FNUS73 KDMX 281016 FWSDMX SPOT FORECAST FOR PLC...USFWS NATIONAL WEATHER SERVICE DES MOINES IA 416 AM CST WED NOV 28 2012 FORECAST IS BASED ON IGNITION TIME OF 1100 CST ON NOVEMBER 28. 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 BE IN PLACE TODAY BUT AN INVERSION WILL PRODUCE MARGINAL TO POOR MIXING HEIGHTS AND SMOKE DISPERSAL. THE WIND WILL BECOME SOUTHERLY AROUND 10 MPH THIS AFTERNOON. .TODAY... SKY/WEATHER.........SUNNY (10-20 PERCENT). MAX TEMPERATURE.....AROUND 44. MIN HUMIDITY........46 PERCENT. EYE LEVEL WINDS.....NORTHWEST WINDS AROUND 6 MPH EARLY IN THE MORNING BECOMING LIGHT...THEN BECOMING SOUTH 5 TO 10 MPH LATE IN THE MORNING. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2200 FT AGL INCREASING TO 2300 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........NORTHEAST 3 TO 5 MPH SHIFTING TO THE SOUTH 5 TO 13 MPH LATE IN THE MORNING. SMOKE DISPERSAL.....POOR TO FAIR (800-25200 KNOT-FT). WIND (20 FT)........NORTHWEST WINDS AROUND 6 MPH EARLY IN THE MORNING BECOMING LIGHT...THEN BECOMING SOUTH 5 TO 10 MPH LATE IN THE MORNING. TIME (CST) 11A 12P 1PM 2PM 3PM 4PM 5PM SKY (%).........13 14 16 19 21 21 22 WEATHER COV..... WEATHER TYPE.... TSTM COV........ TEMP............36 39 42 43 43 42 41 RH..............59 52 46 47 47 48 52 20 FT WIND DIR..SE S S S S S S 20 FT WIND SPD..5 7 8 9 10 10 9 20 FT WIND GUST. 10 10 15 10 EYE LVL WND DIR.SE S S S S S S EYE LVL WND SPD.4 5 6 6 7 7 6 EYE LVL WND GST. 10 10 15 10 MIX HGT (KFT)...1.4 2.0 2.1 2.2 2.3 1.6 0.9 MIXNG WIND DIR..SE S S S S S S MIXNG WIND SPD..5 6 8 12 13 12 9 HAINES INDEX....4 4 4 4 4 4 4 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT). MIN TEMPERATURE.....AROUND 29. MAX HUMIDITY........96 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 7 TO 8 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......300 FT AGL. MIXING WINDS........SOUTH 6 TO 10 MPH. SMOKE DISPERSAL.....POOR TO POOR (1300-2300 KNOT-FT). WIND (20 FT)........SOUTH WINDS 7 TO 8 MPH. TIME (CST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........23 21 17 15 17 19 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TSTM COV........ TEMP............38 35 34 33 31 30 RH..............59 66 69 75 81 85 20 FT WIND......S 8 S 8 S 8 S 8 S 7 S 7 20 FT WIND GUST.10 10 10 10 10 EYE LEVEL WIND..S 6 S 6 S 6 S 6 S 5 S 5 EYE LVL WND GST.10 10 10 10 10 MIX HGT (FT)....300 300 300 300 300 300 MIXNG WIND......S 8 S 9 S 10 S 10 S 8 S 6 HAINES INDEX....4 4 4 5 4 4 $$ FORECASTER...BOKSA REQUESTED BY...RICHARD HAGER TYPE OF REQUEST...PRESCRIBED .TAG 20121128.PLC__.01/DMX