For safety and performance factors, aircraft must arrive and depart into the wind. Centennial Airport’s primary runways are angled with the predominant wind directions of north and south. During typical fair-weather days for the area around Centennial Airport, the wind direction is predominately from the south. This puts the airport in a “South Flow” configuration with aircraft arriving from the north and departing towards the south. During inclement weather days (low clouds, high winds, precipitation, etc.), the wind direction is predominantly from the north and the airport operates in a “North Flow” configuration with aircraft arriving and departing towards the north. Approximately 55 percent of the traffic at Centennial Airport arrives and departs the airport towards the south.