FNUS73 KDMX 240210 FWSDMX SPOT FORECAST FOR BLACKHAWK MARSH...USFWS NATIONAL WEATHER SERVICE DES MOINES IA 910 PM CDT MON APR 23 2012 FORECAST IS BASED ON IGNITION TIME OF 1300 CDT ON APRIL 24. 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 WILL EXIT THE REGION TONIGHT. A WARM FRONT WILL APPROACH BY TUESDAY AFTERNOON WITH INCREASING EAST SOUTHEAST WINDS BY LATE AFTERNOON. NO RAINFALL IS EXPECTED. .TUESDAY... SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT). MAX TEMPERATURE.....AROUND 80. MIN HUMIDITY........35 PERCENT. EYE LEVEL WINDS.....EAST WINDS 6 TO 8 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2100 FT AGL INCREASING TO 3500 FT AGL IN THE AFTERNOON...THEN DECREASING TO 1300 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........SOUTHWEST 7 TO 9 MPH SHIFTING TO THE NORTH 3 TO 9 MPH LATE IN THE MORNING. SMOKE DISPERSAL.....POOR TO FAIR (2000-28300 KNOT-FT). WIND (20 FT)........EAST WINDS 6 TO 8 MPH. TIME (CDT) 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........20 21 23 25 27 29 WEATHER COV..... WEATHER TYPE.... TSTM COV........ TEMP............73 75 77 79 78 78 RH..............41 38 37 35 36 37 20 FT WIND DIR..SE E E E E E 20 FT WIND SPD..7 6 6 6 7 7 20 FT WIND GUST. EYE LVL WND DIR.SE E E E E E EYE LVL WND SPD.5 4 4 4 5 5 EYE LVL WND GST. MIX HGT (KFT)...2.6 2.9 3.2 3.5 2.4 1.3 MIXNG WIND DIR..N N N N N N MIXNG WIND SPD..3 5 7 9 9 8 HAINES INDEX....5 5 5 5 5 5 .TUESDAY NIGHT... SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING MOSTLY CLOUDY (50-60 PERCENT). MIN TEMPERATURE.....AROUND 58. MAX HUMIDITY........72 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 7 TO 9 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......300 FT AGL. MIXING WINDS........SOUTH 7 TO 9 MPH. SMOKE DISPERSAL.....POOR TO POOR (1400-2000 KNOT-FT). WIND (20 FT)........SOUTH WINDS 7 TO 9 MPH. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........30 35 41 46 50 56 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TSTM COV........ TEMP............76 71 67 65 62 61 RH..............40 47 56 60 67 70 20 FT WIND......E 8 E 9 SE 8 SE 8 SE 8 S 7 20 FT WIND GUST.10 10 10 10 10 EYE LEVEL WIND..E 6 E 6 SE 6 SE 6 SE 6 S 5 EYE LVL WND GST.10 10 10 10 10 MIX HGT (FT)....300 300 300 300 300 300 MIXNG WIND......NE 7 E 7 SE 8 SE 9 S 8 S 8 HAINES INDEX....5 5 5 4 4 4 .WEDNESDAY... SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). MAX TEMPERATURE.....AROUND 83. MIN HUMIDITY........38 PERCENT. EYE LEVEL WINDS.....NORTHWEST WINDS 7 TO 12 MPH. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1300 FT AGL INCREASING TO 3800 FT AGL EARLY IN THE AFTERNOON...THEN INCREASING TO 6400 FT AGL EARLY IN THE AFTERNOON INCREASING TO 8900 FT AGL LATE IN THE AFTERNOON DECREASING TO 6000 FT AGL DECREASING TO 3100 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........SOUTHWEST 9 TO 13 MPH SHIFTING TO THE NORTHWEST 15 TO 24 MPH LATE IN THE MORNING. SMOKE DISPERSAL.....POOR TO POOR (2000-12300 KNOT-FT) INCREASING TO GOOD TO EXCELLENT (56000-186800 KNOT-FT). WIND (20 FT)........NORTHWEST WINDS 7 TO 12 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........60 62 64 55 WEATHER COV.....S CHC S CHC S CHC S CHC WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR TSTM COV........S CHC S CHC S CHC S CHC TEMP............60 71 78 82 RH..............72 55 47 38 20 FT WIND......S 7 SW 7 W 7 NW 9G10 EYE LEVEL WIND..S 5 SW 5 W 5 NW 6G10 MIX HGT (FT)....300 300 1300 8900 MIXNG WIND......S 9 SW 12 NW 17 NW 24 HAINES INDEX....4 4 5 6 $$ FORECASTER...VACHALEK REQUESTED BY...CHAD LORETH TYPE OF REQUEST...PRESCRIBED .TAG 20120424.BLACK.01/DMX