FNUS73 KDMX 121519 FWSDMX SPOT FORECAST FOR STILL BURN...IOWA DNR NATIONAL WEATHER SERVICE DES MOINES IA 1019 AM CDT MON APR 12 2010 FORECAST IS BASED ON IGNITION TIME OF 1100 CDT ON APRIL 12. 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... SOUTH WINDS OF 15 TO 20 MPH WITH INTERMITTENT HIGHER GUSTS CAN BE EXPECTED TODAY. THE RELATIVE HUMIDITY WILL DROP INTO THE UPPER 30S TO LOWER 40S BY THIS AFTERNOON. SMOKE DISPERSAL WILL BE EXCELLENT TODAY. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT). MAX TEMPERATURE.....AROUND 77. MIN HUMIDITY........42 PERCENT. WIND (EYE LEVEL)....SOUTH WINDS 6 TO 15 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1900 FT AGL INCREASING TO 5600 FT AGL. MIXING WINDS........SOUTH 9 TO 16 MPH INCREASING TO 20 TO 26 MPH LATE IN THE MORNING. SMOKE DISPERSAL.....POOR (2400 KNOT-FT) INCREASING TO EXCELLENT (122300 KNOT-FT). TIME (CDT) 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........38 36 35 35 34 34 34 33 WEATHER COV..... WEATHER TYPE.... TEMP............67 70 73 74 76 77 76 76 RH..............58 55 49 48 43 42 43 42 EYE LVL WND DIR.S S S S S S S S EYE LVL WND SPD.9 10 11 12 12 12 11 10 EYE LVL WND GST.20 20 25 25 25 25 25 25 MIX HGT (KFT)...1.9 3.6 5.3 5.4 5.5 5.6 5.2 4.9 MIXNG WIND DIR..S S S S S S S S MIXNG WIND SPD..16 20 23 24 25 25 26 26 HAINES INDEX....5 5 5 5 4 4 4 4 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT). MIN TEMPERATURE.....AROUND 56. MAX HUMIDITY........75 PERCENT. WIND (EYE LEVEL)....SOUTH WINDS 7 TO 12 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......4600 FT AGL DECREASING TO 2100 FT AGL EARLY IN THE EVENING. MIXING WINDS........SOUTH 16 TO 25 MPH DECREASING TO 10 TO 13 MPH IN THE LATE EVENING AND OVERNIGHT. SMOKE DISPERSAL.....EXCELLENT (101500 KNOT-FT) DECREASING TO POOR (8600 KNOT-FT) IN THE LATE EVENING AND OVERNIGHT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........33 29 24 20 20 21 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............75 69 65 63 60 59 RH..............43 55 65 70 75 72 EYE LEVEL WIND..S 10 S 7 S 6 S 7 S 6 S 6 EYE LEVEL WIND..20 15 15 15 15 10 MIX HGT (FT)....4600 2100 600 300 300 300 MIXNG WIND......S 25 S 16 S 12 S 13 S 12 S 10 HAINES INDEX....4 5 5 4 4 4 .TUESDAY... SKY/WEATHER.........SUNNY (15-25 PERCENT). MAX TEMPERATURE.....AROUND 79. MIN HUMIDITY........36 PERCENT. WIND (EYE LEVEL)....SOUTH WINDS 7 TO 16 MPH INCREASING TO 15 TO 17 MPH IN THE AFTERNOON. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1900 FT AGL INCREASING TO 7200 FT AGL. MIXING WINDS........SOUTHWEST 12 TO 20 MPH INCREASING TO SOUTH 23 TO 29 MPH IN THE LATE MORNING AND AFTERNOON. SMOKE DISPERSAL.....POOR (23100 KNOT-FT) INCREASING TO EXCELLENT (167700 KNOT-FT). TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........21 20 19 20 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............58 68 76 80 RH..............69 52 42 36 EYE LEVEL WIND..S 6G10 S 10G20 S 13G30 S 14G30 MIX HGT (FT)....300 1900 6300 7200 MIXNG WIND......S 12 SW 23 S 23 S 25 HAINES INDEX....4 3 4 4 $$ FORECASTER...DONAVON REQUESTED BY...NATURAL RESOURCE TECH TYPE OF REQUEST...PRESCRIBED .TAG 20100412.STILL.01/DMX