FNUS73 KDMX 041144 FWSDMX SPOT FORECAST FOR DETERMAN...USFWS NATIONAL WEATHER SERVICE DES MOINES IA 644 AM CDT WED MAY 4 2011 FORECAST IS BASED ON IGNITION TIME OF 0905 CDT ON MAY 04. 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 WILL SLIDE EAST TODAY...WITH WINDS SHIFTING AROUND TO THE SOUTHEAST. WINDS ARE EXPECTED TO PICK UP BY THE LATE MORNING AND AFTERNOON HOURS DUE TO AN APPROACHING AREA OF LOW PRESSURE. CLOUDS WILL INCREASE ACROSS THE STATE TODAY. DRIER AIR STILL IN PLACE ALOFT...SO EXPECT DEWPOINTS TO DROP INTO THE 20S ACROSS PORTIONS OF THE CWA THIS AFTERNOON...ESPECIALLY ACROSS THE EASTERN CWA. .TODAY... SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT). MAX TEMPERATURE.....AROUND 67. MIN HUMIDITY........27 PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2400 FT AGL INCREASING TO 3700 FT AGL IN THE LATE MORNING AND AFTERNOON. MIXING WINDS........SOUTHEAST 10 TO 15 MPH INCREASING TO 20 TO 29 MPH EARLY IN THE MORNING. SMOKE DISPERSAL.....FAIR (40400 KNOT-FT) INCREASING TO GOOD (87700 KNOT-FT) IN THE LATE MORNING AND AFTERNOON. WIND (20 FT)........SOUTHEAST WINDS 10 TO 16 MPH INCREASING TO 20 TO 24 MPH IN THE LATE MORNING AND AFTERNOON. TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........51 54 57 60 62 65 70 73 76 82 WEATHER COV..... WEATHER TYPE.... TEMP............50 54 57 59 62 63 65 66 65 65 RH..............41 35 32 30 27 27 27 27 29 30 20 FT WIND DIR..SE SE SE SE SE SE SE SE SE SE 20 FT WIND SPD..16 20 22 23 24 24 24 24 24 23 20 FT WIND GUST.25 30 30 30 30 30 30 30 30 30 MIX HGT (KFT)...2.4 3.2 3.2 3.3 3.4 3.5 3.6 3.7 3.4 3.1 MIXNG WIND DIR..SE SE SE SE SE SE SE SE SE SE MIXNG WIND SPD..20 24 26 26 26 26 28 28 29 29 HAINES INDEX....4 4 4 4 4 4 4 4 4 4 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). RAIN SHOWERS LIKELY AND ISOLATED THUNDERSTORMS IN THE EVENING. MIN TEMPERATURE.....AROUND 46. MAX HUMIDITY........80 PERCENT. WIND (20 FT)........SOUTH WINDS 13 TO 22 MPH SHIFTING TO THE WEST 10 TO 13 MPH AFTER MIDNIGHT. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE EVENING. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........85 86 88 89 78 65 WEATHER COV.....LIKELY LIKELY LIKELY WEATHER TYPE....RNSHWR RNSHWR RNSHWR NONE NONE NONE TEMP............63 58 54 52 50 48 RH..............34 45 59 71 74 80 20 FT WIND......SE 22 SE 18 S 16 S 13 SW 10 SW 12 20 FT WIND GUST.30 25 25 15 15 15 .THURSDAY... SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). MAX TEMPERATURE.....AROUND 64. MIN HUMIDITY........38 PERCENT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2300 FT AGL INCREASING TO 8600 FT AGL. MIXING WINDS........NORTHWEST 18 TO 24 MPH. SMOKE DISPERSAL.....GOOD (64700 KNOT-FT) INCREASING TO EXCELLENT (180300 KNOT-FT). WIND (20 FT)........NORTHWEST WINDS 14 TO 16 MPH. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........55 55 56 54 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............48 55 61 63 RH..............77 57 44 39 20 FT WIND......W 14G20 NW 16G25 NW 16G25 NW 15G20 MIX HGT (FT)....1200 4400 6800 8600 MIXNG WIND......W 18 NW 24 NW 23 NW 24 HAINES INDEX....3 3 4 4 $$ FORECASTER...BEERENDS REQUESTED BY...BLAKE KNISLEY TYPE OF REQUEST...PRESCRIBED .TAG 20110504.DETER.01/DMX