Proper noun
Pineapple Express
(informal, meteorology) The jetstream and accompanying strong, moist airflow from the vicinity of the Hawaiian Islands to the west coast of North America.
A well-known atmospheric river is the "Pineapple Express." Source: Internet
The plan’s scenario for a magnitude 7 shake in Victoria considers the “worst case” to be a mid-afternoon shallow crustal earthquake in January following a 3-day Pineapple Express. Source: Internet
We spent the night in Sacramento and then drove in Sunday morning before the Pineapple Express arrived and started dumping copious rainfall at lake-level. Source: Internet