Surface Weather Observer Practice Test 2025 - Free Surface Weather Observer Practice Questions and Study Guide

Question: 1 / 400

A gust is reported when the wind speed fluctuates at least how many knots between peaks and lulls?

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10

A gust is defined as a brief increase in wind speed that occurs when there is a fluctuation in wind speeds. To qualify as a gust, the variation must be at least 10 knots between the highest peak of wind speed and the lowest lull. This threshold helps meteorologists distinguish between steady wind and significant short-term variations, which can have implications for weather reporting and safety, especially in aviation. Wind fluctuations of 10 knots or more provide meaningful information about changing weather conditions that could affect operations and outdoor activities. The definition is consistent with standard meteorological practices used for reporting wind conditions.

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