FNUS73 KDMX 141027 FWSDMX SPOT FORECAST FOR EAST SWAN LAKE WMA...IOWA DNR NATIONAL WEATHER SERVICE DES MOINES IA 527 AM CDT TUE APR 14 2009 FORECAST IS BASED ON IGNITION TIME OF 1300 CDT ON APRIL 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... DRY CONDITIONS AND LIGHT WINDS ARE ANTICIPATED TODAY AND WEDNESDAY AS HIGH PRESSURE MOVES ACROSS THE GREAT LAKES REGION. DESPITE THE LIGHT WINDS...THE MIXING HEIGHTS ARE GOOD DURING THE PERIOD RESULTING IN EXCELLENT MIXING AND SMOKE DISPERSAL CONDITIONS. THE RELATIVE HUMIDITIES WILL BE QUITE LOW...FALLING INTO THE 20S BY THE AFTERNOON HOURS. .TODAY... SKY/WEATHER.........SUNNY (10-20 PERCENT). MAX TEMPERATURE.....AROUND 62. MIN HUMIDITY........23 PERCENT. EYE LEVEL WINDS.....NORTHEAST WINDS AROUND 6 MPH. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1200 FT AGL INCREASING TO 6900 FT AGL. MIXING WINDS........EAST 3 TO 12 MPH. SMOKE DISPERSAL.....GOOD (41900 KNOT-FT) INCREASING TO EXCELLENT (60000 KNOT-FT) IN THE AFTERNOON. TIME (CDT) 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........24 23 20 18 14 0 WEATHER COV..... WEATHER TYPE.... TEMP............55 57 59 60 60 59 RH..............27 25 24 23 23 24 EYE LVL WND DIR.NE NE NE NE NE E EYE LVL WND SPD.5 5 5 5 5 5 EYE LVL WND GST.10 10 10 10 10 MIX HGT (KFT)...6.0 6.3 6.6 6.9 6.4 6.0 MIXNG WIND DIR..E E E E E E MIXNG WIND SPD..12 10 9 8 8 9 HAINES INDEX....6 6 6 6 6 6 .TONIGHT... SKY/WEATHER.........CLEAR (0-10 PERCENT). MIN TEMPERATURE.....AROUND 33. MAX HUMIDITY........64 PERCENT. EYE LEVEL WINDS.....EAST WINDS AROUND 5 MPH EARLY IN THE EVENING BECOMING LIGHT...THEN BECOMING SOUTHEAST AROUND 5 MPH AFTER MIDNIGHT. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......5500 FT AGL DECREASING TO 2000 FT AGL EARLY IN THE EVENING. MIXING WINDS........SOUTHEAST 3 TO 9 MPH. SMOKE DISPERSAL.....GOOD (44100 KNOT-FT). TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........0 1 4 5 7 10 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............57 50 45 42 39 37 RH..............25 29 38 44 52 59 EYE LEVEL WIND..E 4 E 3 E 3 E 3 SE 4 SE 4 EYE LEVEL WIND..5 5 5 5 5 5 MIX HGT (FT)....5500 2000 300 300 300 300 MIXNG WIND......E 9 E 8 E 7 SE 7 S 6 S 3 HAINES INDEX....6 6 6 5 5 5 .WEDNESDAY... SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). MAX TEMPERATURE.....AROUND 65. MIN HUMIDITY........22 PERCENT. EYE LEVEL WINDS.....SOUTHEAST WINDS 6 TO 15 MPH. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2100 FT AGL INCREASING TO 5100 FT AGL LATE IN THE MORNING. MIXING WINDS........SOUTHEAST 5 TO 12 MPH INCREASING TO 15 TO 21 MPH IN THE LATE MORNING AND AFTERNOON. SMOKE DISPERSAL.....GOOD (54500 KNOT-FT) INCREASING TO EXCELLENT (85100 KNOT-FT) IN THE AFTERNOON. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........10 25 36 42 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............36 48 59 64 RH..............64 39 26 22 EYE LEVEL WIND..SE 5 SE 7G15 SE 12G25 SE 12G25 MIX HGT (FT)....300 900 4500 5100 MIXNG WIND......SE 5 SE 15 SE 20 SE 18 HAINES INDEX....5 5 6 6 $$ FORECASTER...DONAVON REQUESTED BY...DAVE WHITE TYPE OF REQUEST...PRESCRIBED .TAG 20090414.EASTS.01/DMX