FNUS73 KDMX 061141 FWSDMX SPOT FORECAST FOR BURR OAK...USFWS NATIONAL WEATHER SERVICE DES MOINES IA 641 AM CDT FRI MAY 6 2011 FORECAST IS BASED ON IGNITION TIME OF 1030 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... WESTERLY WINDS WILL BECOME MORE SOUTHWESTERLY TOWARD LATE TODAY AS AN AREA OF HIGH PRESSURE SLIDES BY THE STATE TO THE SOUTH. WINDS COULD BECOME GUSTY ACROSS THE WESTERN HALF OF THE CWA IN ADVANCE OF A LOW PRESSURE SYSTEM MOVING OUT OF THE NORTHERN ROCKIES AND INTO THE DAKOTAS. DRIER AIR IN PLACE...SO DEWPOINTS EXPECTED TO STAY LOWER OR DROP FURTHER INTO THE UPPER 20S TO LOWER 30S BY THIS AFTERNOON. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT). MAX TEMPERATURE.....AROUND 69. MIN HUMIDITY........23 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 8 TO 16 MPH. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1900 FT AGL INCREASING TO 4300 FT AGL LATE IN THE MORNING...THEN INCREASING TO 7300 FT AGL LATE IN THE MORNING DECREASING TO 5100 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........SOUTH 7 TO 16 MPH. SMOKE DISPERSAL.....FAIR (42900 KNOT-FT) INCREASING TO GOOD (80900 KNOT-FT) IN THE AFTERNOON. WIND (20 FT)........SOUTH WINDS 8 TO 16 MPH. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........41 42 43 44 47 54 57 58 59 WEATHER COV..... WEATHER TYPE.... TEMP............55 58 61 64 65 67 68 67 67 RH..............40 35 31 28 26 24 23 27 29 20 FT WIND DIR..W SW SW SW SW S S S S 20 FT WIND SPD..13 13 14 14 14 15 16 16 15 20 FT WIND GUST.15 15 20 20 20 20 25 25 20 EYE LVL WND DIR.W SW SW SW SW S S S S EYE LVL WND SPD.9 9 10 10 10 11 11 11 11 EYE LVL WND GST.15 15 20 20 20 20 25 25 20 MIX HGT (KFT)...2.8 4.3 5.8 7.3 7.1 6.9 6.7 5.9 5.1 MIXNG WIND DIR..W SW SW S S S S S S MIXNG WIND SPD..8 8 8 9 10 13 14 15 16 HAINES INDEX....5 5 5 5 5 6 6 6 5 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT). CHANCE OF RAIN SHOWERS AND ISOLATED THUNDERSTORMS IN THE EVENING...THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. MIN TEMPERATURE.....AROUND 48. MAX HUMIDITY........80 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 7 TO 15 MPH SHIFTING TO THE WEST AROUND 7 MPH EARLY IN THE MORNING. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......4300 FT AGL DECREASING TO 1600 FT AGL EARLY IN THE EVENING. MIXING WINDS........SOUTH 8 TO 16 MPH. SMOKE DISPERSAL.....GOOD (60600 KNOT-FT) DECREASING TO POOR (2800 KNOT-FT) IN THE LATE EVENING AND OVERNIGHT. WIND (20 FT)........SOUTH WINDS 7 TO 15 MPH SHIFTING TO THE WEST AROUND 7 MPH EARLY IN THE MORNING. 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 (%).........60 72 74 69 65 61 WEATHER COV.....CHANCE CHANCE CHANCE S CHC S CHC S CHC WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............65 60 56 54 51 50 RH..............34 46 57 66 74 80 20 FT WIND......S 15 S 13 S 10 S 8 S 7 S 7 20 FT WIND GUST.20 15 15 10 EYE LEVEL WIND..S 11 S 9 S 7 S 6 S 5 S 5 EYE LEVEL WIND..20 15 15 10 MIX HGT (FT)....4300 1600 300 300 300 300 MIXNG WIND......S 16 SE 13 SE 12 SE 13 S 10 S 8 HAINES INDEX....5 4 4 3 3 3 .SATURDAY... SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT). MAX TEMPERATURE.....AROUND 69. MIN HUMIDITY........42 PERCENT. EYE LEVEL WINDS.....NORTH WINDS 7 TO 12 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1100 FT AGL INCREASING TO 7300 FT AGL. MIXING WINDS........SOUTHWEST 8 TO 9 MPH SHIFTING TO THE NORTHWEST 12 TO 17 MPH EARLY IN THE MORNING. SMOKE DISPERSAL.....POOR (8400 KNOT-FT) INCREASING TO EXCELLENT (99000 KNOT-FT). WIND (20 FT)........NORTH WINDS 7 TO 12 MPH. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........57 52 46 43 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............50 59 65 68 RH..............80 60 48 42 20 FT WIND......NW 7 NW 12G15 N 12G15 N 10G15 EYE LEVEL WIND..NW 5 NW 9G15 N 9G15 N 7G15 MIX HGT (FT)....300 1100 6600 7300 MIXNG WIND......SW 8 NW 14 NW 17 NW 14 HAINES INDEX....3 4 5 5 $$ FORECASTER...BEERENDS REQUESTED BY...CHAD LORETH TYPE OF REQUEST...PRESCRIBED .TAG 20110506.BURRO.01/DMX