FNUS73 KDMX 211355 FWSDMX SPOT FORECAST FOR LOWER MORSE LAKE-PBG...IOWA DNR-USFWS NATIONAL WEATHER SERVICE DES MOINES IA 855 AM CDT WED APR 21 2010 FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON APRIL 21. 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... A WEAK BOUNDARY WILL DRIFT SOUTHWARD TODAY BRINGING A WIND SHIFT TO THE NORTH NORTHWEST DURING THE MIDDAY HOURS. SURFACE WINDS LOOK TO RANGE AROUND 5 MPH. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). TEMPERATURE.........62 AT IGNITION...MAX 72. MIN HUMIDITY........39 PERCENT AT IGNITION...MIN 28 PERCENT. WIND (EYE LEVEL)....LIGHT WINDS BECOMING NORTH 5 TO 6 MPH EARLY IN THE AFTERNOON. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......800 FT AGL INCREASING TO 3500 FT AGL LATE IN THE MORNING...THEN INCREASING TO 6100 FT AGL LATE IN THE MORNING INCREASING TO 10000 FT AGL EARLY IN THE AFTERNOON INCREASING TO 12700 FT AGL DECREASING TO 10000 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........NORTHWEST 6 TO 7 MPH. SMOKE DISPERSAL.....MARGINAL (37000 KNOT-FT) INCREASING TO GOOD (63400 KNOT-FT) IN THE AFTERNOON. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........28 28 28 28 30 32 35 38 41 WEATHER COV..... WEATHER TYPE.... TEMP............62 66 68 70 71 71 71 72 71 RH..............39 34 31 27 27 27 26 25 25 EYE LVL WND DIR.NW NW NW NW NW NW NW N N EYE LVL WND SPD.2 2 2 3 3 4 5 5 4 EYE LVL WND GST.5 5 5 5 5 5 5 MIX HGT (KFT)...0.8 3.5 6.1 8.7 10 11 13 11 10 MIXNG WIND DIR..W W NW NW NW NW NW NW N MIXNG WIND SPD..7 7 7 7 7 6 6 6 6 HAINES INDEX....5 5 5 5 5 6 6 6 6 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT). MIN TEMPERATURE.....43. MAX HUMIDITY........82 PERCENT. WIND (EYE LEVEL)....NORTHEAST WINDS 5 TO 7 MPH. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......8600 FT AGL DECREASING TO 500 FT AGL. MIXING WINDS........EAST 6 TO 9 MPH. SMOKE DISPERSAL.....GOOD (51800 KNOT-FT). TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........42 35 25 17 19 20 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............69 60 55 52 49 47 RH..............26 41 51 59 68 74 EYE LEVEL WIND..N 4 N 5 N 6 NE 6 NE 5 NE 4 EYE LEVEL WIND..5 10 10 10 5 MIX HGT (FT)....8600 3000 300 500 500 500 MIXNG WIND......N 7 NE 9 NE 8 E 6 NE 6 NE 6 HAINES INDEX....6 5 4 4 4 4 .THURSDAY... SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). MAX TEMPERATURE.....69. MIN HUMIDITY........37 PERCENT. WIND (EYE LEVEL)....SOUTH WINDS 5 TO 6 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2000 FT AGL INCREASING TO 7700 FT AGL. MIXING WINDS........SOUTHEAST 6 TO 7 MPH SHIFTING TO THE SOUTHWEST LATE IN THE MORNING. SMOKE DISPERSAL.....FAIR (41100 KNOT-FT). TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........17 22 31 38 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............45 56 64 68 RH..............82 55 41 37 EYE LEVEL WIND..NE 4G5 E 4G5 SE 5G10 S 5G10 MIX HGT (FT)....400 2000 6500 7700 MIXNG WIND......E 7 E 6 SW 6 SW 6 HAINES INDEX....4 4 5 4 $$ FORECASTER...MOYER REQUESTED BY...TODD WALROD TYPE OF REQUEST...PRESCRIBED .TAG 20100421.LOWER.01/DMX