FNUS73 KDMX 211547 FWSDMX SPOT FORECAST FOR SILVER LAKE TATMAN TRACT...IOWA DNR-USFWS NATIONAL WEATHER SERVICE DES MOINES IA 947 AM CST WED NOV 21 2012 FORECAST IS BASED ON IGNITION TIME OF 1300 CST ON NOVEMBER 21. 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... ABOVE NORMAL TEMPERATURES WITH GUSTY SOUTHWEST WINDS ARE FORECAST TODAY. MIXING WILL CONTINUE TO DEEPEN AND WINDS WILL INCREASE LATE THIS MORNING TO 15 TO 25 MPH AND GUSTS TO NEAR 30 MPH DURING THE AFTERNOON HOURS. .TODAY... SKY/WEATHER.........SUNNY (0-10 PERCENT). TEMPERATURE.........67 AT IGNITION...MAX 69. RH..................39 PERCENT AT IGNITION...MIN 39 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 15 TO 22 MPH. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1900 FT AGL. MIXING WINDS........SOUTH 13 TO 17 MPH INCREASING TO 23 TO 28 MPH LATE IN THE MORNING. SMOKE DISPERSAL.....POOR TO GOOD (2700-42400 KNOT-FT). WIND (20 FT)........WINDS SOUTHWEST AT 22 MPH AT IGNITION...OTHERWISE SOUTH WINDS 15 TO 22 MPH. TIME (CST) 1PM 2PM 3PM 4PM 5PM SKY (%).........5 6 7 8 9 WEATHER COV..... WEATHER TYPE.... TSTM COV........ TEMP............67 68 68 67 64 RH..............39 39 39 40 46 20 FT WIND DIR..SW SW S S S 20 FT WIND SPD..22 22 21 18 16 20 FT WIND GUST.30 30 30 25 25 EYE LVL WND DIR.SW SW S S S EYE LVL WND SPD.16 16 15 13 11 EYE LVL WND GST.30 30 30 25 25 MIX HGT (KFT)...1.7 1.8 1.9 1.5 1.1 MIXNG WIND DIR..SW SW S S S MIXNG WIND SPD..28 26 25 25 25 HAINES INDEX....6 5 5 5 5 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT). TEMPERATURE.........MIN 46. RH..................MAX 86 PERCENT. EYE LEVEL WINDS.....SOUTHWEST WINDS 14 TO 16 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......600 FT AGL. MIXING WINDS........SOUTH 15 TO 24 MPH SHIFTING TO THE SOUTHWEST AROUND 14 MPH EARLY IN THE MORNING. SMOKE DISPERSAL.....POOR TO FAIR (2900-13000 KNOT-FT). WIND (20 FT)........SOUTHWEST WINDS 14 TO 16 MPH. TIME (CST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........9 15 17 19 22 27 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TSTM COV........ TEMP............60 55 52 51 49 48 RH..............53 64 71 74 80 83 20 FT WIND......S 15 S 15 S 16 S 16 SW 15 SW 14 20 FT WIND GUST.20 20 20 20 20 20 EYE LEVEL WIND..S 11 S 11 S 11 S 11 SW 11 SW 10 EYE LVL WND GST.20 20 20 20 20 20 MIX HGT (FT)....600 400 300 300 300 300 MIXNG WIND......S 24 S 21 S 18 S 17 S 16 S 15 HAINES INDEX....5 4 4 5 5 5 .THANKSGIVING DAY... SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). TEMPERATURE.........MAX 57. RH..................MIN 47 PERCENT. EYE LEVEL WINDS.....NORTHWEST WINDS 14 TO 22 MPH. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2200 FT AGL INCREASING TO 4900 FT AGL IN THE AFTERNOON. MIXING WINDS........SOUTHWEST 13 TO 20 MPH INCREASING TO NORTHWEST 24 TO 32 MPH LATE IN THE MORNING...THEN INCREASING TO 35 TO 38 MPH EARLY IN THE AFTERNOON. SMOKE DISPERSAL.....POOR TO GOOD (2800-46500 KNOT-FT) INCREASING TO EXCELLENT TO EXCELLENT (149300-151500 KNOT-FT). WIND (20 FT)........NORTHWEST WINDS 14 TO 22 MPH WITH GUSTS TO AROUND 35 MPH. TIME (CST) 6 AM 9 AM NOON 3 PM SKY (%).........30 36 41 39 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TSTM COV........ TEMP............46 47 56 53 RH..............86 76 49 48 20 FT WIND......SW 14G20 W 17G25 W 22G30 NW 22G35 EYE LEVEL WIND..SW 10G20 W 12G25 W 16G30 NW 16G35 MIX HGT (FT)....300 300 3200 4900 MIXNG WIND......SW 13 SW 16 NW 29 NW 36 HAINES INDEX....5 6 3 3 $$ FORECASTER...PODRAZIK REQUESTED BY...STEVE WOODRUFF TYPE OF REQUEST...PRESCRIBED .TAG 20121121.SILVE.01/DMX