FNUS73 KLSX 141246 FWSLSX SPOT FORECAST FOR MARK TWAIN LAKE...CORPS OF ENGINEERS NATIONAL WEATHER SERVICE ST LOUIS MO 746 AM CDT TUE APR 14 2009 FORECAST IS BASED ON IGNITION TIME OF 0930 CDT ON APRIL 15. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... HIGH PRESSURE WILL MOVE INTO THE REGION TONIGHT CAUSING CLOUDS AND WIND SPEEDS TO DECREASE. WINDS ON WEDNESDAY MORNING WILL BE RELATIVELY LIGHT OUT OF THE NORTH NORTHEAST...BUT SHIFT SLOWLY OUT OF THE NORTHEAST BY LATE MORNING. TEN HOUR DRY FUELS ON DRY DAYS HAVE FALLEN INTO THE 10-15 PERCENT RANGE. .WEDNESDAY... SKY/WEATHER.........MOSTLY SUNNY. PATCHY FROST EARLY IN THE MORNING. CWR.................0 PERCENT. TEMPERATURE.........49 AT IGNITION...MAX 64. RH..................68 PERCENT AT IGNITION...MIN 35 PERCENT. WIND...EYE LEVEL....NORTHEAST WIND AROUND 5 MPH SHIFTING TO THE EAST LATE IN THE AFTERNOON. WIND...20 FT........WINDS NORTHEAST AT 5 MPH AT IGNITION...OTHERWISE NORTHEAST WIND AROUND 5 MPH SHIFTING TO THE EAST LATE IN THE AFTERNOON. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2200 FT AGL. TRANSPORT WIND......NORTHEAST AROUND 10 MPH. VENTILATION RATE....POOR (5027 M 2/S). $$ FORECASTER...BRITT REQUESTED BY...SHELLY HOWALD TYPE OF REQUEST...PRESCRIBED .TAG 20090414.MARKT.02/LSX