FNUS73 KDMX 011310 FWSDMX SPOT FORECAST FOR GRASS LAKE WMA...IOWA DNR NATIONAL WEATHER SERVICE DES MOINES IA 810 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 THIS MORNING. OTHERWISE EXPECT DECREASING CLOUDINESS AND DECREASING HUMIDITIES BY AFTERNOON AS MIXING INCREASES. .TODAY... SKY/WEATHER.........PARTLY SUNNY (45-55 PERCENT). MAX TEMPERATURE.....AROUND 59. MIN HUMIDITY........33 PERCENT. EYE LEVEL WINDS.....WEST WINDS 8 TO 15 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1900 FT AGL INCREASING TO 7700 FT AGL. MIXING WINDS........WEST 14 TO 21 MPH. SMOKE DISPERSAL.....GOOD (39900 KNOT-FT) INCREASING TO EXCELLENT (122900 KNOT-FT). TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........56 51 46 44 43 41 40 38 36 WEATHER COV..... WEATHER TYPE.... TEMP............49 51 53 55 56 57 58 57 56 RH..............58 52 44 40 37 35 33 34 35 EYE LVL WND DIR.W W NW NW NW NW W W W EYE LVL WND SPD.7 9 10 11 12 12 12 12 11 EYE LVL WND GST.15 20 25 25 25 25 25 25 25 MIX HGT (KFT)...4.5 5.3 6.1 6.8 7.1 7.4 7.7 7.1 6.5 MIXNG WIND DIR..NW NW NW W W W W W W MIXNG WIND SPD..15 15 16 16 17 17 18 20 21 HAINES INDEX....4 4 4 4 4 4 4 4 4 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT). MIN TEMPERATURE.....AROUND 36. MAX HUMIDITY........82 PERCENT. EYE LEVEL WINDS.....WEST WINDS 6 TO 13 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......5800 FT AGL DECREASING TO 2100 FT AGL EARLY IN THE EVENING. MIXING WINDS........WEST 13 TO 21 MPH DECREASING TO 8 TO 9 MPH IN THE LATE EVENING AND OVERNIGHT. SMOKE DISPERSAL.....EXCELLENT (105300 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 (%).........35 29 22 15 16 15 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............55 49 46 43 40 39 RH..............37 52 60 67 76 79 EYE LEVEL WIND..W 10 W 6 W 5 W 5 W 5 W 5 EYE LEVEL WIND..25 15 10 10 10 10 MIX HGT (FT)....5800 2100 300 300 300 300 MIXNG WIND......W 21 W 13 W 8 W 8 W 9 W 8 HAINES INDEX....4 5 5 5 5 5 .SATURDAY... SKY/WEATHER.........SUNNY (20-30 PERCENT). MAX TEMPERATURE.....AROUND 65. MIN HUMIDITY........30 PERCENT. EYE LEVEL WINDS.....WEST WINDS 6 TO 11 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1900 FT AGL INCREASING TO 10100 FT AGL. MIXING WINDS........WEST 7 TO 15 MPH INCREASING TO 17 TO 21 MPH EARLY IN THE AFTERNOON. SMOKE DISPERSAL.....FAIR (25000 KNOT-FT) INCREASING TO EXCELLENT (167300 KNOT-FT). TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........18 16 33 27 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............39 51 60 64 RH..............79 48 33 30 EYE LEVEL WIND..W 5G10 W 6G10 W 9G20 W 9G20 MIX HGT (FT)....300 5300 8500 10100 MIXNG WIND......W 7 NW 9 W 14 W 18 HAINES INDEX....5 5 5 5 $$ FORECASTER...KINNEY REQUESTED BY...DAVE WHITE TYPE OF REQUEST...PRESCRIBED .TAG 20090501.GRASS.01/DMX