FNUS73 KDMX 141334 FWSDMX SPOT FORECAST FOR MITCHELL TRACT...IOWA DNR NATIONAL WEATHER SERVICE DES MOINES IA 834 AM CDT THU MAY 14 2009 FORECAST IS BASED ON IGNITION TIME OF 1500 CDT ON MAY 14. 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... GUSTY NORTHWEST WINDS WILL DIMINISH AS HIGH PRESSURE FROM WESTERN KANSAS INTO WESTERN NORTH DAKOTA MOVES INTO WESTERN IOWA THIS EVENING. CLOUDINESS WILL CONTINUE ACROSS THE NORTHEAST HALF OF IOWA THIS MORNING BEFORE BREAKING UP...HOWEVER NO RAINFALL IS EXPECTED. .TODAY... SKY/WEATHER.........CLOUDY (85-95 PERCENT) THEN BECOMING PARTLY SUNNY (45-55 PERCENT). MAX TEMPERATURE.....AROUND 64. MIN HUMIDITY........36 PERCENT. EYE LEVEL WINDS.....SOUTHWEST WINDS 7 TO 15 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......4500 FT AGL. MIXING WINDS........NORTHWEST 18 TO 24 MPH SHIFTING TO THE WEST 9 TO 17 MPH EARLY IN THE MORNING...THEN SHIFTING TO THE SOUTHWEST 6 TO 7 MPH LATE IN THE AFTERNOON. SMOKE DISPERSAL.....EXCELLENT (67100 KNOT-FT). TIME (CDT) 3PM 4PM 5PM 6PM SKY (%).........52 43 40 35 WEATHER COV..... WEATHER TYPE.... TEMP............62 63 63 62 RH..............39 38 36 38 EYE LVL WND DIR.W W SW S EYE LVL WND SPD.7 6 6 6 EYE LVL WND GST.15 15 10 10 MIX HGT (KFT)...3.9 3.7 3.5 3.4 MIXNG WIND DIR..W W SW S MIXNG WIND SPD..13 9 7 6 HAINES INDEX....5 5 5 5 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING MOSTLY CLOUDY (55-65 PERCENT). MIN TEMPERATURE.....AROUND 48. MAX HUMIDITY........77 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 7 TO 10 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......3300 FT AGL DECREASING TO 1300 FT AGL EARLY IN THE EVENING. MIXING WINDS........SOUTH 5 TO 13 MPH INCREASING TO 15 TO 17 MPH EARLY IN THE MORNING. SMOKE DISPERSAL.....FAIR (13100 KNOT-FT). TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........32 37 45 50 56 63 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............61 57 55 53 51 50 RH..............39 47 53 59 66 74 EYE LEVEL WIND..S 6 S 6 S 6 S 6 S 6 S 8 EYE LEVEL WIND..10 10 10 10 15 15 MIX HGT (FT)....3300 1300 300 300 300 300 MIXNG WIND......S 5 SE 7 SE 9 S 12 S 12 S 15 HAINES INDEX....5 5 5 4 4 4 .FRIDAY... SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). CHANCE OF RAIN SHOWERS THROUGH THE DAY. CHANCE OF THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 68. MIN HUMIDITY........50 PERCENT. EYE LEVEL WINDS.....SOUTHWEST WINDS 10 TO 13 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1900 FT AGL INCREASING TO 3900 FT AGL IN THE LATE MORNING AND AFTERNOON. MIXING WINDS........WEST 17 TO 26 MPH. SMOKE DISPERSAL.....GOOD (56100 KNOT-FT) INCREASING TO EXCELLENT (84900 KNOT-FT) LATE IN THE AFTERNOON. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........68 75 82 79 WEATHER COV.....CHANCE CHANCE CHANCE CHANCE WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR TEMP............50 59 64 67 RH..............77 60 56 50 EYE LEVEL WIND..S 9G20 S 10G25 S 10G25 SW 9G20 MIX HGT (FT)....300 1900 2900 3900 MIXNG WIND......S 20 S 25 S 18 W 20 HAINES INDEX....3 3 2 4 $$ FORECASTER...ALBRECHT REQUESTED BY...DAVE WHITE TYPE OF REQUEST...PRESCRIBED .TAG 20090514.MITCH.01/DMX