FNUS73 KDMX 201505 FWSDMX SPOT FORECAST FOR GLASS WMA...IA DNR NATIONAL WEATHER SERVICE DES MOINES IA 1005 AM CDT FRI APR 20 2012 FORECAST IS BASED ON IGNITION TIME OF 1200 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.........SUNNY (15-25 PERCENT). MAX TEMPERATURE.....AROUND 57. MIN HUMIDITY........38 PERCENT. EYE LEVEL WINDS.....NORTH WINDS 10 TO 14 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1500 FT AGL INCREASING TO 6800 FT AGL. MIXING WINDS........NORTH 13 TO 22 MPH DECREASING TO AROUND 12 MPH LATE IN THE AFTERNOON. SMOKE DISPERSAL.....POOR TO GOOD (6500-44300 KNOT-FT) INCREASING TO EXCELLENT TO EXCELLENT (63600-93100 KNOT-FT) IN THE LATE MORNING AND AFTERNOON. WIND (20 FT)........NORTH WINDS 10 TO 14 MPH. TIME (CDT) 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........15 13 14 15 16 21 30 WEATHER COV..... WEATHER TYPE.... TSTM COV........ TEMP............50 52 54 55 57 56 56 RH..............50 46 43 41 38 40 40 20 FT WIND DIR..N N N N N N N 20 FT WIND SPD..14 14 13 13 12 10 10 20 FT WIND GUST.20 20 15 15 15 15 EYE LVL WND DIR.N N N N N N N EYE LVL WND SPD.10 10 9 9 9 7 7 EYE LVL WND GST.20 20 15 15 15 15 MIX HGT (KFT)...4.8 5.5 5.9 6.4 6.8 6.6 6.3 MIXNG WIND DIR..N N N N N N N MIXNG WIND SPD..21 20 17 16 14 13 12 HAINES INDEX....4 5 5 5 5 5 5 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING MOSTLY CLOUDY (65-75 PERCENT). MIN TEMPERATURE.....AROUND 38. MAX HUMIDITY........85 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 5 TO 9 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......6000 FT AGL DECREASING TO 2200 FT AGL EARLY IN THE EVENING. MIXING WINDS........SOUTH 3 TO 10 MPH. SMOKE DISPERSAL.....POOR TO GOOD (10000-54000 KNOT-FT) DECREASING TO POOR TO POOR (700-1700 KNOT-FT) IN THE LATE EVENING AND OVERNIGHT. WIND (20 FT)........SOUTH WINDS 5 TO 9 MPH. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........35 31 37 41 58 70 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TSTM COV........ TEMP............55 51 44 39 40 39 RH..............41 50 65 79 76 79 20 FT WIND......N 9 E 6 E 5 SE 6 S 7 S 7 20 FT WIND GUST.10 EYE LEVEL WIND..N 6 E 4 E 4 SE 4 S 5 S 5 EYE LVL WND GST.10 MIX HGT (FT)....6000 2200 300 300 300 300 MIXNG WIND......N 10 NE 6 E 3 SE 5 S 6 S 7 HAINES INDEX....5 5 4 5 5 5 .SATURDAY... SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). CHANCE OF RAIN SHOWERS IN THE MORNING. MAX TEMPERATURE.....AROUND 63. MIN HUMIDITY........44 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 8 TO 15 MPH SHIFTING TO THE NORTHWEST 15 TO 20 MPH IN THE LATE MORNING AND AFTERNOON. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1900 FT AGL INCREASING TO 7400 FT AGL. MIXING WINDS........SOUTH 9 TO 17 MPH SHIFTING TO THE NORTHWEST 15 TO 22 MPH IN THE LATE MORNING AND AFTERNOON. SMOKE DISPERSAL.....POOR TO FAIR (2000-28500 KNOT-FT) INCREASING TO GOOD TO EXCELLENT (49000-121800 KNOT-FT) IN THE LATE MORNING AND AFTERNOON. WIND (20 FT)........SOUTH WINDS 8 TO 15 MPH SHIFTING TO THE NORTHWEST 15 TO 20 MPH IN THE LATE MORNING AND AFTERNOON. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........90 81 85 75 WEATHER COV.....CHANCE CHANCE S CHC S CHC WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR TSTM COV........ TEMP............40 50 58 62 RH..............79 58 49 44 20 FT WIND......S 8G10 S 18G25 SW 18G25 W 16G25 EYE LEVEL WIND..S 6G10 S 13G25 SW 13G25 W 11G25 MIX HGT (FT)....300 2700 5700 7400 MIXNG WIND......S 9 S 21 S 21 NW 15 HAINES INDEX....5 3 5 5 $$ FORECASTER...BOKSA REQUESTED BY...PETE HILDRETH TYPE OF REQUEST...PRESCRIBED .TAG 20120420.GLASS.01/DMX