A gust is reported when the wind speed fluctuates rapidly with a variation of at least how many knots between peaks and lulls?

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A gust is characterized by a notable and rapid increase in wind speed, specifically when there is a fluctuation of at least 10 knots between the peaks and the lulls. This definition is crucial for understanding how gusts are reported in aviation weather observations, as they can significantly affect the performance of aircraft during takeoff, landing, and in-flight operations.

The 10-knot threshold is derived from standard meteorological practices and reflects a level of wind variation that is significant enough to impact operational safety and decision-making in aviation. Knowledge of gusts and their intensity helps pilots anticipate and manage turbulence and other wind-related challenges during flight. The identification of a gust is, therefore, reliant on this specific fluctuation standard, which plays a vital role in ensuring safety in aviation operations.

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