FNUS73 KDMX 162156 FWSDMX SPOT FORECAST FOR PILOT KNOB-JOHNSON...IA DNR NATIONAL WEATHER SERVICE DES MOINES IA 456 PM CDT MON APR 16 2012 FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON APRIL 17. 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... WINDS WILL TURN TO SOUTHERLY AND INCREASE GRADUALLY ON TUESDAY MORNING...REACHING SPEEDS OF 10 TO 15 MPH WITH OCCASIONAL HIGHER GUSTS BY AFTERNOON. RELATIVE HUMIDITY WILL DECREASE AFTER SUNRISE...BOTTOMING OUT AT 40 TO 50 PERCENT AFTER NOON. THERE IS ALSO A SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE DAY. .TUESDAY... SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). TEMPERATURE.........49 AT IGNITION...MAX 65. RH..................58 PERCENT AT IGNITION...MIN 44 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 6 TO 15 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2100 FT AGL INCREASING TO 7000 FT AGL. MIXING WINDS........SOUTHWEST 6 TO 14 MPH INCREASING TO SOUTH 16 TO 25 MPH EARLY IN THE AFTERNOON. SMOKE DISPERSAL.....POOR TO GOOD (1300-51300 KNOT-FT) INCREASING TO EXCELLENT TO EXCELLENT (72700-128300 KNOT-FT) IN THE AFTERNOON. WIND (20 FT)........WINDS SOUTH AT 10 MPH AT IGNITION...OTHERWISE SOUTH WINDS 6 TO 15 MPH. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........47 49 52 53 55 59 63 67 71 WEATHER COV..... WEATHER TYPE.... TSTM COV........ TEMP............49 53 56 59 61 63 64 64 64 RH..............58 52 49 45 44 44 45 45 46 20 FT WIND DIR..S S S S S S S S S 20 FT WIND SPD..10 12 13 13 13 14 14 14 15 20 FT WIND GUST.15 15 15 15 15 20 20 20 20 EYE LVL WND DIR.S S S S S S S S S EYE LVL WND SPD.7 9 9 9 9 10 10 10 11 EYE LVL WND GST.15 15 15 15 15 20 20 20 20 MIX HGT (KFT)...3.0 4.2 5.4 6.6 6.7 6.9 7.0 6.5 5.9 MIXNG WIND DIR..SW SW SW SW SW S S S S MIXNG WIND SPD..8 9 10 13 14 16 18 22 25 HAINES INDEX....4 4 3 3 3 3 3 3 3 .TUESDAY NIGHT... SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING...THEN SHOWERS AND THUNDERSTORMS LIKELY AFTER MIDNIGHT. TEMPERATURE.........MIN 52. RH..................MAX 80 PERCENT. EYE LEVEL WINDS.....SOUTHWEST WINDS 12 TO 15 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......5400 FT AGL DECREASING TO 2200 FT AGL EARLY IN THE EVENING. MIXING WINDS........SOUTH 18 TO 26 MPH SHIFTING TO THE SOUTHWEST 24 TO 28 MPH EARLY IN THE MORNING. SMOKE DISPERSAL.....GOOD TO EXCELLENT (40500-123400 KNOT-FT) DECREASING TO POOR TO FAIR (6000-21300 KNOT-FT) IN THE LATE EVENING AND OVERNIGHT. WIND (20 FT)........SOUTHWEST WINDS 12 TO 15 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........73 77 83 87 84 80 WEATHER COV.....CHANCE CHANCE CHANCE LIKELY LIKELY LIKELY WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TSTM COV........CHANCE CHANCE CHANCE LIKELY LIKELY LIKELY TEMP............63 60 58 56 55 54 RH..............48 58 64 69 69 74 20 FT WIND......S 15 S 14 S 14 S 13 S 13 SW 13 20 FT WIND GUST.20 20 20 15 15 15 EYE LEVEL WIND..S 11 S 10 S 10 S 9 S 9 SW 9 EYE LVL WND GST.20 20 20 15 15 15 MIX HGT (FT)....5400 2200 800 1100 500 500 MIXNG WIND......S 26 S 21 S 18 S 23 S 26 SW 26 HAINES INDEX....3 4 4 4 4 4 .WEDNESDAY... SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT). CHANCE OF SHOWERS AND THUNDERSTORMS IN THE MORNING. TEMPERATURE.........MAX 69. RH..................MIN 37 PERCENT. EYE LEVEL WINDS.....NORTHWEST WINDS 12 TO 15 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2200 FT AGL INCREASING TO 7800 FT AGL. MIXING WINDS........NORTHWEST 13 TO 22 MPH. SMOKE DISPERSAL.....FAIR TO GOOD (21500-56200 KNOT-FT) INCREASING TO EXCELLENT TO EXCELLENT (73400-125300 KNOT-FT) IN THE LATE MORNING AND AFTERNOON. WIND (20 FT)........NORTHWEST WINDS 12 TO 15 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE MORNING. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........77 63 49 43 WEATHER COV.....CHANCE CHANCE WEATHER TYPE....RNSHWR RNSHWR NONE NONE TSTM COV........CHANCE CHANCE TEMP............53 60 66 68 RH..............80 64 47 37 20 FT WIND......SW 12G15 W 14G20 W 15G20 W 13G15 EYE LEVEL WIND..SW 9G15 W 10G20 W 11G20 W 9G15 MIX HGT (FT)....1100 4300 6900 7800 MIXNG WIND......SW 22 W 20 W 21 NW 17 HAINES INDEX....3 3 3 4 $$ FORECASTER...LEE REQUESTED BY...TODD WALROD TYPE OF REQUEST...PRESCRIBED .TAG 20120417.PILOT.01/DMX