FNUS73 KDMX 121324 FWSDMX SPOT FORECAST FOR BIG CREEK WMA...IOWA DNR NATIONAL WEATHER SERVICE DES MOINES IA 824 AM CDT THU APR 12 2012 FORECAST IS BASED ON IGNITION TIME OF 1200 CDT ON APRIL 12. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. AN INITIAL OBSERVATION AT IGNITION AND A MID BURN OBSERVATION ARE REQUIRED... PLEASE RELAY THEM TO THE NATIONAL WEATHER SERVICE FOR EACH PRESCRIBED BURN. .DISCUSSION... HIGH PRESSURE OVER EASTERN IOWA WILL MOVE EAST TODAY WITH AN INCREASING SOUTEHAST FLOW DEVELOPING. SHOWERS WIL DEVELOP TO THE WEST THIS MORNING AND THEN SPREAD EAST INTO THE AREA THIS AFTERNOON. THE WEATHER PATTERN LOOKS WET FROM FRIDAY THROUGH SUNDAY. .TODAY... SKY/WEATHER.........SUNNY (15-25 PERCENT) THEN BECOMING PARTLY SUNNY (65-75 PERCENT). PATCHY FROST EARLY IN THE MORNING. SLIGHT CHANCE OF RAIN SHOWERS LATE IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 63. MIN HUMIDITY........33 PERCENT. EYE LEVEL WINDS.....SOUTHEAST WINDS 7 TO 15 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2000 FT AGL INCREASING TO 4000 FT AGL LATE IN THE MORNING. MIXING WINDS........SOUTH 5 TO 14 MPH INCREASING TO AROUND 15 MPH EARLY IN THE AFTERNOON. SMOKE DISPERSAL.....POOR TO GOOD (1000-51800 KNOT-FT). WIND (20 FT)........SOUTHEAST WINDS 7 TO 15 MPH. TIME (CDT) 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........68 75 76 78 80 81 83 WEATHER COV..... SCH SCH SCH WEATHER TYPE.... RW RW RW TSTM COV........ TEMP............54 56 58 61 62 62 61 RH..............36 37 36 33 33 35 38 20 FT WIND DIR..S S S S S S SE 20 FT WIND SPD..12 13 14 15 15 14 13 20 FT WIND GUST.15 15 20 20 20 20 15 EYE LVL WND DIR.S S S S S S SE EYE LVL WND SPD.9 9 10 11 11 10 9 EYE LVL WND GST.15 15 20 20 20 20 15 MIX HGT (KFT)...2.8 3.5 3.7 3.8 4.0 3.7 3.4 MIXNG WIND DIR..S S S S S S S MIXNG WIND SPD..14 14 14 15 15 15 15 HAINES INDEX....4 4 4 3 3 3 3 .TONIGHT... SKY/WEATHER.........CLOUDY (85-95 PERCENT). CHANCE OF RAIN SHOWERS IN THE EVENING. ISOLATED THUNDERSTORMS THROUGH THE NIGHT. RAIN SHOWERS LIKELY AFTER MIDNIGHT. MIN TEMPERATURE.....AROUND 48. MAX HUMIDITY........80 PERCENT. EYE LEVEL WINDS.....SOUTHEAST WINDS 13 TO 17 MPH. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......3200 FT AGL DECREASING TO 1000 FT AGL IN THE LATE EVENING AND OVERNIGHT. MIXING WINDS........SOUTHEAST 15 TO 22 MPH. SMOKE DISPERSAL.....POOR TO GOOD (6400-41200 KNOT-FT). WIND (20 FT)........SOUTHEAST WINDS 13 TO 17 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........84 89 95 100 100 100 WEATHER COV.....CHANCE CHANCE CHANCE LIKELY LIKELY LIKELY WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TSTM COV........ISOLTD ISOLTD ISOLTD ISOLTD ISOLTD ISOLTD TEMP............61 57 54 53 51 50 RH..............39 47 57 66 74 80 20 FT WIND......SE 13 SE 14 SE 15 SE 16 SE 16 SE 16 20 FT WIND GUST.15 20 20 25 25 25 EYE LEVEL WIND..SE 9 SE 10 SE 11 SE 11 SE 11 SE 11 EYE LVL WND GST.15 20 20 25 25 25 MIX HGT (FT)....3200 1300 500 700 700 900 MIXNG WIND......S 15 SE 16 SE 18 SE 20 SE 22 SE 21 HAINES INDEX....3 3 3 3 3 3 $$ FORECASTER...JOHNSON REQUESTED BY...WILDLIFE TYPE OF REQUEST...PRESCRIBED .TAG 20120412.BIGCR.01/DMX