FNUS73 KDMX 100958 FWSDMX SPOT FORECAST FOR PLC PART DEUX...USFWS NATIONAL WEATHER SERVICE DES MOINES IA 458 AM CDT SAT APR 10 2010 FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON APRIL 10. 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... WINDS WILL TURN THROUGH NORTH TO NORTHEAST BY THIS AFTERNOON WITH SPEEDS OF GENERALLY 10 KNOTS OR LESS. A FEW HIGHER GUSTS WILL BE POSSIBLE AFTER SUNRISE. NO PRECIPITATION IS EXPECTED. .TODAY... SKY/WEATHER.........SUNNY (20-30 PERCENT). TEMPERATURE.........54 AT IGNITION...MAX 69. MIN HUMIDITY........59 PERCENT AT IGNITION...MIN 36 PERCENT. WIND (EYE LEVEL)....WEST WINDS AROUND 5 MPH EARLY IN THE MORNING BECOMING LIGHT...THEN BECOMING NORTHWEST AROUND 5 MPH LATE IN THE AFTERNOON. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1900 FT AGL INCREASING TO 4200 FT AGL LATE IN THE MORNING...THEN INCREASING TO 5800 FT AGL EARLY IN THE AFTERNOON DECREASING TO 2100 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........WEST 5 TO 8 MPH SHIFTING TO THE EAST 6 TO 14 MPH EARLY IN THE MORNING...THEN DECREASING TO 2 TO 5 MPH IN THE AFTERNOON. SMOKE DISPERSAL.....POOR (20700 KNOT-FT). TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........23 31 38 43 43 43 44 44 44 WEATHER COV..... WEATHER TYPE.... TEMP............54 57 61 64 66 68 69 69 65 RH..............59 53 46 41 38 37 36 36 43 EYE LVL WND DIR.E NE NW W SW SW SW SW NW EYE LVL WND SPD.2 2 2 2 2 2 2 2 4 EYE LVL WND GST. 5 5 5 5 MIX HGT (KFT)...1.2 1.9 2.6 3.4 4.2 5.0 5.8 3.9 2.1 MIXNG WIND DIR..NE NE E E E SE SE SE E MIXNG WIND SPD..14 13 9 6 3 2 2 3 5 HAINES INDEX....4 4 5 5 5 5 5 5 4 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING MOSTLY CLOUDY (50-60 PERCENT). MIN TEMPERATURE.....45. MAX HUMIDITY........86 PERCENT. WIND (EYE LEVEL)....NORTHEAST WINDS 6 TO 7 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......300 FT AGL. MIXING WINDS........EAST 7 TO 12 MPH. SMOKE DISPERSAL.....POOR (2500 KNOT-FT). TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........44 57 61 61 53 52 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............63 56 51 50 48 45 RH..............46 59 74 77 80 86 EYE LEVEL WIND..N 6 N 5 NE 5 NE 5 NE 5 NE 5 EYE LEVEL WIND..10 10 10 10 10 MIX HGT (FT)....300 300 300 300 300 300 MIXNG WIND......E 7 NE 9 NE 9 NE 10 E 12 E 10 HAINES INDEX....4 4 4 4 3 3 .SUNDAY... SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT). MAX TEMPERATURE.....66. MIN HUMIDITY........38 PERCENT. WIND (EYE LEVEL)....EAST WINDS 6 TO 10 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2000 FT AGL INCREASING TO 5100 FT AGL. MIXING WINDS........EAST 10 TO 18 MPH. SMOKE DISPERSAL.....GOOD (56000 KNOT-FT) INCREASING TO GOOD (76700 KNOT-FT) IN THE AFTERNOON. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........58 55 60 66 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............46 57 65 63 RH..............79 57 40 43 EYE LEVEL WIND..NE 5 E 6G15 E 8G15 E 8G15 MIX HGT (FT)....300 2000 5100 4300 MIXNG WIND......NE 10 E 17 E 15 E 16 HAINES INDEX....3 3 3 4 $$ FORECASTER...LEE REQUESTED BY...JAMES KRIZMAN TYPE OF REQUEST...PRESCRIBED .TAG 20100410.PLCPA.01/DMX