FNUS73 KDMX 051241 FWSDMX SPOT FORECAST FOR MOUNT AYR...IOWA DNR NATIONAL WEATHER SERVICE DES MOINES IA 741 AM CDT MON APR 5 2010 FORECAST IS BASED ON IGNITION TIME OF 0900 CDT ON APRIL 05. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. PLEASE REMEMBER TO SUBMIT A MID BURN OBSERVATION TO THE NATIONAL WEATHER SERVICE FOR EACH PRESCRIBED BURN. .DISCUSSION... AN INCREASING THREAT OF THUNDERSTORMS IS EXPECTED BY LATE MORNING INTO THE AFTERNOON. THE STORM WILL BE CAPABLE OF HEAVY DOWNPOURS AS WELL AS HAIL. WINDS WILL BEGIN TO INCREASE AND BECOME EASTERLY BY LATE MORNING AS A WARM FRONT MOVES TOWARD SOUTHERN IOWA. .TODAY... SKY/WEATHER.........BECOMING MOSTLY CLOUDY (60-70 PERCENT). SCATTERED SHOWERS AND THUNDERSTORMS IN THE LATE MORNING AND AFTERNOON. TEMPERATURE.........52 AT IGNITION...MAX 74. MIN HUMIDITY........61 PERCENT AT IGNITION...MIN 48 PERCENT. WIND (EYE LEVEL)....EAST WINDS 5 TO 13 MPH SHIFTING TO THE SOUTHEAST 14 TO 16 MPH EARLY IN THE AFTERNOON. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1900 FT AGL INCREASING TO 4300 FT AGL LATE IN THE MORNING. MIXING WINDS........EAST 2 TO 10 MPH INCREASING TO SOUTHEAST 24 TO 28 MPH. SMOKE DISPERSAL.....FAIR (41700 KNOT-FT) INCREASING TO EXCELLENT (104300 KNOT-FT) IN THE AFTERNOON. TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........54 63 72 81 85 84 82 80 78 76 WEATHER COV..... SCT SCT SCT SCT SCT SCT SCT SCT SCT WEATHER TYPE.... RW RW RW RW RW RW RW RW RW TEMP............52 56 60 64 67 69 72 73 73 72 RH..............61 57 53 50 49 49 48 49 51 57 EYE LVL WND DIR.E E E E E E SE SE SE S EYE LVL WND SPD.6 6 7 8 9 10 12 13 13 11 EYE LVL WND GST.10 15 15 15 20 25 25 30 25 25 MIX HGT (KFT)...0.7 1.0 1.9 2.8 3.6 3.9 4.1 4.3 4.2 4.1 MIXNG WIND DIR..E E E SE SE SE SE SE SE SE MIXNG WIND SPD..7 10 14 17 21 24 26 28 28 26 HAINES INDEX....4 4 4 4 4 4 3 3 3 3 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SHOWERS AND THUNDERSTORMS LIKELY. MIN TEMPERATURE.....61. MAX HUMIDITY........90 PERCENT. WIND (EYE LEVEL)....SOUTH WINDS 9 TO 12 MPH. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......3900 FT AGL DECREASING TO 1500 FT AGL EARLY IN THE EVENING. MIXING WINDS........SOUTH 16 TO 25 MPH. SMOKE DISPERSAL.....GOOD (86100 KNOT-FT) DECREASING TO POOR (16000 KNOT-FT) IN THE LATE EVENING AND OVERNIGHT. TIME (CDT) 7 PM 10 PM 1 AM 4 AM SKY (%).........75 75 85 75 WEATHER COV.....LIKELY LIKELY LIKELY LIKELY WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR TEMP............72 67 65 63 RH..............61 78 87 90 EYE LEVEL WIND..S 10G20 S 7G15 S 9G20 S 10G20 MIX HGT (FT)....3900 300 1100 800 MIXNG WIND......SE 25 SW 20 S 17 S 18 HAINES INDEX....3 3 3 2 .TUESDAY... SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT). CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....74. MIN HUMIDITY........59 PERCENT. WIND (EYE LEVEL)....SOUTH WINDS 10 TO 15 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1800 FT AGL INCREASING TO 3900 FT AGL IN THE LATE MORNING AND AFTERNOON. MIXING WINDS........SOUTH 15 TO 23 MPH INCREASING TO 25 TO 31 MPH IN THE AFTERNOON. SMOKE DISPERSAL.....GOOD (60800 KNOT-FT) INCREASING TO EXCELLENT (98000 KNOT-FT) IN THE AFTERNOON. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........70 69 79 75 WEATHER COV.....S CHC S CHC CHANCE CHANCE WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR TEMP............62 67 71 73 RH..............90 75 68 59 EYE LEVEL WIND..S 8G15 S 11G25 S 10G30 S 12G25 MIX HGT (FT)....300 2500 3300 3900 MIXNG WIND......S 15 S 18 S 25 S 29 HAINES INDEX....2 3 4 5 $$ FORECASTER...COGIL REQUESTED BY...NATURAL RESOURCE TECH TYPE OF REQUEST...PRESCRIBED .TAG 20100405.MOUNT.01/DMX