What is a SIGMET?

What is a SIGMET?

• A. AIRMET is a weather advisory issued for significant weather phenomena that may affect aviation safety, such as severe thunderstorms, turbulence, icing, or volcanic ash clouds.
• B. A SIGMET, or Significant Meteorological Information, is a weather advisory issued for significant weather phenomena that may affect aviation safety, such as severe thunderstorms, turbulence, icing, or volcanic ash clouds.
• C. An advisory for small aircraft operations only.
• D. A weather bulletin for routine operations.

Answer: (B)

SIGMET stands for Significant Meteorological Information. It’s a weather advisory issued when there are significant weather phenomena that may affect aviation safety, such as severe thunderstorms, turbulence, icing, or volcanic ash clouds, including dust or sand storms. This warning is intended for all aircraft and is meant to prompt avoidance or precautionary routing, rather than routine weather updates. It’s different from other advisories in that it flags non-routine, potentially hazardous conditions rather than general or minor weather.

SIGMET stands for Significant Meteorological Information. It’s a weather advisory issued when there are significant weather phenomena that may affect aviation safety, such as severe thunderstorms, turbulence, icing, or volcanic ash clouds, including dust or sand storms. This warning is intended for all aircraft and is meant to prompt avoidance or precautionary routing, rather than routine weather updates. It’s different from other advisories in that it flags non-routine, potentially hazardous conditions rather than general or minor weather.