FNUS73 KDMX 071211 FWSDMX SPOT FORECAST FOR BISON...USFWS NATIONAL WEATHER SERVICE DES MOINES IA 711 AM CDT THU MAY 7 2009 FORECAST IS BASED ON IGNITION TIME OF 0800 CDT ON MAY 07. 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... SHOWERS AND SCATTERED THUNDERSTORMS WILL BE POSSIBLE TODAY AS AN UPPER LEVEL DISTURBANCE TRACKS EAST ACROSS THE STATE TODAY. THE WAVE WILL BE EXITING THE REGION BY LATE THIS AFTERNOON WITH CLEARING SKIES AND LIGHT WINDS EXPECTED THIS EVENING. .TODAY... SKY/WEATHER.........PARTLY SUNNY (65-75 PERCENT). SCATTERED SHOWERS AND THUNDERSTORMS. MAX TEMPERATURE.....AROUND 70. MIN HUMIDITY........49 PERCENT. EYE LEVEL WINDS.....NORTHWEST WINDS 5 TO 6 MPH UNTIL LATE AFTERNOON BECOMING LIGHT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1700 FT AGL INCREASING TO 4300 FT AGL LATE IN THE MORNING...THEN DECREASING TO 1600 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........WEST 10 TO 16 MPH INCREASING TO NORTHWEST 21 TO 25 MPH EARLY IN THE MORNING...THEN BECOMING NORTH 5 TO 14 MPH LATE IN THE MORNING SHIFTING TO THE EAST 2 TO 3 MPH EARLY IN THE AFTERNOON. SMOKE DISPERSAL.....GOOD (30200 KNOT-FT). TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........56 62 68 74 79 82 81 78 75 72 69 WEATHER COV.....SCT SCT SCT SCT SCT SCT SCT SCT SCT SCT SCT WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW TEMP............56 59 62 64 65 67 68 69 69 69 68 RH..............83 75 65 60 58 54 51 49 49 49 51 EYE LVL WND DIR.W W W W W W NW N NE E SE EYE LVL WND SPD.4 5 5 5 5 5 4 2 2 2 2 EYE LVL WND GST.10 10 10 10 10 10 10 5 5 5 5 MIX HGT (KFT)...0.4 0.6 0.8 1.7 2.5 3.3 3.7 4.0 4.3 3.0 1.6 MIXNG WIND DIR..W W W NW N N N N NE NE E MIXNG WIND SPD..16 22 25 21 14 7 5 3 3 2 2 HAINES INDEX....5 4 4 4 3 3 3 4 4 4 4 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT). MIN TEMPERATURE.....AROUND 51. MAX HUMIDITY........83 PERCENT. EYE LEVEL WINDS.....LIGHT WINDS BECOMING NORTHEAST 5 TO 6 MPH EARLY IN THE EVENING...THEN BECOMING LIGHT EARLY IN THE MORNING. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......300 FT AGL. MIXING WINDS........NORTHEAST 2 TO 5 MPH. SMOKE DISPERSAL.....POOR (1000 KNOT-FT). TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........67 54 52 51 52 55 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............68 63 59 57 54 53 RH..............51 60 69 75 80 83 EYE LEVEL WIND..S 2 E 4 NE 5 NE 4 NE 4 NE 4 EYE LEVEL WIND..5 5 5 5 5 MIX HGT (FT)....300 300 300 300 300 300 MIXNG WIND......E 2 E 3 E 3 E 5 E 3 NE 3 HAINES INDEX....4 3 3 3 3 3 .FRIDAY... SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT). CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 73. MIN HUMIDITY........44 PERCENT. EYE LEVEL WINDS.....LIGHT WINDS BECOMING EAST AROUND 5 MPH EARLY IN THE MORNING...THEN BECOMING LIGHT IN THE LATE MORNING AND AFTERNOON BECOMING NORTH AROUND 6 MPH LATE IN THE AFTERNOON. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1700 FT AGL INCREASING TO 4500 FT AGL LATE IN THE MORNING...THEN INCREASING TO 6400 FT AGL IN THE AFTERNOON DECREASING TO 4100 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........EAST 5 TO 9 MPH SHIFTING TO THE SOUTHWEST 13 TO 20 MPH EARLY IN THE MORNING. SMOKE DISPERSAL.....FAIR (16200 KNOT-FT) INCREASING TO EXCELLENT (82800 KNOT-FT) IN THE LATE MORNING AND AFTERNOON. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........63 66 63 65 WEATHER COV.....S CHC S CHC CHANCE CHANCE WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR TEMP............53 63 69 72 RH..............80 58 47 44 EYE LEVEL WIND..NE 3G5 E 4G5 S 0 W 2 MIX HGT (FT)....300 1700 5900 6400 MIXNG WIND......E 5 SE 20 SE 16 SW 13 HAINES INDEX....3 3 3 3 $$ FORECASTER...VACHALEK REQUESTED BY...JAMES KRIZMAN TYPE OF REQUEST...PRESCRIBED .TAG 20090507.BISON.01/DMX