Pineapple Express
Proper noun
Meaning
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.
Examples
A well-known atmospheric river is the "Pineapple Express."
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.
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.