Multiple choice

Squall is a sudden change in wind speed exceeding _______ knots, lasting for more than one minute.

  1. 14

  2. 24

  3. 34

  4. 44
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A squall is officially defined in aviation meteorology as a sudden, significant increase in wind speed by at least 15 knots (reaching 21 knots or more), sustained for at least 2 minutes. However, the specific threshold of 24 knots is commonly used in many operational definitions. Squalls are associated with convective weather and can pose serious hazards to aircraft during takeoff, landing, and low-altitude operations.

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