What must GWO TWR advise ZAE about?

The correct answer emphasizes the importance of communication between air traffic control units. Advising ZAE about the runway in use and significant weather changes is critical for several reasons.

When controllers inform each other about the runway being used, it allows for proper coordination of aircraft movements and helps avoid potential conflicts. Additionally, significant weather changes, such as strong winds, storms, or visibility issues, can impact flight operations and require immediate awareness for safety planning. This information is vital for ZAE to make informed decisions regarding aircraft departures and arrivals, ensuring overall safety and efficiency in the airspace.

This response helps clarify how effective inter-unit communication regarding runway usage and weather impacts contributes to operational safety and efficiency.