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- Whenever wind's path is obstructed by objects such as buildings, mountains, or trees, it hugs the object, friction increases, and the wind slows. Once it passes the object and flows freely again, the speed increases rapidly (gusts).
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Apr 9, 2018 · A wind gust is a sudden, seconds-long burst of high-speed wind that's followed by a lull. Whenever you see wind gusts in your forecast, it means the National Weather Service has observed or expects wind speeds to reach at least 18 mph, and the difference between the peak winds and the lulls to vary by 10 mph or more.
Discover the science behind the sudden bursts of wind that are known as gusts.
Jan 9, 2012 · A wind gust is a sudden, brief increase in the speed of the wind followed by a lull. According to National Weather Service observing practice, gusts are reported when the peak wind speed reaches at least 18 mph and the variation in wind speed between the peaks and lulls is at least about 10 mph.
May 22, 2017 · Wind Gust: Is a sudden, brief increase in speed of the wind. According to U.S. weather observing practice, gusts are reported when the peak wind speed reaches at least 16 knots and the variation in wind speed between the peaks and lulls is at least 9 knots.
A wind gust or just gust is a brief, sudden increase in the wind speed. It usually lasts for less than 20 seconds, briefer than a squall, which lasts minutes. A gust is followed by a lull (or slackening) in the wind speed. [1] Generally, winds are least gusty over large water surfaces and most gusty over rough land and near high buildings.
Feb 7, 2020 · A wind gust is a sudden temporary increase in ongoing wind speed. “ Wind speed refers to the average speed over a given period, while wind gusts are a rapid increase in strength of the wind relative to the wind speed at the time .”
Includes winter storm conditions of sustained winds or frequent gusts of 35 mph or more that cause major blowing and drifting of snow, reducing visibility to less than one-quarter mile for 3 or more hours. Extremely cold temperatures often are associated with dangerous blizzard conditions.
