squall

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squall

a sudden strong wind or brief turbulent storm

Squall

 

a sudden, brief increase in wind force that is accompanied by changes in wind direction. Wind velocity in a squall often exceeds 20–30 m/sec. A squall lasts several minutes, sometimes with a succession of gusts. Squalls may occur with the approach of storm clouds or clouds preceding atmospheric cold fronts and are often attended by showers, hail, or thunderstorms. Violent squalls can cause great destruction.

squall

[skwȯl]
(meteorology)
A strong wind with sudden onset and more gradual decline, lasting for several minutes; in the United States observational practice, a squall is reported only if a wind speed of 16 knots (8.23 meters per second) or higher is sustained for at least 2 minutes.

squall

A sudden and rapid increase in wind speed by at least two units on Beaufort's scale, which lasts for at least one minute. It is normally associated with cumulonimbus clouds. A squall is indicated by the symbol image on weather charts.