FNUS73 KDMX 151512 FWSDMX SPOT FORECAST FOR SOUTH RIVER WRP...IOWA DNR NATIONAL WEATHER SERVICE DES MOINES IA 1012 AM CDT THU MAR 15 2012 FORECAST IS BASED ON IGNITION TIME OF 1200 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... LOW OVERCAST SKIES AND POOR MIXING CONDITIONS WILL GRADUALLY IMPROVE BY LATE MORNING AND EARLY AFTERNOON. UNSEASONABLY HIGH LEVELS OF WARMTH AND HUMIDITY ARE AGAIN EXPECTED ACROSS CENTRAL AND SOUTHERN IOWA. 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 CLOUDY (75-85 PERCENT) THIS MORNING THEN BECOMING MOSTLY SUNNY (45-55 PERCENT) IN THE AFTERNOON. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 81. MIN HUMIDITY........45 PERCENT. EYE LEVEL WINDS.....LIGHT WINDS BECOMING SOUTH 5 TO 8 MPH LATE IN THE MORNING. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1800 FT AGL AT IGNITION INCREASING TO 6700 FT AGL BY MID AFTERNOON. MIXING WINDS........SOUTHWEST 2 TO 6 MPH INCREASING TO 12 TO 15 MPH EARLY IN THE AFTERNOON. SMOKE DISPERSAL.....POOR (5420 KNOT-FT) AT IGNITION INCREASING TO EXCELLENT (86900 KNOT-FT) LATE IN THE AFTERNOON. WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 8 MPH LATE IN THE MORNING. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON. TIME (CDT) 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........50 43 44 46 49 51 53 WEATHER COV..... SCH SCH SCH SCH SCH WEATHER TYPE.... RW RW RW RW RW TSTM COV........ SCH SCH SCH SCH SCH TEMP............69 73 76 78 80 79 78 RH..............61 55 50 48 45 47 48 20 FT WIND DIR..SW S S S S S S 20 FT WIND SPD..5 6 7 8 8 7 5 20 FT WIND GUST. 10 10 EYE LVL WND DIR.SW S S S S S S EYE LVL WND SPD.4 4 5 6 6 5 4 EYE LVL WND GST. 10 10 MIX HGT (KFT)...2.5 3.2 4.4 5.5 6.7 6.2 5.7 MIXNG WIND DIR..SW SW SW SW SW SW SW MIXNG WIND SPD..2 2 6 12 15 15 13 HAINES INDEX....5 5 5 4 4 4 3 $$ FORECASTER...SKOW REQUESTED BY...CASEY TRINE TYPE OF REQUEST...PRESCRIBED .TAG 20120315.SOUTH.07/DMX