When is a CWA typically issued?

A CWA, or Center Weather Advisory, is primarily issued to provide timely information about hazardous weather conditions that are anticipated to affect flight operations. The issuance of a CWA is particularly crucial because it focuses on short-term weather phenomena that are expected to occur within the near future, typically within the next few hours. This allows air traffic controllers and pilots to prepare for imminent weather changes that could impact safety and operational decisions.

The CWA is designed to offer pilots and air traffic personnel essential updates, facilitating situational awareness regarding potentially hazardous weather, such as thunderstorms, turbulence, or low visibility, which could lead to significant operational challenges if not anticipated. By focusing on short-term forecasts, the CWA serves as a critical tool for maintaining safety in the airspace.

In contrast to the other options, a CWA is not limited to severe weather events only, is not intended for long-term predictions, and is not specifically issued upon request from pilots. Instead, it is a proactive measure implemented by meteorological authorities to communicate emerging weather threats effectively and promptly.