What is the Pineapple Express?
The Pineapple Express can cause as much as 5 inches of daily rainfall
{{#rendered}} {{/rendered}}Hurricane Ida left a trail of devastation after it made landfall in Louisiana overnight Sunday, leaving Americans understandably nervous about other possible weather phenomena — including the Pineapple Express.
The Pineapple Express is a commonly used term for a West Coast phenomenon that results from atmospheric pressure.
Narrow regions in the atmosphere transport moisture from the tropics to northern latitudes in "atmospheric rivers" as part of the water cycle, but can therefore create flood risks.
{{#rendered}} {{/rendered}}IDA BRINGING TORNADO, RAIN THREATS AS IT MOVES INLAND
The Pineapple Express, specifically, is the "river" that runs from Hawaii to the U.S. and Canada’s west coasts, helping to provide the heavy rainfall and snow those regions are known for.
The system, which cools once it hits the continent, can result in five inches of rain in one day, according to the NOAA.
{{#rendered}} {{/rendered}}CALDOR FIRE MOVES CLOSER TO CALIFORNIA'S SOUTH LAKE TAHOE, FORCING MORE EVACUATIONS
The mix of high and low pressure centers over the Pacific makes the Pineapple Express one of the most potent of the "rivers" in the water cycle.
Despite the narrow band that the "river" flows over, the Express empties over a wide range of the West Coast, making it difficult to predict where the effects will hit.
{{#rendered}} {{/rendered}}CLICK HERE TO GET THE FOX NEWS APP
A minor shift of the stream can create a wild difference between rain or snow, and where it actually makes landfall, according to the Weather Network.