: a sudden, brief, and intense storm of wind and rain : a squall accompanied by rain The weather was almost bad enough to have pleased Omar; we bucketed up and down and to and fro in the rain squalls.— Graham Greene.
Is there such thing as a rain squall?
They are usually associated with active weather, such as rain showers, thunderstorms, or heavy snow. Squalls refer to the increase to the sustained winds over that time interval, as there may be higher gusts during a squall event. They usually occur in a region of strong sinking air or cooling in the mid-atmosphere.
Why is it called a squall?
It includes several briefer wind-speed changes, or gusts. A squall is often named for the weather phenomenon that accompanies it, such as rain, hail, or thunder; a line squall is one associated with a squall line of thunderstorms that is often hundreds of kilometres long.