FNUS73 KDMX 271445 FWSDMX SPOT FORECAST FOR BAYS BRANCH...IDNR NATIONAL WEATHER SERVICE DES MOINES IA 945 AM CDT SAT APR 27 2013 FORECAST IS BASED ON IGNITION TIME OF 1100 CDT ON APRIL 27. 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... A WEAK AREA OF HIGH PRESSURE OVER CENTRAL IOWA THIS MORNING WILL DISSIPATE THIS AFTERNOON AS SOUTHWEST SURFACE FLOW DEVELOPS OVER THE UPPER MIDWEST BY TONIGHT. RELATIVE HUMIDITY TODAY WILL BE LOWER SUNDAY AFTERNOON COMPARED TO THIS AFTERNOON. .TODAY... SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT) THEN BECOMING MOSTLY SUNNY (30-40 PERCENT). PATCHY FOG EARLY IN THE MORNING. MAX TEMPERATURE.....AROUND 68. MIN HUMIDITY........52 PERCENT. EYE LEVEL WINDS.....SOUTHEAST WINDS 5 TO 7 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......0 FT AGL. MIXING WINDS........SOUTHEAST 6 TO 8 MPH. SMOKE DISPERSAL.....POOR (0 KNOT-FT). WIND (20 FT)........SOUTHEAST WINDS 5 TO 7 MPH. TIME (CDT) 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........72 47 40 38 34 32 29 24 WEATHER COV..... WEATHER TYPE.... TSTM COV........ TEMP............55 58 62 65 67 67 66 66 RH..............77 69 62 56 52 52 54 54 20 FT WIND DIR..S S S SE SE SE SE SE 20 FT WIND SPD..7 7 6 6 6 6 6 6 20 FT WIND GUST.10 10 EYE LVL WND DIR.S S S SE SE SE SE SE EYE LVL WND SPD.5 5 4 4 4 4 4 4 EYE LVL WND GST.10 10 MIX HGT (KFT)...0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MIXNG WIND DIR..S S S SE SE SE SE SE MIXNG WIND SPD..8 8 8 7 7 6 6 6 HAINES INDEX....3 4 4 4 4 4 4 4 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT). MIN TEMPERATURE.....AROUND 47. MAX HUMIDITY........89 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 5 TO 7 MPH UNTIL EARLY MORNING BECOMING LIGHT...THEN BECOMING SOUTH AROUND 5 MPH EARLY IN THE MORNING. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......0 FT AGL. MIXING WINDS........SOUTHWEST 6 TO 7 MPH. SMOKE DISPERSAL.....POOR (0 KNOT-FT). WIND (20 FT)........SOUTH WINDS 5 TO 7 MPH UNTIL EARLY MORNING BECOMING LIGHT...THEN BECOMING SOUTH AROUND 5 MPH EARLY IN THE MORNING. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........21 20 16 13 13 14 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TSTM COV........ TEMP............65 59 54 51 48 47 RH..............56 67 77 83 89 89 20 FT WIND......SE 7 S 6 S 6 S 6 S 5 S 3 20 FT WIND GUST. 5 EYE LEVEL WIND..SE 5 S 4 S 4 S 4 S 4 S 2 EYE LVL WND GST. 5 MIX HGT (FT)....BLW100 BLW100 BLW100 BLW100 BLW100 BLW100 MIXNG WIND......SE 6 S 6 S 6 S 6 SW 7 SW 7 HAINES INDEX....4 4 4 4 4 4 .SUNDAY... SKY/WEATHER.........SUNNY (15-25 PERCENT). MAX TEMPERATURE.....AROUND 76. MIN HUMIDITY........45 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 5 TO 12 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......0 FT AGL. MIXING WINDS........SOUTHWEST 7 TO 15 MPH. SMOKE DISPERSAL.....POOR (0 KNOT-FT). WIND (20 FT)........SOUTH WINDS 5 TO 12 MPH. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........16 17 18 21 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TSTM COV........ TEMP............49 63 72 75 RH..............83 60 49 46 20 FT WIND......S 5 SW 9G10 S 12G15 S 12G15 EYE LEVEL WIND..S 4G5 SW 6G10 S 9G15 S 9G15 MIX HGT (FT)....BLW100 BLW100 BLW100 BLW100 MIXNG WIND......SW 7 SW 10 SW 9 SW 10 HAINES INDEX....5 4 4 4 $$ FORECASTER...JOHNSON REQUESTED BY...MICHAEL STRAUSER TYPE OF REQUEST...PRESCRIBED .TAG 20130427.BAYSB.01/DMX