FNUS73 KDMX 151210 FWSDMX SPOT FORECAST FOR RINGGOLD NORTH...IOWA STATE UNIVERSITY NATIONAL WEATHER SERVICE DES MOINES IA 710 AM CDT WED APR 15 2009 FORECAST IS BASED ON IGNITION TIME OF 1030 CDT ON APRIL 15. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. PLEASE REMEMBER TO SUBMIT A MID BURN OBSERVATION TO THE NATIONAL WEATHER SERVICE FOR EACH PRESCRIBED BURN. .DISCUSSION... HIGH PRESSURE OVER THE WESTERN GREAT LAKES AND RIDGING THROUGH THE MID MISSISSIPPI VALLEY WILL REMAIN IN CONTROL OVER IOWA TODAY. BY THIS AFTERNOON...EXPECT RELATIVE HUMIDITY VALUES TO DROP INTO THE LOWER 30S UNDER EXCELLENT MIXING CONDITIONS. THE WIND WILL GENERALLY BE OUT OF THE SOUTHEAST WITH A FEW GUSTS OVER 20 MPH POSSIBLE DURING THE AFTERNOON. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT). MAX TEMPERATURE.....AROUND 63. MIN HUMIDITY........33 PERCENT. EYE LEVEL WINDS.....LIGHT WINDS BECOMING SOUTHEAST 6 TO 10 MPH EARLY IN THE MORNING. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2200 FT AGL INCREASING TO 4900 FT AGL LATE IN THE MORNING. MIXING WINDS........SOUTHEAST 3 TO 8 MPH INCREASING TO 13 TO 20 MPH EARLY IN THE MORNING. SMOKE DISPERSAL.....GOOD (50700 KNOT-FT) INCREASING TO EXCELLENT (77300 KNOT-FT) IN THE AFTERNOON. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........17 21 25 27 31 40 44 44 45 WEATHER COV..... WEATHER TYPE.... TEMP............48 52 55 57 59 61 62 61 61 RH..............65 54 47 42 37 35 33 38 39 EYE LVL WND DIR.SE SE SE SE SE SE SE SE SE EYE LVL WND SPD.5 6 7 8 8 8 8 8 8 EYE LVL WND GST.10 10 15 15 15 15 15 15 15 MIX HGT (KFT)...1.3 2.2 3.2 4.2 4.4 4.7 4.9 4.7 4.5 MIXNG WIND DIR..E SE SE SE SE SE SE SE SE MIXNG WIND SPD..17 18 18 17 17 17 17 18 20 HAINES INDEX....5 5 5 5 5 5 5 5 5 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT) THEN BECOMING MOSTLY CLOUDY (55-65 PERCENT). MIN TEMPERATURE.....AROUND 43. MAX HUMIDITY........73 PERCENT. EYE LEVEL WINDS.....SOUTHEAST WINDS 8 TO 10 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......4400 FT AGL DECREASING TO 1700 FT AGL EARLY IN THE EVENING. MIXING WINDS........SOUTHEAST 14 TO 20 MPH DECREASING TO 9 TO 16 MPH IN THE LATE EVENING AND OVERNIGHT. SMOKE DISPERSAL.....EXCELLENT (74500 KNOT-FT) DECREASING TO POOR (7500 KNOT-FT) IN THE LATE EVENING AND OVERNIGHT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........46 48 51 54 60 67 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............61 55 52 50 47 46 RH..............42 53 56 61 68 71 EYE LEVEL WIND..SE 8 E 6 E 6 SE 7 SE 6 SE 6 EYE LEVEL WIND..15 15 15 15 15 15 MIX HGT (FT)....4400 1700 600 800 400 300 MIXNG WIND......SE 20 E 14 E 9 SE 10 SE 13 SE 15 HAINES INDEX....5 5 5 4 4 4 .THURSDAY... SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). MAX TEMPERATURE.....AROUND 65. MIN HUMIDITY........44 PERCENT. EYE LEVEL WINDS.....SOUTHEAST WINDS 9 TO 15 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1700 FT AGL INCREASING TO 3900 FT AGL IN THE LATE MORNING AND AFTERNOON. MIXING WINDS........SOUTHEAST 13 TO 22 MPH DECREASING TO 12 TO 17 MPH LATE IN THE AFTERNOON. SMOKE DISPERSAL.....GOOD (58900 KNOT-FT). TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........73 76 78 70 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............45 54 61 64 RH..............73 57 48 45 EYE LEVEL WIND..SE 7G15 SE 12G25 SE 11G25 SE 10G20 MIX HGT (FT)....300 2400 3900 3900 MIXNG WIND......SE 17 SE 22 SE 17 SE 12 HAINES INDEX....4 4 4 4 $$ FORECASTER...DONAVON REQUESTED BY...RYAN HARR TYPE OF REQUEST...PRESCRIBED .TAG 20090415.RINGG.01/DMX