FNUS73 KDMX 261212 FWSDMX SPOT FORECAST FOR GLASS WMA...IA DNR NATIONAL WEATHER SERVICE DES MOINES IA 712 AM CDT THU APR 26 2012 FORECAST IS BASED ON IGNITION TIME OF 1100 CDT ON APRIL 26. 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... NORTHEAST WINDS WILL BE BRISK TODAY WITH MINIMUM RELATIVE HUMIDITY BETWEEN 35 AND 40 PERCENT. AS HIGH PRESSURE MOVES IN LATER THIS AFTERNOON WINDS WILL BEGIN TO DIMINISH TOWARD LATE AFTERNOON. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). MAX TEMPERATURE.....AROUND 66. MIN HUMIDITY........38 PERCENT. EYE LEVEL WINDS.....NORTHEAST WINDS 13 TO 17 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......3500 FT AGL INCREASING TO 4600 FT AGL LATE IN THE MORNING. MIXING WINDS........NORTHEAST 14 TO 23 MPH SHIFTING TO THE EAST AROUND 13 MPH LATE IN THE AFTERNOON. SMOKE DISPERSAL.....GOOD TO EXCELLENT (32000-63800 KNOT-FT). WIND (20 FT)........NORTHEAST WINDS 13 TO 17 MPH. TIME (CDT) 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........35 32 31 32 35 37 39 42 WEATHER COV..... WEATHER TYPE.... TSTM COV........ TEMP............61 62 63 64 65 65 65 64 RH..............51 48 46 43 40 38 38 38 20 FT WIND DIR..NE NE NE NE NE NE NE E 20 FT WIND SPD..16 15 14 13 13 13 13 14 20 FT WIND GUST. 15 15 15 15 15 15 EYE LVL WND DIR.NE NE NE NE NE NE NE E EYE LVL WND SPD.11 11 10 9 9 9 9 10 EYE LVL WND GST. 15 15 15 15 15 15 MIX HGT (KFT)...3.5 3.9 4.4 4.5 4.5 4.6 4.5 4.5 MIXNG WIND DIR..NE NE NE NE NE NE E E MIXNG WIND SPD..21 18 16 15 14 14 13 13 HAINES INDEX....4 3 3 3 3 3 3 3 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING MOSTLY CLOUDY (65-75 PERCENT). CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. MIN TEMPERATURE.....AROUND 44. MAX HUMIDITY........68 PERCENT. EYE LEVEL WINDS.....EAST WINDS 14 TO 20 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......4400 FT AGL DECREASING TO 2100 FT AGL EARLY IN THE EVENING. MIXING WINDS........EAST 14 TO 23 MPH SHIFTING TO THE SOUTHEAST 24 TO 29 MPH AFTER MIDNIGHT. SMOKE DISPERSAL.....POOR TO GOOD (11500-53200 KNOT-FT). WIND (20 FT)........EAST WINDS 14 TO 20 MPH. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........43 54 69 80 80 81 WEATHER COV..... CHANCE CHANCE CHANCE WEATHER TYPE....NONE NONE NONE RNSHWR RNSHWR RNSHWR TSTM COV........ TEMP............62 57 53 51 48 47 RH..............39 47 54 59 63 65 20 FT WIND......E 14 E 14 E 15 E 16 E 17 E 18 20 FT WIND GUST.20 20 20 25 25 25 EYE LEVEL WIND..E 10 E 10 E 11 E 11 E 12 E 13 EYE LVL WND GST.20 20 20 25 25 25 MIX HGT (FT)....4400 1900 1100 2100 1700 1600 MIXNG WIND......E 14 E 20 E 23 E 23 SE 24 SE 28 HAINES INDEX....3 4 4 5 4 4 .FRIDAY... SKY/WEATHER.........CLOUDY (85-95 PERCENT). RAIN SHOWERS LIKELY. MAX TEMPERATURE.....AROUND 47. MIN HUMIDITY........65 PERCENT. EYE LEVEL WINDS.....BREEZY. EAST WINDS 21 TO 28 MPH. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2600 FT AGL. MIXING WINDS........EAST 31 TO 40 MPH INCREASING TO 40 TO 41 MPH LATE IN THE AFTERNOON. SMOKE DISPERSAL.....GOOD TO EXCELLENT (53100-93400 KNOT-FT). WIND (20 FT)........BREEZY. EAST WINDS 21 TO 28 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........81 87 93 95 WEATHER COV.....LIKELY LIKELY LIKELY LIKELY WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR TSTM COV........ISOLTD ISOLTD ISOLTD ISOLTD TEMP............46 46 46 47 RH..............65 68 68 65 20 FT WIND......E 21G30 E 24G30 E 28G35 E 26G35 EYE LEVEL WIND..E 15G30 E 17G30 E 20G35 E 18G35 MIX HGT (FT)....2000 2000 2500 2600 MIXNG WIND......E 31 SE 35 E 38 E 41 HAINES INDEX....3 3 3 3 $$ FORECASTER...VACHALEK REQUESTED BY...PETE HILDRETH TYPE OF REQUEST...PRESCRIBED .TAG 20120426.GLASS.01/DMX