ABSTRACT
Many airports have operational constraints beyond simply landing minimum requirements and facilitating efficient and safe approaches. As with most weather-related disruptions, fog can occur at any time of the year, and some geographic areas are more prone to it than others. The most common causes stem from some type of weather disruption, which is often compounded by an Air Traffic Control (ATC) initiative. There are two dramatically different ways of dealing with disruptions to the network: proactive and reactive. Proactive management is far more desirable and is characteristic of situations where a forecast event may enable the airline to get ahead of any potential disruptions, often reducing the schedule to some degree. Lines of thunderstorms are more predictable in terms of speed and movement, and it is easier to forecast when they might impact a critical airport or begin interfering with ATC flows.
