English

Proper noun

Pineapple Express

1. (informal, meteorology) The jetstream and accompanying strong, moist airflow from the vicinity of the Hawaiian Islands to the west coast of North America.
   • 1990, Hill Williams, "Another Nasty November," Seattle Times, 1 Dec. (retrieved 19 Oct 2008):

     A warm, wet rainstorm—the notorious "Pineapple Express"—hit Western Washington the weekend before Thanksgiving in 1986.

Hypernyms

• atmospheric river