FNUS73 KDMX 011334 FWSDMX SPOT FORECAST FOR MAHASKA CO...MAHASKA EMERGENCY MANAGEMENT NATIONAL WEATHER SERVICE DES MOINES IA 834 AM CDT THU SEP 1 2011 FORECAST IS BASED ON REQUEST TIME OF 0821 CDT ON SEPTEMBER 01. 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... THE WIND WILL BECOME BREEZY OUT OF THE SOUTHWEST BY LATE THIS MORNING AND INTO THE AFTERNOON. A FEW GUSTS MAY APPROACH 30 MPH. A SLOW MOVING COLD FRONT WILL ENTER CENTRAL IOWA ON FRIDAY WITH WINDS BECOMING MORE WESTERLY AHEAD OF THE SYSTEM. THE BOUNDARY WILL BE VERY CLOSE IN THE AFTERNOON WITH POTENTIAL FOR VARIABLE WINDS. .TODAY... SKY/WEATHER.........SUNNY (10-20 PERCENT). MAX TEMPERATURE.....AROUND 97. MIN HUMIDITY........43 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 8 TO 17 MPH. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2100 FT AGL. MIXING WINDS........SOUTHWEST 7 TO 16 MPH INCREASING TO SOUTH 24 TO 30 MPH. SMOKE DISPERSAL.....GOOD (54100 KNOT-FT). WIND (20 FT)........SOUTH WINDS 10 TO 20 MPH. MIXING WINDS........SOUTHWEST 7 TO 16 MPH INCREASING TO SOUTH 24 TO 30 MPH. TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........11 12 12 12 13 13 14 15 16 17 19 WEATHER COV..... WEATHER TYPE.... TSTM COV........ TEMP............76 79 84 87 91 93 94 95 96 95 94 RH..............82 74 63 57 50 47 46 45 43 45 46 20 FT WIND DIR..SE S S S S SW SW S S S S 20 FT WIND SPD..8 8 9 12 13 15 16 17 17 16 15 20 FT WIND GUST.10 10 10 15 15 20 25 25 25 25 20 EYE LVL WND DIR.SE S S S S SW SW S S S S EYE LVL WND SPD.6 6 6 9 9 11 11 12 12 11 11 EYE LVL WND GST.10 10 10 15 15 20 25 25 25 25 20 MIX HGT (KFT)...0.5 0.8 1.0 1.3 1.7 2.0 2.0 2.1 2.1 1.5 0.9 MIXNG WIND DIR..S S SW SW SW SW SW SW S S S MIXNG WIND SPD..9 13 16 17 20 21 24 28 30 29 24 HAINES INDEX....6 6 6 6 6 6 6 6 6 6 6 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT). MIN TEMPERATURE.....AROUND 74. MAX HUMIDITY........74 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 10 TO 13 MPH. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......300 FT AGL. MIXING WINDS........SOUTHWEST 13 TO 21 MPH. SMOKE DISPERSAL.....POOR (4500 KNOT-FT). WIND (20 FT)........SOUTH WINDS 10 TO 13 MPH. MIXING WINDS........SOUTHWEST 13 TO 21 MPH. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........19 21 23 24 28 34 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TSTM COV........ TEMP............92 85 82 80 78 77 RH..............49 59 65 67 71 71 20 FT WIND......S 13 S 13 S 13 S 13 S 13 S 12 20 FT WIND GUST.15 15 15 15 15 15 EYE LEVEL WIND..S 9 S 9 S 9 S 9 S 9 S 9 EYE LVL WND GST.15 15 15 15 15 15 MIX HGT (FT)....300 300 300 300 300 300 MIXNG WIND......S 21 S 14 S 13 S 16 S 16 S 14 HAINES INDEX....6 5 5 6 6 6 .FRIDAY... SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 90. MIN HUMIDITY........52 PERCENT. EYE LEVEL WINDS.....WEST WINDS 7 TO 10 MPH. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2200 FT AGL INCREASING TO 2900 FT AGL IN THE AFTERNOON. MIXING WINDS........SOUTHWEST 14 TO 21 MPH SHIFTING TO THE NORTHWEST 6 TO 10 MPH IN THE AFTERNOON. SMOKE DISPERSAL.....POOR (26800 KNOT-FT). WIND (20 FT)........WEST WINDS 7 TO 10 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS. MIXING WINDS........SOUTHWEST 14 TO 21 MPH SHIFTING TO THE NORTHWEST 6 TO 10 MPH IN THE AFTERNOON. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........39 41 44 57 WEATHER COV.....S CHC S CHC CHANCE CHANCE WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR TSTM COV........S CHC S CHC CHANCE CHANCE TEMP............76 82 87 89 RH..............74 63 55 52 20 FT WIND......SW 10G15 SW 10G15 W 8G10 W 7 EYE LEVEL WIND..SW 7G15 SW 7G15 W 6G10 W 5 MIX HGT (FT)....300 700 2200 2900 MIXNG WIND......SW 14 SW 21 W 14 W 6 HAINES INDEX....6 6 6 6 $$ FORECASTER...DONAVON REQUESTED BY...MAHASKA EMA TYPE OF REQUEST...WILDFIRE .TAG 20110901.MAHAS.01/DMX