FNUS73 KDMX 010941 FWSDMX SPOT FORECAST FOR SCHWOB MARSH WEST...USFWS NATIONAL WEATHER SERVICE DES MOINES IA 441 AM CDT FRI MAY 1 2009 FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON MAY 01. 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... SKIES WILL BE MOSTLY CLOUDY THIS MORNING WITH AN OUTSIDE CHANCE FOR A LIGHT SPRINKLE EARLY. OTHERWISE EXPECT DECREASING CLOUDINESS AND LOWERING HUMIDITIES BY AFTERNOON AS MIXING INCREASES. .TODAY... SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). MAX TEMPERATURE.....AROUND 59. MIN HUMIDITY........35 PERCENT. EYE LEVEL WINDS.....NORTHWEST WINDS 8 TO 13 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2500 FT AGL INCREASING TO 7800 FT AGL. MIXING WINDS........WEST 15 TO 20 MPH. SMOKE DISPERSAL.....EXCELLENT (75900 KNOT-FT) INCREASING TO EXCELLENT (112200 KNOT-FT) IN THE AFTERNOON. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........58 53 48 45 44 43 41 39 38 WEATHER COV..... WEATHER TYPE.... TEMP............50 52 54 55 57 57 58 58 57 RH..............54 48 43 40 37 37 36 36 35 EYE LVL WND DIR.NW W NW NW NW NW W W NW EYE LVL WND SPD.7 8 9 9 10 10 10 10 10 EYE LVL WND GST.15 15 20 20 20 20 25 25 25 MIX HGT (KFT)...5.0 5.4 5.9 6.3 6.8 7.3 7.8 7.2 6.6 MIXNG WIND DIR..NW NW NW W W W W W W MIXNG WIND SPD..15 15 15 15 15 15 16 17 20 HAINES INDEX....3 3 4 4 4 4 4 4 4 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT). MIN TEMPERATURE.....AROUND 38. MAX HUMIDITY........79 PERCENT. EYE LEVEL WINDS.....SOUTHWEST WINDS 6 TO 12 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......6000 FT AGL DECREASING TO 2200 FT AGL EARLY IN THE EVENING. MIXING WINDS........WEST 13 TO 20 MPH DECREASING TO 7 TO 9 MPH IN THE LATE EVENING AND OVERNIGHT. SMOKE DISPERSAL.....EXCELLENT (102600 KNOT-FT) DECREASING TO POOR (2000 KNOT-FT) IN THE LATE EVENING AND OVERNIGHT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........37 29 22 16 16 14 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............56 50 47 44 42 41 RH..............37 52 60 68 73 76 EYE LEVEL WIND..NW 10 W 6 W 5 W 5 W 5 SW 5 EYE LEVEL WIND..20 10 10 10 10 10 MIX HGT (FT)....6000 2200 300 300 300 300 MIXNG WIND......W 20 W 13 W 8 W 8 W 8 W 8 HAINES INDEX....4 4 4 5 5 5 .SATURDAY... SKY/WEATHER.........SUNNY (20-30 PERCENT). MAX TEMPERATURE.....AROUND 66. MIN HUMIDITY........31 PERCENT. EYE LEVEL WINDS.....WEST WINDS 6 TO 11 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2100 FT AGL INCREASING TO 10300 FT AGL. MIXING WINDS........WEST 7 TO 16 MPH INCREASING TO 17 TO 20 MPH LATE IN THE AFTERNOON. SMOKE DISPERSAL.....GOOD (30800 KNOT-FT) INCREASING TO EXCELLENT (159600 KNOT-FT). TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........22 16 34 27 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............40 53 61 65 RH..............79 48 36 31 EYE LEVEL WIND..W 5G10 W 5G10 W 8G15 W 9G20 MIX HGT (FT)....300 5800 8700 10300 MIXNG WIND......W 7 NW 10 W 14 W 17 HAINES INDEX....5 5 5 5 $$ FORECASTER...SMALL REQUESTED BY...RICHARD R JOHNSON TYPE OF REQUEST...PRESCRIBED .TAG 20090501.SCHWO.01/DMX