FNUS73 KDMX 111326 FWSDMX SPOT FORECAST FOR FOUR MILE...USFWS NATIONAL WEATHER SERVICE DES MOINES IA 826 AM CDT MON MAY 11 2009 FORECAST IS BASED ON IGNITION TIME OF 1100 CDT ON MAY 11. 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... HIGH PRESSURE CENTERED OVER IOWA THIS MORNING WILL MOVE SOUTHEAST TODAY AND SOUTHERLY SURFACE WINDS WILL RETURN AND INCREASE DURING THE AFTERNOON. MOISTURE INCREASES TUESDAY AS DOES THE CHANCE FOR RAIN. A COLD FRONT WILL APPROACH AND MOVE THROUGH THE REGION WEDNESDAY. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). TEMPERATURE.........58 AT IGNITION...MAX 70. RH..................42 PERCENT AT IGNITION...MIN 28 PERCENT. EYE LEVEL WINDS.....LIGHT WINDS BECOMING SOUTH 6 TO 11 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1300 FT AGL INCREASING 6400 FT AGL LATE IN THE MORNING INCREASING TO 9700 FT AGL EARLY IN THE AFTERNOON INCREASING TO 10700 FT AGL...THEN DECREASING TO 8700 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........SOUTH 2 TO 8 MPH INCREASING TO 13 TO 16 MPH EARLY IN THE AFTERNOON. SMOKE DISPERSAL.....GOOD (44200 KNOT-FT) INCREASING TO EXCELLENT (128200 KNOT-FT). TIME (CDT) 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........33 34 34 35 37 39 40 42 WEATHER COV..... WEATHER TYPE.... TEMP............58 61 64 66 68 69 68 68 RH..............42 38 34 32 29 28 28 28 EYE LVL WND DIR.SW S S S S S S S EYE LVL WND SPD.6 6 6 7 8 9 9 9 EYE LVL WND GST.10 10 15 15 15 20 20 20 MIX HGT (KFT)...5.0 6.4 7.8 8.8 9.7 11 9.7 8.7 MIXNG WIND DIR..SW S S S S SW S S MIXNG WIND SPD..7 8 9 10 13 14 15 16 HAINES INDEX....3 4 4 4 4 4 4 4 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING MOSTLY CLOUDY (55-65 PERCENT). TEMPERATURE.........MIN 50. RH..................MAX 69 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 9 TO 12 MPH. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........43 48 55 60 62 64 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............67 62 58 56 53 52 RH..............29 38 45 53 61 66 EYE LEVEL WIND..S 8 S 8 S 7 S 7 S 8 S 9 EYE LEVEL WIND..15 15 15 15 15 20 .TUESDAY... SKY/WEATHER.........PARTLY SUNNY (65-75 PERCENT). TEMPERATURE.........MAX 68. RH..................MIN 48 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 13 TO 20 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2000 FT AGL INCREASING TO 5000 FT AGL EARLY IN THE MORNING. MIXING WINDS........SOUTH 20 TO 28 MPH INCREASING TO 41 TO 43 MPH. SMOKE DISPERSAL.....EXCELLENT (74900 KNOT-FT) INCREASING TO EXCELLENT (181200 KNOT-FT). TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........66 68 70 67 WEATHER COV.....S CHC S CHC S CHC S CHC WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR TEMP............52 60 65 67 RH..............69 55 50 49 EYE LEVEL WIND..S 10G20 S 14G30 S 16G35 S 16G35 MIX HGT (FT)....1000 4200 5000 4900 MIXNG WIND......S 20 S 31 S 32 S 43 HAINES INDEX....2 3 4 4 $$ FORECASTER...MOYER REQUESTED BY...BLAKE KNISLEY TYPE OF REQUEST...PRESCRIBED .TAG 20090511.FOURM.01/DMX