Meteorology · Thunderstorms — Squall Line
A squall line is best described as:
- AA line of active thunderstorms, often ahead of or along a cold front, bringing a band of strong gusty winds and heavy showers✓ Correct
- BA single isolated fair-weather cumulus
- CA zone of widespread fog
- DA stationary high-pressure ridge
Explanation
A squall line is an organized line of thunderstorms that can extend for hundreds of miles, frequently ahead of a cold front. It produces a band of severe gusts, wind shifts, heavy rain, lightning, and sometimes waterspouts as it sweeps across.
Authority: Bowditch (Pub. No. 9), squall lines; WMO
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