ATPL Canadian Meteorology, Radio Aids to Navigation, and Flight Planning (SAMRA) 2026 – 400 Free Practice Questions to Pass the Exam

A squall is characterized by a significant increase in wind speed that lasts for a longer duration, typically associated with thunderstorms or severe weather conditions. Unlike a gust, which is a brief, sudden increase in wind speed that can last only a few seconds, a squall can maintain elevated winds for a short period that usually exceeds one minute and can often continue for several minutes to hours. This persistent wind change can have profound effects on weather conditions and is critical for pilots to understand while planning flights or managing in-flight operations.

The other choices refer to characteristics that do not define a squall. A squall is not necessarily weaker than a gust; in fact, it can produce much stronger winds. Notably, a squall can occur at any time of day, not just at night, and it is not classified as a persistent wind in the same way that steady winds are categorized. Understanding that a squall signifies a more prolonged and sustained wind increase is essential for effective flight planning and safety considerations.