FNUS73 KDMX 142035 FWSDMX SPOT FORECAST FOR REIFF PARK...IOWA DNR NATIONAL WEATHER SERVICE DES MOINES IA 335 PM CDT MON MAY 14 2012 FORECAST IS BASED ON IGNITION TIME OF 0100 CDT ON MAY 15. 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... A FRONTAL BOUNDARY WILL APPROACH FROM THE NORTH ON TUESDAY WITH BREEZY WESTERLY WINDS EXPECTED IN ADVANCE OF THE BOUNDARY BY MID MORNING. THE BOUNDARY IS FORECAST TO MOVE THROUGH FROM LATE MORNING INTO THE EARLY AFTERNOON WITH A SWITCH TO NORTHERLY WINDS. RELATIVE HUMIDITY VALUES WILL BE LOW ONCE AGAIN WITH MINIMUM VALUES DROPPING INTO THE LOWER 20S. WEDNESDAY WILL BE SIMILAR THOUGH WINDS WILL BE SWITCHING FROM THE SOUTHEAST. .TUESDAY... MAX TEMPERATURE.....AROUND 85. MIN HUMIDITY........23 PERCENT. EYE LEVEL WINDS.....NORTH WINDS 9 TO 16 MPH. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1200 FT AGL INCREASING TO 4000 FT AGL LATE IN THE MORNING...THEN INCREASING TO 7100 FT AGL EARLY IN THE AFTERNOON INCREASING TO 10500 FT AGL EARLY IN THE AFTERNOON DECREASING TO 8200 FT AGL. MIXING WINDS........WEST 10 TO 18 MPH SHIFTING TO THE NORTH 20 TO 23 MPH LATE IN THE MORNING. SMOKE DISPERSAL.....POOR TO POOR (2300-11900 KNOT-FT) INCREASING TO EXCELLENT TO EXCELLENT (163400-199800 KNOT-FT). WIND (20 FT)........NORTH WINDS 9 TO 16 MPH. TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM TEMP............57 63 68 74 76 79 81 82 83 84 83 81 RH..............64 52 42 34 32 28 26 25 24 23 23 24 20 FT WIND DIR..SW W W W NW NW N N N N N N 20 FT WIND SPD..10 9 10 10 12 12 13 14 15 16 16 15 20 FT WIND GUST.15 10 15 15 15 15 20 20 25 25 20 EYE LVL WND DIR.SW W W W NW NW N N N N N N EYE LVL WND SPD.7 6 7 7 9 9 9 10 11 11 11 11 EYE LVL WND GST.15 10 15 15 15 15 20 20 25 25 20 MIX HGT (KFT)...0.3 0.6 0.9 1.2 2.6 4.0 5.4 7.1 8.8 11 9.4 8.2 MIXNG WIND DIR..SW SW W W W NW NW NW NW N N N MIXNG WIND SPD..10 13 15 17 18 20 21 22 22 22 23 23 HAINES INDEX....6 6 6 6 6 5 5 5 5 5 5 5 .WEDNESDAY... MAX TEMPERATURE.....AROUND 80. MIN HUMIDITY........28 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 6 TO 14 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1700 FT AGL INCREASING TO 7100 FT AGL. MIXING WINDS........SOUTH 5 TO 14 MPH INCREASING TO AROUND 15 MPH LATE IN THE AFTERNOON. SMOKE DISPERSAL.....POOR TO GOOD (1000-56600 KNOT-FT) INCREASING TO EXCELLENT TO EXCELLENT (70300-72300 KNOT-FT) LATE IN THE AFTERNOON. WIND (20 FT)........SOUTH WINDS 6 TO 14 MPH. TIME (CDT) 7 AM 10 AM 1 PM 4 PM TEMP............52 68 77 80 RH..............71 42 30 29 20 FT WIND......NE 6 SE 8G10 SE 9G10 S 13G15 EYE LEVEL WIND..NE 4G5 SE 6G10 SE 6G10 S 9G15 MIX HGT (FT)....300 4500 5400 7100 MIXNG WIND......NE 5 E 9 SE 8 S 12 HAINES INDEX....4 5 4 4 $$ FORECASTER...DONAVON REQUESTED BY...JOE SCHWARTZ TYPE OF REQUEST...PRESCRIBED .TAG 20120515.REIFF.05/DMX