noun
or wil·ly·waw ˈwilēˌwȯ ; or wul·li·wa ˈwəl-
( -s )
Etymology: origin unknown
1.
a. : a sudden violent gust of cold land air common along mountainous coasts of high latitudes
b. : any sudden violent wind
2. : a violent commotion or agitation : storm , tempest
kicking up a great williwaw of dust — Time