A strong wind characterized by a sudden onset in which the wind speed increases at least 18 mph (16 knots, 30 km/h) and is sustained at 25 mph (22 knots, 41 km/h) or more for at least one minute. These often occur from thunderstorms, where the term "squall line" originates. However, the term "squall" only refers to the wind speed increase, not any other associated weather. In the image, the low arcing clouds are not the squall line but mark the approximate location of the squall."
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"Squall
A strong wind characterized by a sudden onset in which the wind speed increases at least 18 mph (16 knots, 30 km/h) and is sustained at 25 mph (22 knots, 41 km/h) or more for at least one minute. These often occur from thunderstorms, where the term "squall line" originates. However, the term "squall" only refers to the wind speed increase, not any other associated weather. In the image, the low arcing clouds are not the squall line but mark the approximate location of the squall."