FNUS73 KDMX 291544 FWSDMX SPOT FORECAST FOR BILSLAND ISU...IOWA STATE UNIVERSITY NATIONAL WEATHER SERVICE DES MOINES IA 1044 AM CDT FRI APR 29 2011 FORECAST IS BASED ON IGNITION TIME OF 1130 CDT ON APRIL 29. 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... A SOUTHEAST FLOW AT THE SURFACE WILL INCREASE TODAY TO 15-30KTS WITH HIGHER GUSTS IN RESPONSE TO A LOW PRESSURE SYSTEM MOVING IN FROM THE WESTERN PLAINS. AS THE LOW PRESSURE SYSTEM MOVES IN TONIGHT IT WILL BRING A COLD FRONT ACROSS CENTRAL IOWA. SHOWERS AND SCATTERED THUNDERSTORMS WILL ACCOMPANY THE FRONTAL BOUNDARY THIS EVENING INTO SATURDAY MORNING. PLEASE REMEMBER TO PLACE YOUR SPOT REQUESTS FOR ANY BURNS THE NIGHT BEFORE...EVEN IF IT IS JUST FOR PLANNING PURPOSES. REQUESTS JUST HOURS BEFORE A BURN SHOULD BE AVOIDED. .TODAY... SKY/WEATHER.........SUNNY (20-30 PERCENT) THEN BECOMING PARTLY SUNNY (55-65 PERCENT). MAX TEMPERATURE.....AROUND 68. MIN HUMIDITY........42 PERCENT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2200 FT AGL INCREASING TO 2900 FT AGL IN THE AFTERNOON. MIXING WINDS........SOUTHEAST 7 TO 13 MPH INCREASING TO 29 TO 35 MPH. SMOKE DISPERSAL.....GOOD (59900 KNOT-FT) INCREASING TO GOOD (85600 KNOT-FT) LATE IN THE AFTERNOON. WIND (20 FT)........SOUTHEAST WINDS 5 TO 12 MPH INCREASING TO 16 TO 24 MPH LATE IN THE MORNING. TIME (CDT) 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........7 4 3 19 39 45 50 61 WEATHER COV..... WEATHER TYPE.... TEMP............58 61 62 64 66 67 67 66 RH..............47 49 48 45 42 42 42 45 20 FT WIND DIR..SE SE SE SE SE SE SE SE 20 FT WIND SPD..12 16 18 20 21 22 23 24 20 FT WIND GUST.15 20 25 30 30 30 30 30 MIX HGT (KFT)...1.7 1.9 2.2 2.4 2.6 2.9 2.9 2.8 MIXNG WIND DIR..SE SE SE SE SE SE SE SE MIXNG WIND SPD..22 22 22 24 26 29 32 35 HAINES INDEX....4 4 4 4 4 4 4 4 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE IN THE EVENING. CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. MIN TEMPERATURE.....AROUND 53. MAX HUMIDITY........80 PERCENT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2800 FT AGL. MIXING WINDS........SOUTHEAST 29 TO 36 MPH DECREASING TO 24 TO 25 MPH IN THE LATE EVENING AND OVERNIGHT. SMOKE DISPERSAL.....GOOD (87200 KNOT-FT) DECREASING TO POOR (28000 KNOT-FT) IN THE LATE EVENING AND OVERNIGHT. WIND (20 FT)........BREEZY. SOUTH WINDS 17 TO 25 MPH DECREASING TO 8 TO 15 MPH AFTER MIDNIGHT. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE LATE EVENING AND OVERNIGHT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........66 76 80 83 86 89 WEATHER COV..... S CHC CHANCE CHANCE CHANCE WEATHER TYPE....NONE NONE RNSHWR RNSHWR RNSHWR RNSHWR TEMP............66 62 60 58 56 55 RH..............52 60 64 69 74 77 20 FT WIND......SE 25 SE 23 S 21 S 20 S 15 S 10 20 FT WIND GUST.35 30 30 25 20 15 MIX HGT (FT)....2800 1800 1300 1200 1000 1000 MIXNG WIND......SE 36 SE 29 SE 24 SE 25 SE 25 SE 25 HAINES INDEX....4 3 3 3 3 3 $$ FORECASTER...BOKSA REQUESTED BY...RYAN HARR TYPE OF REQUEST...PRESCRIBED .TAG 20110429.BILSL.01/DMX