FNUS73 KDMX 121320 FWSDMX SPOT FORECAST FOR EATON WPA...IOWA DNR NATIONAL WEATHER SERVICE DES MOINES IA 820 AM CDT TUE APR 12 2011 FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON APRIL 12. 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 OVER IOWA WILL SLOWLY SHIFT EASTWARD INTO ILLINOIS DURING THE DAY AND WINDS ARE EXPECTED TO BECOME SOUTHERLY BY AROUND MIDDAY AND INCREASE DURING THE AFTERNOON HOURS. THE RELATIVE HUMIDITY WILL FALL FAIRLY QUICKLY THROUGH THE REMAINDER OF THE MORNING AND INTO THE AFTERNOON AS THE TEMPERATURES RISE TO NEAR 70. INCREASING CLOUDINESS IS ANTICIPATED OVERNIGHT TONIGHT INTO WEDNESDAY MORNING AS AN UPPER LEVEL DISTURBANCE APPROACHES THE REGION. RAIN SHOWERS ARE FORECAST TO DEVELOP BY THE AFTERNOON WEDNESDAY. .TODAY... SKY/WEATHER.........SUNNY (15-25 PERCENT). TEMPERATURE.........51 AT IGNITION...MAX 71. RH..................54 PERCENT AT IGNITION...MIN 26 PERCENT. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1900 FT AGL INCREASING TO 6800 FT AGL. MIXING WINDS........SOUTHWEST 5 TO 14 MPH SHIFTING TO THE SOUTH 14 TO 21 MPH IN THE LATE MORNING AND AFTERNOON. SMOKE DISPERSAL.....MARGINAL (37700 KNOT-FT) INCREASING TO EXCELLENT (99600 KNOT-FT) IN THE AFTERNOON. WIND (20 FT)........WINDS SOUTHWEST AT 10 MPH AT IGNITION...OTHERWISE SOUTH WINDS 6 TO 13 MPH. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........16 21 25 28 28 30 31 33 34 WEATHER COV..... WEATHER TYPE.... TEMP............51 56 60 63 66 68 69 69 68 RH..............54 45 39 35 30 28 26 27 28 20 FT WIND DIR..SW SW SW SW S S S S S 20 FT WIND SPD..10 12 12 13 13 13 13 13 12 20 FT WIND GUST.15 15 15 15 15 15 15 15 15 MIX HGT (KFT)...0.6 1.9 3.1 4.3 5.1 5.9 6.8 6.2 5.6 MIXNG WIND DIR..SW SW SW S S S S S S MIXNG WIND SPD..14 15 14 14 14 15 16 18 21 HAINES INDEX....5 5 5 5 5 6 6 6 6 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING MOSTLY CLOUDY (65-75 PERCENT). TEMPERATURE.........MIN 46. RH..................MAX 79 PERCENT. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......5100 FT AGL DECREASING TO 1900 FT AGL EARLY IN THE EVENING. MIXING WINDS........SOUTH 13 TO 21 MPH DECREASING TO 3 TO 10 MPH IN THE LATE EVENING AND OVERNIGHT. SMOKE DISPERSAL.....GOOD (91300 KNOT-FT) DECREASING TO POOR (2300 KNOT-FT) IN THE LATE EVENING AND OVERNIGHT. WIND (20 FT)........EAST WINDS 8 TO 12 MPH SHIFTING TO THE NORTH AROUND 8 MPH EARLY IN THE MORNING. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........35 44 57 66 72 79 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............67 60 57 54 51 50 RH..............29 39 45 57 63 68 20 FT WIND......S 12 S 10 S 10 S 9 SE 8 NE 8 20 FT WIND GUST.15 15 15 10 10 10 MIX HGT (FT)....5100 1900 300 300 300 300 MIXNG WIND......S 21 S 13 S 9 S 10 S 9 S 6 HAINES INDEX....6 5 5 5 4 4 .WEDNESDAY... SKY/WEATHER.........CLOUDY (85-95 PERCENT). CHANCE OF RAIN SHOWERS IN THE MORNING...THEN RAIN SHOWERS LIKELY IN THE AFTERNOON. TEMPERATURE.........MAX 53. RH..................MIN 63 PERCENT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2100 FT AGL. MIXING WINDS........SOUTH 1 TO 2 MPH SHIFTING TO THE NORTHEAST 1 TO 10 MPH LATE IN THE MORNING...THEN INCREASING TO 18 TO 25 MPH EARLY IN THE AFTERNOON INCREASING TO AROUND 29 MPH LATE IN THE AFTERNOON. SMOKE DISPERSAL.....FAIR (46700 KNOT-FT). WIND (20 FT)........NORTHEAST WINDS 9 TO 18 MPH SHIFTING TO THE NORTH AROUND 20 MPH IN THE AFTERNOON. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........84 89 94 96 WEATHER COV.....CHANCE CHANCE LIKELY LIKELY WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR TEMP............48 49 52 52 RH..............77 77 71 66 20 FT WIND......N 9G10 N 14G20 NE 18G25 N 20G30 MIX HGT (FT)....300 300 2100 1500 MIXNG WIND......S 2 SW 2 E 3 NE 25 HAINES INDEX....4 4 4 3 $$ FORECASTER...PODRAZIK REQUESTED BY...ROB PATTERSON TYPE OF REQUEST...PRESCRIBED .TAG 20110412.EATON.01/DMX