FNUS73 KDMX 171340 FWSDMX SPOT FORECAST FOR OVERLOOK...IA DNR NATIONAL WEATHER SERVICE DES MOINES IA 840 AM CDT FRI APR 17 2009 FORECAST IS BASED ON IGNITION TIME OF 1100 CDT ON APRIL 17. 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 WILL CONTINUE OVER THE AREA TODAY. LIGHT EAST TO SOUTHEAST WINDS PREVAIL UNDER GENERALLY SUNNY SKIES. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT). MAX TEMPERATURE.....AROUND 67. MIN HUMIDITY........52 PERCENT. EYE LEVEL WINDS.....SOUTHEAST WINDS 5 TO 9 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2200 FT AGL INCREASING TO 4400 FT AGL IN THE LATE MORNING AND AFTERNOON...THEN DECREASING TO 1700 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........SOUTHEAST 7 TO 16 MPH INCREASING TO AROUND 17 MPH LATE IN THE AFTERNOON. SMOKE DISPERSAL.....GOOD (48800 KNOT-FT). TIME (CDT) 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........40 43 45 46 47 49 51 52 WEATHER COV..... WEATHER TYPE.... TEMP............58 60 62 64 65 66 66 65 RH..............62 60 58 54 52 52 52 54 EYE LVL WND DIR.SE E E E SE SE SE SE EYE LVL WND SPD.6 6 6 7 7 7 7 6 EYE LVL WND GST.15 15 15 15 15 15 15 15 MIX HGT (KFT)...2.7 3.2 3.7 3.9 4.2 4.4 3.1 1.7 MIXNG WIND DIR..SE S S SE SE SE SE SE MIXNG WIND SPD..15 14 12 12 12 13 15 17 HAINES INDEX....4 4 4 4 5 5 5 4 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). MIN TEMPERATURE.....AROUND 51. MAX HUMIDITY........86 PERCENT. EYE LEVEL WINDS.....EAST WINDS 6 TO 8 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......400 FT AGL. MIXING WINDS........SOUTHEAST 10 TO 17 MPH DECREASING TO 6 TO 7 MPH IN THE LATE EVENING AND OVERNIGHT. SMOKE DISPERSAL.....POOR (5400 KNOT-FT). TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........55 60 66 70 74 80 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............64 60 58 56 54 53 RH..............54 64 69 74 80 83 EYE LEVEL WIND..SE 6 SE 6 E 6 E 6 E 5 E 5 EYE LEVEL WIND..15 15 15 15 10 10 MIX HGT (FT)....400 300 300 300 300 300 MIXNG WIND......SE 17 SE 10 SE 6 SE 7 SE 6 SE 6 HAINES INDEX....4 5 5 4 3 3 .SATURDAY... SKY/WEATHER.........CLOUDY (85-95 PERCENT). CHANCE OF RAIN SHOWERS IN THE MORNING...THEN SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 65. MIN HUMIDITY........63 PERCENT. EYE LEVEL WINDS.....EAST WINDS 6 TO 8 MPH. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1500 FT AGL INCREASING TO 3100 FT AGL EARLY IN THE AFTERNOON. MIXING WINDS........SOUTHEAST 6 TO 7 MPH SHIFTING TO THE SOUTHWEST 8 TO 9 MPH EARLY IN THE MORNING...THEN SHIFTING TO THE SOUTHEAST 6 TO 14 MPH LATE IN THE MORNING. SMOKE DISPERSAL.....GOOD (37600 KNOT-FT). TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........85 91 98 96 WEATHER COV.....CHANCE CHANCE DEFNTE DEFNTE WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR TEMP............52 58 62 64 RH..............86 72 67 65 EYE LEVEL WIND..E 5G10 E 6G15 E 6G15 E 6G15 MIX HGT (FT)....300 500 700 3100 MIXNG WIND......SE 6 SW 9 E 6 SE 14 HAINES INDEX....3 3 3 3 $$ FORECASTER...VACHALEK REQUESTED BY...DAVID KUTZ TYPE OF REQUEST...PRESCRIBED .TAG 20090417.OVERL.01/DMX