FNUS73 KLSX 231745 FWSLSX SPOT FORECAST FOR DELAIR...USFWS NATIONAL WEATHER SERVICE ST LOUIS MO 1245 PM CDT WED MAR 23 2011 FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON MARCH 24. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A COLD FRONT WILL MOVE THROUGH THE REGION THIS AFTERNOON BRINGING COOLER TEMPERATURES AND HIGHER RELATIVE HUMIDITY VALUES. TEMPERATURES WILL BE MUCH COOLER ON THURSDAY WITH AFTERNOON HIGHS EXPECTED IN THE LOWER 40S. .THURSDAY... SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. TEMPERATURE.........35 AT IGNITION...MAX 44. RH..................64 PERCENT AT IGNITION...MIN 48 PERCENT. WIND...EYE LEVEL....WINDS NORTH AROUND 3 MPH AT IGNITION. WINDS WILL GRADUALLY BECOME NORTHEAST AROUND 5 MPH BECOMING LIGHT IN THE AFTERNOON. WIND...20 FT........WINDS NORTH AT 10 MPH AT IGNITION AND WILL GRADUALLY BECOME NORTHEAST WIND 6 TO 11 MPH AND BECOME LIGHT LATE IN THE AFTERNOON. MIXING HEIGHT.......AROUND 2500 FT AGL AT IGNITION...4600 FT AGL AT MAX HEATING. TRANSPORT WIND......NORTH AROUND 15 MPH. $$ FORECASTER...TILLY REQUESTED BY...CANDY CHAMBERS TYPE OF REQUEST...PRESCRIBED .TAG 20110324.DELAI.01/LSX