FNUS73 KDMX 021201 FWSDMX SPOT FORECAST FOR SAC CITY WETLAND COMPLEX...IA DNR NATIONAL WEATHER SERVICE DES MOINES IA 701 AM CDT MON MAY 2 2011 FORECAST IS BASED ON IGNITION TIME OF 1030 CDT ON MAY 02. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. PLEASE REMEMBER TO SUBMIT A MID BURN OBSERVATION TO THE NATIONAL WEATHER SERVICE FOR EACH PRESCRIBED BURN. .DISCUSSION... VERY LOW RELATIVE HUMIDITY VALUES WILL BE IN PLACE ONCE AGAIN...DROPPING INTO THE 20S BY THIS AFTERNOON. BREEZY WEST TO NORTHWEST WINDS OF 10 TO 20 MPH WILL BE COMMON. HIGH MIXING HEIGHTS AND ADEQUATE TRANSPORT WINDS WILL LEAD TO EXCELLENT SMOKE DISPERSION. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). MAX TEMPERATURE.....AROUND 59. MIN HUMIDITY........22 PERCENT. EYE LEVEL WINDS.....NORTHWEST WINDS 8 TO 13 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1700 FT AGL INCREASING TO 9000 FT AGL. MIXING WINDS........NORTH 6 TO 14 MPH INCREASING TO NORTHWEST 17 TO 23 MPH IN THE LATE MORNING AND AFTERNOON. SMOKE DISPERSAL.....MARGINAL (36200 KNOT-FT) INCREASING TO EXCELLENT (167600 KNOT-FT). WIND (20 FT)........NORTHWEST WINDS 10 TO 17 MPH. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........20 23 28 31 32 33 33 39 50 WEATHER COV..... WEATHER TYPE.... TEMP............45 49 52 54 56 57 58 58 57 RH..............43 36 32 28 25 23 22 22 22 20 FT WIND DIR..NW NW NW NW NW NW NW NW NW 20 FT WIND SPD..15 16 16 16 16 17 17 17 16 20 FT WIND GUST.20 25 25 25 25 25 25 25 25 EYE LVL WND DIR.NW NW NW NW NW NW NW NW NW EYE LVL WND SPD.11 11 11 11 11 12 12 12 11 EYE LVL WND GST.20 25 25 25 25 25 25 25 25 MIX HGT (KFT)...4.5 5.3 6.2 7.0 7.7 8.3 9.0 8.7 8.4 MIXNG WIND DIR..N NW NW NW NW NW NW NW NW MIXNG WIND SPD..17 18 17 17 18 20 21 22 23 HAINES INDEX....5 5 4 4 4 4 4 4 4 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT) THEN BECOMING PARTLY CLOUDY (35-45 PERCENT). PATCHY FROST EARLY IN THE MORNING. MIN TEMPERATURE.....AROUND 33. MAX HUMIDITY........64 PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......8200 FT AGL DECREASING TO 400 FT AGL. MIXING WINDS........NORTHWEST 17 TO 22 MPH BECOMING WEST 5 TO 12 MPH EARLY IN THE EVENING. SMOKE DISPERSAL.....EXCELLENT (155000 KNOT-FT) DECREASING TO POOR (20000 KNOT-FT) IN THE LATE EVENING AND OVERNIGHT. WIND (20 FT)........NORTH WINDS 6 TO 15 MPH BECOMING LIGHT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........55 60 61 57 48 35 WEATHER COV..... PATCHY WEATHER TYPE....NONE NONE NONE NONE NONE FROST TEMP............55 48 44 41 38 36 RH..............23 34 43 50 54 61 20 FT WIND......NW 15 N 9 N 6 NW 3 NW 2 NW 2 20 FT WIND GUST.20 10 5 MIX HGT (FT)....8200 4900 2500 800 400 300 MIXNG WIND......NW 22 N 12 N 5 N 5 NW 6 W 6 HAINES INDEX....4 5 5 5 5 5 .TUESDAY... SKY/WEATHER.........SUNNY (15-25 PERCENT). MAX TEMPERATURE.....AROUND 63. MIN HUMIDITY........21 PERCENT. EYE LEVEL WINDS.....LIGHT WINDS BECOMING NORTHWEST 5 TO 8 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2000 FT AGL INCREASING TO 8800 FT AGL. MIXING WINDS........NORTHWEST 7 TO 14 MPH. SMOKE DISPERSAL.....MARGINAL (37500 KNOT-FT) INCREASING TO GOOD (88700 KNOT-FT) IN THE LATE MORNING AND AFTERNOON. WIND (20 FT)........LIGHT WINDS BECOMING NORTHWEST 6 TO 10 MPH. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........25 21 16 14 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............36 49 57 62 RH..............64 39 25 21 20 FT WIND......NW 3G5 N 7 NW 7 NW 8G10 EYE LEVEL WIND..NW 2G5 N 5 NW 5 NW 6G10 MIX HGT (FT)....300 5400 8100 8800 MIXNG WIND......W 7 N 14 N 13 N 10 HAINES INDEX....4 5 5 5 $$ FORECASTER...DONAVON REQUESTED BY...PETE HILDRETH TYPE OF REQUEST...PRESCRIBED .TAG 20110502.SACCI.01/DMX