FNUS73 KDMX 121137 FWSDMX SPOT FORECAST FOR S16 A1 2011...CAMP DODGE NATIONAL WEATHER SERVICE DES MOINES IA 637 AM CDT TUE APR 12 2011 FORECAST IS BASED ON IGNITION TIME OF 0900 CDT ON APRIL 12. 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 IOWA THIS MORNING WILL MOVE EAST AND PASS INTO ILLINOIS BY THIS AFTERNOON. LIGHT AND VARIABLE WINDS WILL BECOME SOUTHERLY AND GRADUALLY INCREASE BY MIDDAY. RELATIVE HUMIDITIES WILL FALL QUICKLY THROUGH THE DAY AS THE DRY AIR HEATS QUICKLY. .TODAY... SKY/WEATHER.........SUNNY (5-15 PERCENT). TEMPERATURE.........51 AT IGNITION...MAX 72. RH..................52 PERCENT AT IGNITION...MIN 27 PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1100 FT AGL INCREASING TO 6200 FT AGL. MIXING WINDS........SOUTH 5 TO 13 MPH. SMOKE DISPERSAL.....FAIR (49600 KNOT-FT) INCREASING TO GOOD (62700 KNOT-FT) LATE IN THE AFTERNOON. WIND (20 FT)........WINDS WEST AT 5 MPH AT IGNITION...OTHERWISE LIGHT WINDS BECOMING SOUTH 5 TO 7 MPH EARLY IN THE MORNING. TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........6 8 10 11 12 13 14 16 17 19 WEATHER COV..... WEATHER TYPE.... TEMP............51 55 59 62 65 67 69 71 70 69 RH..............52 47 40 35 31 29 28 27 27 30 20 FT WIND DIR..W W SW SW SW S S S S S 20 FT WIND SPD..5 5 6 7 7 7 7 7 7 7 20 FT WIND GUST. MIX HGT (KFT)...0.8 1.1 2.5 3.9 5.3 5.6 5.9 6.2 5.7 5.3 MIXNG WIND DIR..W SW SW S S S S S S S MIXNG WIND SPD..5 5 5 5 6 8 9 12 13 13 HAINES INDEX....5 5 5 5 5 5 4 4 4 5 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT) THEN BECOMING MOSTLY CLOUDY (45-55 PERCENT). TEMPERATURE.........MIN 47. RH..................MAX 74 PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......4800 FT AGL DECREASING TO 1800 FT AGL EARLY IN THE EVENING. MIXING WINDS........SOUTHEAST 6 TO 13 MPH. SMOKE DISPERSAL.....GOOD (53300 KNOT-FT) DECREASING TO POOR (2000 KNOT-FT) IN THE LATE EVENING AND OVERNIGHT. WIND (20 FT)........SOUTH WINDS 6 TO 8 MPH. TIME (CDT) 7 PM 10 PM 1 AM 4 AM SKY (%).........19 31 43 47 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............68 59 55 51 RH..............31 45 59 68 20 FT WIND......S 7 S 7 S 7 S 7 MIX HGT (FT)....4800 300 300 300 MIXNG WIND......S 13 SE 8 S 6 SE 6 HAINES INDEX....5 5 5 5 .WEDNESDAY... SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT). TEMPERATURE.........MAX 72. RH..................MIN 41 PERCENT. HAINES INDEX........MISSING. MIXING HEIGHT.......1600 FT AGL INCREASING TO 3800 FT AGL LATE IN THE MORNING...THEN INCREASING TO 4900 FT AGL EARLY IN THE AFTERNOON DECREASING TO 1600 FT AGL EARLY IN THE AFTERNOON. MIXING WINDS........ SMOKE DISPERSAL.....FAIR (48500 KNOT-FT). WIND (20 FT)........EAST WINDS 6 TO 8 MPH. TIME (CDT) 7 AM 11 AM 3 PM SKY (%).........52 61 69 WEATHER COV..... WEATHER TYPE....NONE NONE NONE TEMP............49 62 70 RH..............74 54 42 20 FT WIND......S 6 SE 7 SE 7 MIX HGT (FT)....300 2700 1600 MIXNG WIND......M M M HAINES INDEX....M M M $$ FORECASTER...COGIL REQUESTED BY...ANDY ROBY TYPE OF REQUEST...PRESCRIBED .TAG 20110412.S16A1.01/DMX