FNUS73 KDMX 201248 FWSDMX SPOT FORECAST FOR MEREDITH MARSH...IOWA DNR NATIONAL WEATHER SERVICE DES MOINES IA 748 AM CDT TUE APR 20 2010 FORECAST IS BASED ON IGNITION TIME OF 1030 CDT ON APRIL 20. 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... HIGH PRESSURE WILL BRING LIGHT WINDS AND A FEW HIGH CLOUDS TO THE STATE TODAY AND TONIGHT. WINDS WILL GENERALLY BE SOUTH TO SOUTHWEST THROUGHOUT THE DAY AT AROUND 5 MPH OR LESS. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT). TEMPERATURE.........58 AT IGNITION...MAX 69. MIN HUMIDITY........45 PERCENT AT IGNITION...MIN 28 PERCENT. WIND (EYE LEVEL)....LIGHT WINDS. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......700 FT AGL INCREASING TO 10200 FT AGL. MIXING WINDS........SOUTHWEST AROUND 3 MPH SHIFTING TO THE NORTH 2 TO 7 MPH EARLY IN THE MORNING. SMOKE DISPERSAL.....GOOD (55500 KNOT-FT). TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........44 45 45 45 45 46 46 47 48 WEATHER COV..... WEATHER TYPE.... TEMP............55 58 61 63 65 67 68 67 66 RH..............45 40 36 34 31 29 28 29 29 EYE LVL WND DIR.S SW W W W NW NW NW NW EYE LVL WND SPD.2 2 2 2 2 2 2 2 3 EYE LVL WND GST.5 5 5 5 5 5 MIX HGT (KFT)...0.7 3.4 6.1 8.8 9.3 9.7 10 9.6 8.9 MIXNG WIND DIR..N N N N N N N N N MIXNG WIND SPD..2 3 3 5 5 5 5 6 7 HAINES INDEX....5 5 6 6 6 6 6 6 5 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). MIN TEMPERATURE.....42. MAX HUMIDITY........76 PERCENT. WIND (EYE LEVEL)....LIGHT WINDS. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......8300 FT AGL DECREASING TO 300 FT AGL. MIXING WINDS........NORTH 3 TO 8 MPH. SMOKE DISPERSAL.....GOOD (57800 KNOT-FT) DECREASING TO POOR (1300 KNOT-FT) IN THE LATE EVENING AND OVERNIGHT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........48 47 45 44 43 41 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............65 58 54 50 47 46 RH..............30 40 48 58 65 71 EYE LEVEL WIND..N 3 N 2 N 1 W 1 NW 2 NW 2 EYE LEVEL WIND..5 5 MIX HGT (FT)....8300 2900 300 300 300 300 MIXNG WIND......N 8 N 7 N 6 N 5 N 3 N 3 HAINES INDEX....5 5 5 5 5 5 .WEDNESDAY... SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT). MAX TEMPERATURE.....70. MIN HUMIDITY........33 PERCENT. WIND (EYE LEVEL)....LIGHT WINDS BECOMING NORTHWEST AROUND 5 MPH LATE IN THE MORNING. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1000 FT AGL INCREASING TO 3300 FT AGL LATE IN THE MORNING...THEN INCREASING TO 5700 FT AGL LATE IN THE MORNING INCREASING TO 9700 FT AGL EARLY IN THE AFTERNOON INCREASING TO 10500 FT AGL DECREASING TO 7100 FT AGL LATE IN THE AFTERNOON DECREASING TO 3800 FT AGL. MIXING WINDS........NORTH 3 TO 12 MPH. SMOKE DISPERSAL.....GOOD (84200 KNOT-FT). TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........41 43 45 50 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............44 56 65 69 RH..............76 53 40 33 EYE LEVEL WIND..N 3G5 NE 3G5 NE 4G5 N 4G5 MIX HGT (FT)....300 1000 8100 10500 MIXNG WIND......NW 3 N 5 NW 7 N 9 HAINES INDEX....5 5 5 5 $$ FORECASTER...LEE REQUESTED BY...TODD WALROD TYPE OF REQUEST...PRESCRIBED .TAG 20100420.MERED.01/DMX