FNUS73 KDMX 150908 FWSDMX SPOT FORECAST FOR RATHBUN...US ARMY COE-RATHBUN NATIONAL WEATHER SERVICE DES MOINES IA 408 AM CDT THU MAR 15 2012 FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON MARCH 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... UNSEASONALLY HIGH LEVELS OF WARMTH AND HUMIDITY ARE EXPECTED ACROSS SOUTHERN IOWA AGAIN TODAY. RECORD HIGH TEMPERATURES MAY BE REACHED. MIXING WILL BECOME FAIRLY DEEP BY AFTERNOON...BUT WITH WINDS NOT AS STRONG AS YESTERDAY. THERE WILL ALSO BE SLIGHT CHANCES FOR SHOWER AND THUNDERSTORM DEVELOPMENT DURING PEAK HEATING OF THE AFTERNOON. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT). SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 81. MIN HUMIDITY........54 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 6 TO 9 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1700 FT AGL INCREASING TO 6800 FT AGL. MIXING WINDS........SOUTHWEST 9 TO 15 MPH. SMOKE DISPERSAL.....EXCELLENT (67600 KNOT-FT) INCREASING TO EXCELLENT (81200 KNOT-FT) LATE IN THE AFTERNOON. WIND (20 FT)........SOUTH WINDS 6 TO 9 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........49 50 51 52 52 51 51 51 50 WEATHER COV..... SCH SCH SCH SCH SCH WEATHER TYPE.... RW RW RW RW RW TSTM COV........ SCH SCH SCH SCH SCH TEMP............67 70 73 75 77 78 80 79 78 RH..............81 76 68 64 60 58 54 56 58 20 FT WIND DIR..SW SW SW SW SW SW S S S 20 FT WIND SPD..7 7 8 8 8 9 9 8 7 20 FT WIND GUST. 10 10 10 10 10 10 EYE LVL WND DIR.SW SW SW SW SW SW S S S EYE LVL WND SPD.5 5 6 6 6 6 6 6 5 EYE LVL WND GST. 10 10 10 10 10 10 MIX HGT (KFT)...1.7 2.9 4.0 5.1 5.7 6.2 6.8 6.3 5.9 MIXNG WIND DIR..W W SW SW SW SW SW SW SW MIXNG WIND SPD..15 14 12 10 12 13 14 14 14 HAINES INDEX....5 4 4 3 3 4 4 4 3 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT) THEN BECOMING MOSTLY CLOUDY (50-60 PERCENT). SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING. MAX HUMIDITY........87 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 5 TO 9 MPH. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........50 51 54 59 59 59 WEATHER COV.....S CHC S CHC S CHC WEATHER TYPE....RNSHWR RNSHWR RNSHWR NONE NONE NONE TSTM COV........S CHC S CHC S CHC RH..............62 68 76 78 81 81 EYE LEVEL WIND..S 5 S 6 S 6 S 6 S 4 S 4 EYE LVL WND GST. 10 10 10 $$ FORECASTER...SMALL REQUESTED BY...JOHN PASA TYPE OF REQUEST...PRESCRIBED .TAG 20120315.RATHB.01/DMX