 S 3 S 5 S 7 .SATURDAY... SKY/WEATHER.........CLOUDY (85-95 PERCENT). RAIN SHOWERS LIKELY. MAX TEMPERATURE.....AROUND 54. MIN HUMIDITY........57 PERCENT. EYE LEVEL WINDS.....SOUTHEAST WINDS 9 TO 16 MPH. MIXING HEIGHT.......1700 FT AGL INCREASING TO 5100 FT AGL. MIXING WINDS........SOUTH 9 TO 18 MPH INCREASING TO 17 TO 20 MPH LATE IN THE MORNING. SMOKE DISPERSAL.....POOR TO EXCELLENT (2000-63200 KNOT-FT) INCREASING TO GOOD TO EXCELLENT (49900-82700 KNOT-FT) IN THE AFTERNOON. WIND (20 FT)........SOUTHEAST WINDS 9 TO 16 MPH. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........76 88 99 91 WEATHER COV.....LIKELY LIKELY LIKELY LIKELY WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR TSTM COV........ TEMP............38 45 50 53 RH..............76 60 61 59 20 FT WIND......S 9G10 S 15G20 S 16G25 SE 14G20 EYE LEVEL WIND..S 6G10 S 11G20 S 11G25 SE 10G20 MIX HGT (FT)....300 1700 4800 5100 MIXNG WIND......S 9 S 17 S 20 S 18 $$ FORECASTER...BOKSA REQUESTED BY...TODD FREEMAN TYPE OF REQUEST...PRESCRIBED .TAG 20120420.PILOT.01/DMX