FNUS73 KDMX 141009 FWSDMX SPOT FORECAST FOR BAYS BRANCH...IDNR NATIONAL WEATHER SERVICE DES MOINES IA 509 AM CDT TUE MAY 14 2013 FORECAST IS BASED ON IGNITION TIME OF 1030 CDT TODAY. 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. ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM CDT THIS EVENING... .DISCUSSION... STRONG SOUTHWEST WINDS OF 20 TO 25 MPH WITH GUSTS TO NEAR 35 MPH ARE EXPECTED THIS AFTERNOON. WINDS WILL BEGIN TO DIMINISH PAST 7 PM TONIGHT BUT REMAIN SOUTHWEST FOR MUCH OF THE EVENING. DRY RELATIVE HUMIDITY IS FORECAST THIS AFTERNOON...GENERALLY AROUND 20 PERCENT AND POSSIBLY LESS BETWEEN 2 PM AND 5 PM DURING THE STRONGEST MIXING. .TODAY... SKY/WEATHER.........SUNNY (15-25 PERCENT). TEMPERATURE.........84 AT IGNITION...MAX 96. RH..................38 PERCENT AT IGNITION...MIN 20 PERCENT. EYE LEVEL WINDS.....SOUTHWEST WINDS 8 TO 16 MPH INCREASING TO 20 TO 23 MPH IN THE AFTERNOON. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2000 FT AGL INCREASING TO 4800 FT AGL EARLY IN THE AFTERNOON...THEN INCREASING TO 5800 FT AGL LATE IN THE AFTERNOON DECREASING TO 2300 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........SOUTHWEST 9 TO 17 MPH INCREASING TO 22 TO 28 MPH IN THE AFTERNOON. SMOKE DISPERSAL.....POOR TO FAIR (1900-25300 KNOT-FT) INCREASING TO GOOD TO EXCELLENT (43600-138700 KNOT-FT) IN THE AFTERNOON. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........7 9 12 14 15 18 21 22 28 WEATHER COV..... WEATHER TYPE.... TSTM COV........ TEMP............79 84 87 91 93 95 95 95 94 RH..............38 31 28 24 22 20 20 20 21 EYE LVL WND DIR.SW SW SW SW SW SW SW SW SW EYE LVL WND SPD.6 9 10 11 14 16 16 16 14 EYE LVL WND GST.10 15 20 25 25 30 30 30 30 MIX HGT (KFT)...0.3 1.1 2.0 2.9 3.9 4.8 5.8 4.0 2.3 MIXNG WIND DIR..SW SW SW SW SW SW SW SW SW MIXNG WIND SPD..10 12 14 17 22 25 28 26 24 HAINES INDEX....6 6 6 6 6 6 6 6 6 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE LATE EVENING AND EARLY MORNING. TEMPERATURE.........MIN 61. RH..................MAX 72 PERCENT. EYE LEVEL WINDS.....WEST WINDS 8 TO 17 MPH SHIFTING TO THE NORTH 6 TO 7 MPH AFTER MIDNIGHT. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......500 FT AGL. MIXING WINDS........WEST 13 TO 21 MPH SHIFTING TO THE NORTHWEST 6 TO 9 MPH AFTER MIDNIGHT. SMOKE DISPERSAL.....POOR TO POOR (1300-9700 KNOT-FT). TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........35 43 47 48 42 41 WEATHER COV..... S CHC S CHC S CHC WEATHER TYPE....NONE NONE RNSHWR RNSHWR RNSHWR NONE TSTM COV........ S CHC S CHC S CHC TEMP............88 81 75 70 65 62 RH..............26 37 48 57 68 72 EYE LEVEL WIND..SW 12 SW 9 W 6 W 6 NW 5 NW 4 EYE LVL WND GST.25 15 10 10 MIX HGT (FT)....500 300 300 300 300 300 MIXNG WIND......SW 21 SW 18 SW 17 W 15 W 9 NW 6 HAINES INDEX....6 6 6 5 4 4 $$ FORECASTER...PODRAZIK REQUESTED BY...MICHAEL STRAUSER TYPE OF REQUEST...PRESCRIBED .TAG 20130514.BAYSB.01/DMX