Pineapple Express

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 December 1, Hill Williams, “Another Nasty November”, in Seattle Times, retrieved 19 October 2008:

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

Hypernyms

• atmospheric river