FNUS73 KDMX 311220 FWSDMX SPOT FORECAST FOR RINGGOLD NORTH...IOWA STATE UNIVERSITY NATIONAL WEATHER SERVICE DES MOINES IA 720 AM CDT SAT MAR 31 2012 FORECAST IS BASED ON IGNITION TIME OF 1200 CDT ON MARCH 31. 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... WEAK HIGH PRESSURE OVER EASTERN IOWA WILL MOVE EAST AS A WARM FRONT PUSHES NORTH INTO IOWA TONIGHT. SCATTERED THUNDERSTORMS WILL APPROACH FROM THE WEST LATE IN THE DAY...WITH ISOLATED THUNDERSTORMS INTO THE EVENING. .TODAY... SKY/WEATHER.........PARTLY SUNNY (45-55 PERCENT). PATCHY FOG EARLY IN THE MORNING. MAX TEMPERATURE.....AROUND 77. MIN HUMIDITY........54 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 8 TO 14 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2000 FT AGL INCREASING TO 3600 FT AGL IN THE AFTERNOON...THEN DECREASING TO 1400 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........SOUTHWEST 15 TO 23 MPH. SMOKE DISPERSAL.....POOR TO EXCELLENT (3500-64000 KNOT-FT). WIND (20 FT)........SOUTH WINDS 8 TO 14 MPH. TIME (CDT) 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........55 55 55 55 54 55 58 WEATHER COV..... WEATHER TYPE.... TSTM COV........ TEMP............68 72 75 76 76 76 75 RH..............65 61 55 54 54 54 58 20 FT WIND DIR..S S S S S S S 20 FT WIND SPD..12 12 13 14 14 13 12 20 FT WIND GUST.15 15 15 20 20 15 15 EYE LVL WND DIR.S S S S S S S EYE LVL WND SPD.9 9 9 10 10 9 9 EYE LVL WND GST.15 15 15 20 20 15 15 MIX HGT (KFT)...1.8 2.0 2.5 3.1 3.6 2.5 1.4 MIXNG WIND DIR..S SW SW SW SW SW S MIXNG WIND SPD..15 15 16 18 21 22 23 HAINES INDEX....4 4 4 4 4 4 5 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (50-60 PERCENT) THEN BECOMING PARTLY CLOUDY (35-45 PERCENT). SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING. MIN TEMPERATURE.....AROUND 61. MAX HUMIDITY........84 PERCENT. EYE LEVEL WINDS.....SOUTHWEST WINDS 7 TO 10 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......300 FT AGL. MIXING WINDS........SOUTH 14 TO 22 MPH SHIFTING TO THE SOUTHWEST 8 TO 10 MPH IN THE LATE EVENING AND OVERNIGHT. SMOKE DISPERSAL.....POOR TO POOR (1700-4800 KNOT-FT). WIND (20 FT)........SOUTHWEST WINDS 7 TO 10 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE EVENING. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........59 57 55 53 45 34 WEATHER COV.....S CHC S CHC S CHC WEATHER TYPE....RNSHWR RNSHWR RNSHWR NONE NONE NONE TSTM COV........S CHC S CHC S CHC TEMP............74 70 68 66 65 63 RH..............59 66 68 70 73 78 20 FT WIND......S 9 S 10 S 9 S 8 SW 8 SW 8 20 FT WIND GUST.10 10 10 10 10 EYE LEVEL WIND..S 6 S 7 S 6 S 6 SW 6 SW 6 EYE LVL WND GST.10 10 10 10 10 MIX HGT (FT)....300 300 300 300 300 300 MIXNG WIND......S 22 S 14 S 9 SW 10 SW 9 SW 8 HAINES INDEX....5 4 4 5 5 5 .SUNDAY... SKY/WEATHER.........SUNNY (10-20 PERCENT). MAX TEMPERATURE.....AROUND 86. MIN HUMIDITY........46 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 7 TO 15 MPH. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1900 FT AGL INCREASING TO 4300 FT AGL LATE IN THE MORNING. MIXING WINDS........SOUTHWEST 8 TO 17 MPH SHIFTING TO THE SOUTH 18 TO 22 MPH EARLY IN THE AFTERNOON. SMOKE DISPERSAL.....POOR TO GOOD (1800-41000 KNOT-FT) INCREASING TO GOOD TO EXCELLENT (52800-68700 KNOT-FT) IN THE AFTERNOON. WIND (20 FT)........SOUTH WINDS 7 TO 15 MPH. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........26 17 0 8 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TSTM COV........ TEMP............63 71 80 84 RH..............81 73 54 46 20 FT WIND......SW 7 SW 12G15 S 14G20 S 15G20 EYE LEVEL WIND..SW 5 SW 9G15 S 10G20 S 11G20 MIX HGT (FT)....300 1200 3500 4300 MIXNG WIND......S 8 SW 16 SW 17 S 18 HAINES INDEX....5 4 5 5 $$ FORECASTER...SCHUMACHER REQUESTED BY...RYAN HARR TYPE OF REQUEST...PRESCRIBED .TAG 20120331.RINGG.01/DMX