FNUS73 KDMX 290044 FWSDMX SPOT FORECAST FOR THORN VALLEY...USFWS NATIONAL WEATHER SERVICE DES MOINES IA 644 PM CST WED NOV 28 2012 FORECAST IS BASED ON IGNITION TIME OF 1100 CST ON NOVEMBER 29. 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... DRY CONDITIONS EXPECTED THROUGH THE PERIOD...WITH SOUTHERLY WINDS BECOMING LIGHT AND VARIABLE THURSDAY NIGHT. DEWPOINTS EXPECTED TO INCREASE A BIT THROUGH THE DAY...WITH RH VALUES DROPPING TO AROUND 50 PERCENT IN THE MID AFTERNOON. .THURSDAY... SKY/WEATHER.........SUNNY (20-30 PERCENT). MAX TEMPERATURE.....AROUND 52. MIN HUMIDITY........52 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 6 TO 7 MPH. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1800 FT AGL INCREASING TO 2400 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........SOUTH 6 TO 13 MPH. SMOKE DISPERSAL.....POOR TO FAIR (1300-24000 KNOT-FT). WIND (20 FT)........SOUTH WINDS 6 TO 7 MPH. TIME (CST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM SKY (%).........10 13 18 21 22 23 24 26 29 33 36 39 WEATHER COV..... WEATHER TYPE.... TSTM COV........ TEMP............28 29 31 34 38 42 46 49 51 51 50 47 RH..............92 92 88 82 73 67 63 56 52 54 56 63 20 FT WIND DIR..S S S S S S S S S S S S 20 FT WIND SPD..6 6 7 7 7 7 7 7 7 7 7 6 20 FT WIND GUST. 10 10 10 10 10 10 10 EYE LVL WND DIR.S S S S S S S S S S S S EYE LVL WND SPD.4 4 5 5 5 5 5 5 5 5 5 4 EYE LVL WND GST. 10 10 10 10 10 10 10 MIX HGT (KFT)...0.3 0.3 0.3 0.3 0.4 0.5 0.6 1.2 1.8 2.4 1.7 1.0 MIXNG WIND DIR..S S S S S S SW S S S S S MIXNG WIND SPD..6 6 6 7 8 10 12 13 13 12 9 7 HAINES INDEX....3 3 3 3 3 3 3 3 3 3 3 3 .THURSDAY NIGHT... SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING MOSTLY CLOUDY (45-55 PERCENT). MIN TEMPERATURE.....AROUND 31. MAX HUMIDITY........96 PERCENT. EYE LEVEL WINDS.....SOUTHEAST WINDS 5 TO 6 MPH IN THE EVENING BECOMING LIGHT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......300 FT AGL. MIXING WINDS........EAST 2 TO 5 MPH. SMOKE DISPERSAL.....POOR TO POOR (500-1000 KNOT-FT). WIND (20 FT)........SOUTHEAST WINDS 5 TO 6 MPH IN THE EVENING BECOMING LIGHT. TIME (CST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM SKY (%).........41 42 44 46 47 49 50 50 51 51 52 52 WEATHER COV..... WEATHER TYPE.... TSTM COV........ TEMP............45 42 40 39 38 38 37 36 35 35 34 34 RH..............68 73 79 82 82 82 85 85 89 85 89 89 20 FT WIND DIR..SE SE SE SE SE SE SE S S S SW NW 20 FT WIND SPD..6 5 5 5 5 5 5 3 2 1 1 1 20 FT WIND GUST. 5 5 5 5 5 EYE LVL WND DIR.SE SE SE SE SE SE SE S S S SW NW EYE LVL WND SPD.4 4 4 4 4 4 4 2 1 1 1 1 EYE LVL WND GST. 5 5 5 5 5 MIX HGT (KFT)...0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 MIXNG WIND DIR..S S S S S S S S S SE SE E MIXNG WIND SPD..5 3 3 3 3 2 2 2 2 2 2 2 HAINES INDEX....3 3 4 4 4 5 5 5 5 5 5 4 $$ FORECASTER...BEERENDS REQUESTED BY...RICHARD HAGER TYPE OF REQUEST...PRESCRIBED .TAG 20121129.THORN.01/DMX