FNUS73 KDMX 051531 FWSDMX SPOT FORECAST FOR BLUESTEM WPA...USFWS NATIONAL WEATHER SERVICE DES MOINES IA 1031 AM CDT TUE MAY 5 2009 FORECAST IS BASED ON IGNITION TIME OF 1200 CDT ON MAY 05. 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... BROAD SOUTH TO SOUTHWESTERLY FLOW WILL CONTINUE TODAY AHEAD OF A COLD FRONT MOVING TOWARD THE REGION. THE AIRMASS WILL BE WEAKLY UNSTABLE TODAY AND TONIGHT...YIELDING A THREAT FOR SHOWERS AND THUNDERSTORMS. THE COLD FRONT WILL MOVE THROUGH THE REGION EARLY WEDNESDAY. .TODAY... SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). ISOLATED THUNDERSTORMS IN THE LATE MORNING AND EARLY AFTERNOON. SCATTERED RAIN SHOWERS IN THE LATE MORNING AND AFTERNOON. CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON. TEMPERATURE.........64 AT IGNITION...MAX 72. RH..................60 PERCENT AT IGNITION...MIN 47 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 9 TO 16 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......3600 FT AGL INCREASING TO 7800 FT AGL. MIXING WINDS........SOUTHWEST 18 TO 25 MPH. SMOKE DISPERSAL.....GOOD (52500 KNOT-FT) INCREASING TO EXCELLENT (163900 KNOT-FT). TIME (CDT) 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........76 76 73 67 64 75 86 WEATHER COV.....SCT CHC CHC CHC CHC CHC CHC WEATHER TYPE....RW RW RW RW RW RW RW TEMP............64 68 69 70 70 70 69 RH..............60 52 51 47 47 47 49 EYE LVL WND DIR.S S S S S S S EYE LVL WND SPD.12 12 12 12 12 11 10 EYE LVL WND GST.25 25 25 25 25 25 25 MIX HGT (KFT)...5.8 6.9 7.2 7.5 7.8 7.2 6.6 MIXNG WIND DIR..S S SW SW SW SW SW MIXNG WIND SPD..22 23 24 24 24 25 25 HAINES INDEX....4 4 4 4 4 4 5 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). SHOWERS AND THUNDERSTORMS LIKELY. TEMPERATURE.........MIN 53. RH..................MAX 83 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 6 TO 12 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......6000 FT AGL DECREASING TO 2200 FT AGL EARLY IN THE EVENING. MIXING WINDS........SOUTHWEST 17 TO 23 MPH BECOMING SOUTH 3 TO 12 MPH EARLY IN THE EVENING...THEN SHIFTING TO THE SOUTHWEST AROUND 13 MPH EARLY IN THE MORNING. SMOKE DISPERSAL.....EXCELLENT (120900 KNOT-FT) DECREASING TO POOR (4400 KNOT-FT) IN THE LATE EVENING AND OVERNIGHT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........92 91 89 87 85 83 WEATHER COV.....LIKELY LIKELY LIKELY LIKELY LIKELY LIKELY WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............69 64 61 59 56 55 RH..............49 58 62 67 77 80 EYE LEVEL WIND..S 10 S 7 S 6 SW 7 S 7 S 6 EYE LEVEL WIND..20 15 15 15 15 10 MIX HGT (FT)....6000 2200 300 300 400 400 MIXNG WIND......SW 23 SW 10 S 3 S 8 S 10 SW 13 HAINES INDEX....5 5 5 4 4 4 .WEDNESDAY... SKY/WEATHER.........PARTLY SUNNY (65-75 PERCENT). CHANCE OF SHOWERS AND THUNDERSTORMS. TEMPERATURE.........MAX 70. RH..................MIN 47 PERCENT. EYE LEVEL WINDS.....SOUTHWEST WINDS 6 TO 10 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1200 FT AGL INCREASING TO 6000 FT AGL. MIXING WINDS........SOUTHWEST 14 TO 22 MPH SHIFTING TO THE WEST 12 TO 15 MPH LATE IN THE AFTERNOON. SMOKE DISPERSAL.....EXCELLENT (61500 KNOT-FT) INCREASING TO EXCELLENT (78200 KNOT-FT) IN THE AFTERNOON. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........81 79 77 64 WEATHER COV.....CHANCE CHANCE CHANCE CHANCE WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR TEMP............55 62 67 69 RH..............83 65 54 47 EYE LEVEL WIND..S 5G10 W 8G15 SE 8G15 SW 7G15 MIX HGT (FT)....300 1200 4300 6000 MIXNG WIND......SW 14 S 20 S 21 W 12 HAINES INDEX....4 3 3 3 $$ FORECASTER...MOYER REQUESTED BY...RICHARD R JOHNSON TYPE OF REQUEST...PRESCRIBED .TAG 20090505.BLUES.01/DMX