What weather phenomena can a Convective SIGMET indicate?

A Convective SIGMET is specifically designed to provide information about significant weather phenomena related to convective activity, primarily severe thunderstorms. These advisories are issued to warn pilots of conditions that are particularly hazardous due to the intensity or structure of the storm. Severe thunderstorms typically produce tornadoes, hail, and localized very strong winds, all of which can pose serious risks to aviation.

While heavy rain is often associated with severe thunderstorms, a Convective SIGMET focuses on the severe nature of the storms themselves rather than just rainfall. Fog and wind shear are typically addressed through other weather reporting systems, as they are not limited to or primarily linked with convective activity. This distinction is important for pilots who rely on these advisories for safety during flight operations.