FNUS73 KDMX 211223 FWSDMX SPOT FORECAST FOR WAPITI...USFWS NATIONAL WEATHER SERVICE DES MOINES IA 723 AM CDT THU MAY 21 2009 FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON MAY 21. 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... SCATTERED SHOWERS AND POSSIBLY A THUNDERSTORM...WILL CONTINUE TODAY ACROSS FAR NORTHERN IOWA. A NORTHERLY WIND WILL CONTINUE BEHIND A COLD FRONT THAT WILL PUSH INTO CENTRAL AND SOUTHERN IOWA THROUGH THE DAY. .TODAY... SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). NUMEROUS SHOWERS IN THE MORNING. ISOLATED THUNDERSTORMS THROUGH THE DAY. SCATTERED SHOWERS IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 69. MIN HUMIDITY........47 PERCENT. EYE LEVEL WINDS.....NORTH WINDS 10 TO 17 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......4100 FT AGL INCREASING TO 5500 FT AGL LATE IN THE MORNING. MIXING WINDS........NORTH 22 TO 30 MPH INCREASING TO 25 TO 32 MPH IN THE LATE MORNING AND EARLY AFTERNOON...THEN BECOMING NORTHEAST 15 TO 22 MPH EARLY IN THE AFTERNOON DECREASING TO AROUND 12 MPH LATE IN THE AFTERNOON. SMOKE DISPERSAL.....EXCELLENT (85700 KNOT-FT) INCREASING TO EXCELLENT (116800 KNOT-FT) IN THE LATE MORNING AND EARLY AFTERNOON...THEN DECREASING TO EXCELLENT (88800 KNOT-FT) LATE IN THE AFTERNOON. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........81 83 88 90 89 86 85 84 83 WEATHER COV.....NUM NUM NUM SCT SCT SCT SCT SCT SCT WEATHER TYPE....RW RW RW RW RW RW RW RW RW TEMP............65 66 67 67 68 68 68 68 67 RH..............58 54 50 50 49 49 49 47 49 EYE LVL WND DIR.N N N N N N N N N EYE LVL WND SPD.13 14 13 13 13 12 11 10 10 EYE LVL WND GST.25 30 25 25 25 25 25 20 20 MIX HGT (KFT)...3.9 4.1 4.4 4.7 5.0 5.3 5.5 5.0 4.5 MIXNG WIND DIR..N N N N N N N NE NE MIXNG WIND SPD..32 32 30 28 25 22 18 15 12 HAINES INDEX....4 4 4 4 3 3 2 2 2 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). SLIGHT CHANCE OF RAIN SHOWERS IN THE EVENING...THEN CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. MIN TEMPERATURE.....AROUND 49. MAX HUMIDITY........83 PERCENT. EYE LEVEL WINDS.....EAST WINDS 5 TO 11 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......3900 FT AGL DECREASING TO 1600 FT AGL IN THE LATE EVENING AND OVERNIGHT. MIXING WINDS........EAST 2 TO 9 MPH. SMOKE DISPERSAL.....GOOD (31500 KNOT-FT). TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........82 79 76 73 75 76 WEATHER COV.....S CHC S CHC S CHC CHANCE CHANCE CHANCE WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............66 61 57 55 52 51 RH..............48 58 67 72 80 83 EYE LEVEL WIND..N 9 NE 6 NE 5 NE 4 E 4 E 5 EYE LEVEL WIND..15 10 5 5 MIX HGT (FT)....3900 2400 1400 900 900 800 MIXNG WIND......NE 9 N 7 NE 5 NE 3 E 2 E 5 HAINES INDEX....2 3 4 5 5 5 .FRIDAY... SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF RAIN SHOWERS. MAX TEMPERATURE.....AROUND 69. MIN HUMIDITY........49 PERCENT. EYE LEVEL WINDS.....SOUTHEAST WINDS 5 TO 9 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2300 FT AGL INCREASING TO 4700 FT AGL IN THE LATE MORNING AND AFTERNOON. MIXING WINDS........SOUTHEAST 10 TO 17 MPH SHIFTING TO THE SOUTH AROUND 10 MPH LATE IN THE AFTERNOON. SMOKE DISPERSAL.....GOOD (57300 KNOT-FT). TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........78 81 85 85 WEATHER COV.....CHANCE CHANCE CHANCE CHANCE WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR TEMP............51 60 65 68 RH..............83 62 54 51 EYE LEVEL WIND..E 6G10 SE 6G15 E 7G15 SE 5G15 MIX HGT (FT)....700 3100 3900 4700 MIXNG WIND......E 10 SE 20 SE 16 S 13 HAINES INDEX....4 2 2 3 $$ FORECASTER...KINNEY REQUESTED BY...RICHARD R JOHNSON TYPE OF REQUEST...PRESCRIBED .TAG 20090521.WAPIT.01/DMX