FNUS73 KDMX 061452 FWSDMX SPOT FORECAST FOR SCHRADER WMA...IADNR NATIONAL WEATHER SERVICE DES MOINES IA 952 AM CDT THU MAY 6 2010 FORECAST IS BASED ON IGNITION TIME OF 0945 CDT ON MAY 06. 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... CLOUD COVER TO INCREASE THROUGHOUT THE DAY...WITH SHOWERS TO SPREAD ACROSS THE AREA THIS EVENING INTO THE OVERNIGHT HOURS. PRESSURE GRADIENT TO TIGHTEN AHEAD OF A LOW PRESSURE SYSTEM CURRENTLY OFF TO THE WEST/SOUTHWEST...BUT SHOULD KEEP EASTERLY WINDS UNDER 15 MPH FOR NOW. SOME THUNDERSTORMS POSSIBLE OVERNIGHT TONIGHT. GUSTY NORTHWEST WINDS EXPECTED FOR FRIDAY...WITH SUSTAINED 10 METER WINDS AROUND 25 TO 35 MPH WITH HIGHER GUSTS TO 45 MPH OR STRONGER. .TODAY... SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT). MAX TEMPERATURE.....AROUND 65. MIN HUMIDITY........38 PERCENT. WIND (EYE LEVEL)....EAST WINDS 7 TO 13 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2700 FT AGL INCREASING TO 5400 FT AGL. MIXING WINDS........SOUTHEAST 12 TO 17 MPH. SMOKE DISPERSAL.....GOOD (68400 KNOT-FT). TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........42 48 51 56 60 62 67 72 77 82 WEATHER COV..... WEATHER TYPE.... TEMP............46 50 53 57 60 61 63 64 63 63 RH..............71 62 54 48 42 41 39 40 43 43 EYE LVL WND DIR.NE E E E E E E E E E EYE LVL WND SPD.6 6 6 7 8 9 10 10 10 10 EYE LVL WND GST.10 10 15 15 15 20 20 25 25 25 MIX HGT (KFT)...2.2 2.7 3.4 4.0 4.7 5.0 5.2 5.4 5.0 4.6 MIXNG WIND DIR..NE E E E E SE SE SE SE E MIXNG WIND SPD..16 15 14 13 12 12 13 14 15 17 HAINES INDEX....4 4 4 5 5 5 4 4 4 5 .TONIGHT... SKY/WEATHER.........CLOUDY (85-95 PERCENT). RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING...THEN RAIN SHOWERS AFTER MIDNIGHT. MIN TEMPERATURE.....AROUND 43. MAX HUMIDITY........93 PERCENT. WIND (EYE LEVEL)....NORTH WINDS 5 TO 12 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......4100 FT AGL DECREASING TO 1900 FT AGL EARLY IN THE EVENING. MIXING WINDS........NORTHEAST 16 TO 22 MPH. SMOKE DISPERSAL.....GOOD (66400 KNOT-FT) DECREASING TO POOR (11400 KNOT-FT) IN THE LATE EVENING AND OVERNIGHT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........84 89 95 100 95 88 WEATHER COV.....LIKELY LIKELY LIKELY DEFNTE DEFNTE DEFNTE WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............61 56 52 50 47 46 RH..............48 64 74 83 89 89 EYE LEVEL WIND..E 10 E 9 E 9 NE 10 NE 6 N 5 EYE LEVEL WIND..20 20 20 20 15 MIX HGT (FT)....4100 1900 700 700 700 600 MIXNG WIND......E 18 E 17 E 17 E 18 NE 16 NE 18 HAINES INDEX....5 5 4 3 3 3 .FRIDAY... SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT). MAX TEMPERATURE.....AROUND 53. MIN HUMIDITY........48 PERCENT. WIND (EYE LEVEL)....NORTHWEST WINDS 5 TO 14 MPH INCREASING TO 17 TO 24 MPH LATE IN THE MORNING. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1900 FT AGL INCREASING TO 5400 FT AGL. MIXING WINDS........NORTHEAST 15 TO 23 MPH SHIFTING TO THE NORTHWEST 12 TO 18 MPH LATE IN THE MORNING...THEN INCREASING TO WEST 22 TO 31 MPH IN THE AFTERNOON INCREASING TO AROUND 33 MPH LATE IN THE AFTERNOON. SMOKE DISPERSAL.....FAIR (45000 KNOT-FT) INCREASING TO EXCELLENT (158500 KNOT-FT). TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........83 61 39 44 WEATHER COV.....S CHC S CHC WEATHER TYPE....RNSHWR RNSHWR NONE NONE TEMP............43 47 49 52 RH..............93 74 63 52 EYE LEVEL WIND..N 4G5 NW 8G15 W 16G35 W 19G45 MIX HGT (FT)....300 1900 4300 4900 MIXNG WIND......NE 23 N 12 NW 18 W 28 HAINES INDEX....2 3 3 4 $$ FORECASTER...BEERENDS REQUESTED BY...JOHN MCCLEARY TYPE OF REQUEST...PRESCRIBED .TAG 20100506.SCHRA.01/DMX