FNUS73 KDMX 201715 FWSDMX SPOT FORECAST FOR UNIT 2 UNION 1SLOUGH NWR...USFWS NATIONAL WEATHER SERVICE DES MOINES IA 1215 PM CDT FRI APR 20 2012 FORECAST IS BASED ON IGNITION TIME OF 1205 CDT ON APRIL 20. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. AN INITIAL OBSERVATION AT IGNITION AND A MID BURN OBSERVATION ARE REQUIRED... PLEASE RELAY THEM TO THE NATIONAL WEATHER SERVICE FOR EACH PRESCRIBED BURN. .DISCUSSION... LOW PRESSURE OVER THE GREAT LAKES AREA WILL CONTINUE TO MOVE EAST PULLING LOW CLOUDS OVER THE EASTERN HALF OF IOWA WITH IT. IT WILL BE BREEZY TODAY WITH A NORTH WIND AT 15 TO 30 MPH. THE WIND WILL DIMINISH AFTER SUNSET. .REST OF TODAY... SKY/WEATHER.........SUNNY (10-20 PERCENT). MAX TEMPERATURE.....AROUND 54. MIN HUMIDITY........43 PERCENT. EYE LEVEL WINDS.....NORTH WINDS 10 TO 14 MPH. MIXING HEIGHT.......6500 FT AGL INCREASING TO 6800 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........NORTH 14 TO 22 MPH. SMOKE DISPERSAL.....EXCELLENT TO EXCELLENT (82100-107600 KNOT-FT). WIND (20 FT)........NORTH WINDS 10 TO 14 MPH. TIME (CDT) 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........16 15 14 14 13 16 21 WEATHER COV..... WEATHER TYPE.... TSTM COV........ TEMP............48 51 52 53 54 54 54 RH..............54 48 46 44 43 43 45 20 FT WIND DIR..N N N N N N N 20 FT WIND SPD..14 14 14 14 13 12 10 20 FT WIND GUST.20 20 20 20 15 15 15 EYE LVL WND DIR.N N N N N N N EYE LVL WND SPD.10 10 10 10 9 9 7 EYE LVL WND GST.20 20 20 20 15 15 15 MIX HGT (KFT)...4.8 6.0 6.2 6.5 6.8 6.8 6.8 MIXNG WIND DIR..N N N N N N N MIXNG WIND SPD..22 21 18 17 15 14 14 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT) THEN BECOMING MOSTLY CLOUDY (65-75 PERCENT). MIN TEMPERATURE.....AROUND 38. MAX HUMIDITY........79 PERCENT. EYE LEVEL WINDS.....NORTHEAST WINDS 5 TO 9 MPH EARLY IN THE EVENING BECOMING LIGHT...THEN BECOMING SOUTH 5 TO 9 MPH LATE IN THE EVENING. MIXING HEIGHT.......6800 FT AGL DECREASING TO 300 FT AGL. MIXING WINDS........NORTHEAST 6 TO 13 MPH SHIFTING TO THE EAST AROUND 2 MPH LATE IN THE EVENING...THEN SHIFTING TO THE SOUTH 3 TO 9 MPH LATE IN THE EVENING. SMOKE DISPERSAL.....POOR TO EXCELLENT (11300-75200 KNOT-FT) DECREASING TO POOR TO POOR (600-1900 KNOT-FT) IN THE LATE EVENING AND OVERNIGHT. WIND (20 FT)........NORTHEAST WINDS 5 TO 9 MPH EARLY IN THE EVENING BECOMING LIGHT...THEN BECOMING SOUTH 5 TO 9 MPH LATE IN THE EVENING. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........23 28 34 38 59 71 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TSTM COV........ TEMP............54 49 44 39 39 39 RH..............45 54 62 76 79 79 20 FT WIND......N 9 E 5 E 3 S 6 S 7 S 8 20 FT WIND GUST.10 5 10 EYE LEVEL WIND..N 6 E 4 E 2 S 4 S 5 S 6 EYE LVL WND GST.10 5 10 MIX HGT (FT)....6800 2500 300 300 300 300 MIXNG WIND......N 13 NE 6 E 2 S 5 S 6 S 8 .SATURDAY... SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). RAIN SHOWERS LIKELY. MAX TEMPERATURE.....AROUND 57. MIN HUMIDITY........57 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 10 TO 18 MPH SHIFTING TO THE SOUTHEAST 16 TO 20 MPH LATE IN THE MORNING. MIXING HEIGHT.......1600 FT AGL INCREASING TO 4700 FT AGL EARLY IN THE MORNING...THEN INCREASING TO 5200 FT AGL EARLY IN THE AFTERNOON DECREASING TO 2900 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........SOUTH 10 TO 17 MPH INCREASING TO 17 TO 22 MPH IN THE LATE MORNING AND AFTERNOON. SMOKE DISPERSAL.....POOR TO GOOD (2300-44200 KNOT-FT) INCREASING TO GOOD TO EXCELLENT (44000-85800 KNOT-FT) IN THE LATE MORNING AND AFTERNOON. WIND (20 FT)........SOUTH WINDS 10 TO 18 MPH SHIFTING TO THE SOUTHEAST 16 TO 20 MPH LATE IN THE MORNING. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........84 91 97 87 WEATHER COV.....LIKELY LIKELY LIKELY LIKELY WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR TSTM COV........ TEMP............39 47 53 56 RH..............79 65 59 59 20 FT WIND......S 10G15 S 17G25 S 20G30 S 16G25 EYE LEVEL WIND..S 7G15 S 12G25 S 14G30 S 11G25 MIX HGT (FT)....300 4400 4400 5200 MIXNG WIND......S 10 S 20 S 22 S 18 $$ FORECASTER...BOKSA REQUESTED BY...JIM GONZALEZ TYPE OF REQUEST...PRESCRIBED .TAG 20120420.UNIT2.01/DMX