FNUS73 KDMX 251257 FWSDMX SPOT FORECAST FOR SOUTH RIVER WRP...IOWA DNR-USFWS NATIONAL WEATHER SERVICE DES MOINES IA 757 AM CDT THU APR 25 2013 FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON APRIL 25. 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 RIDGE OF HIGH PRESSURE CURRENTLY OVER WESTERN IOWA WILL PUSH EAST DURING THE DAY TODAY. WESTERLY WINDS THIS MORNING WILL BACK TO THE SOUTHWEST AND EVENTUALLY THE SOUTH BY SUNSET AS THE RIDGE AXIS MOVES THROUGH. OTHERWISE SKIES WILL BE MOSTLY SUNNY WITH A FEW HIGH CLOUDS PASSING THROUGH. .TODAY... SKY/WEATHER.........SUNNY (5-15 PERCENT). TEMPERATURE.........45 AT IGNITION...MAX 58. RH..................55 PERCENT AT IGNITION...MIN 37 PERCENT. EYE LEVEL WINDS.....SOUTHWEST WINDS 5 TO 9 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1500 FT AGL INCREASING TO 3400 FT AGL EARLY IN THE MORNING...THEN INCREASING TO 5600 FT AGL LATE IN THE MORNING INCREASING TO 6700 FT AGL IN THE AFTERNOON DECREASING TO 3200 FT AGL. MIXING WINDS........NORTHWEST 8 TO 15 MPH SHIFTING TO THE SOUTHWEST 13 TO 20 MPH IN THE LATE MORNING AND AFTERNOON. SMOKE DISPERSAL.....POOR TO GOOD (3800-33200 KNOT-FT) INCREASING TO GOOD TO EXCELLENT (34400-100500 KNOT-FT) IN THE LATE MORNING AND AFTERNOON. WIND (20 FT)........WINDS SOUTHWEST AT 7 MPH AT IGNITION...OTHERWISE SOUTHWEST WINDS 5 TO 9 MPH. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........8 9 11 13 12 11 11 11 12 WEATHER COV..... WEATHER TYPE.... TSTM COV........ TEMP............45 48 51 53 55 57 58 58 57 RH..............55 49 44 41 40 37 37 39 42 20 FT WIND DIR..SW W W W W W SW SW S 20 FT WIND SPD..7 7 7 8 8 8 8 9 9 20 FT WIND GUST.15 15 15 15 10 10 10 10 10 EYE LVL WND DIR.SW W W W W W SW SW S EYE LVL WND SPD.5 5 5 6 6 6 6 6 6 EYE LVL WND GST.15 15 15 15 10 10 10 10 10 MIX HGT (KFT)...3.4 4.5 5.6 6.7 6.7 6.7 6.6 4.9 3.2 MIXNG WIND DIR..NW NW W W W W SW SW SW MIXNG WIND SPD..18 20 18 17 16 16 15 14 13 HAINES INDEX....3 3 3 3 3 3 3 4 4 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT). TEMPERATURE.........MIN 44. RH..................MAX 79 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 9 TO 12 MPH. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1400 FT AGL. MIXING WINDS........SOUTH 10 TO 13 MPH. SMOKE DISPERSAL.....POOR TO FAIR (2000-28100 KNOT-FT). WIND (20 FT)........SOUTH WINDS 9 TO 12 MPH. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........13 10 13 26 30 32 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TSTM COV........ TEMP............56 52 49 47 46 45 RH..............45 54 61 68 73 76 20 FT WIND......S 9 S 10 S 12 S 12 S 12 S 12 20 FT WIND GUST.10 15 15 15 15 EYE LEVEL WIND..S 6 S 7 S 9 S 9 S 9 S 9 EYE LVL WND GST.10 15 15 15 15 MIX HGT (FT)....1400 600 300 300 300 300 MIXNG WIND......S 12 S 10 S 12 S 13 S 12 S 10 HAINES INDEX....5 4 4 4 5 6 $$ FORECASTER...SKOW REQUESTED BY...CASEY TRINE TYPE OF REQUEST...PRESCRIBED .TAG 20130425.SOUTH.04/DMX