In meteorology, a williwaw is a sudden blast of katabatic wind descending from a mountainous coast to the sea, particularly in the Strait of Magellan or the Aleutian Islands. The term originates in the Alaska Panhandle region, where what are also known as outflow winds pour from the heads of the coastal inlets to the many channels of the offshore archipelago. Farther south such winds are also known as squamishes.

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williwaw