How often are Convective SIGMETs issued?

Convective SIGMETs are specifically designed to provide timely and critical information regarding hazardous convective weather phenomena, such as thunderstorms, heavy precipitation, and turbulent air that may affect aviation safety. These significant weather advisories are issued hourly at 55 minutes past the hour. This systematic issuance ensures that pilots and air traffic controllers have access to the most current information to make informed decisions regarding safety and route planning in the presence of convective activity.

While there may be other timeframes for different types of aviation weather products, the structure of issuing Convective SIGMETs at a regular hourly interval provides consistent and reliable updates necessary for maintaining safety in flight operations.