California Braces for Two Pineapple Express Storms: Heavy Rain and Flooding Expected
California residents are preparing for the arrival of two powerful storms known as Pineapple Express, which are expected to bring heavy rain and potential flooding to the state over the next week. These storms, also known as atmospheric rivers, are narrow regions in the atmosphere that transport moisture from the tropics to northern latitudes. When these bands of moisture originate in the tropical Pacific Ocean near Hawaii and focus their energy on the West Coast of the US mainland, they are referred to as Pineapple Express storms.
The upcoming storms, set to hit California starting on Wednesday and lasting a week, will impact all major population centers across the state. The first storm is due to arrive in Northern California on Wednesday, bringing with it 2 to 4 inches of rain in some areas and winds exceeding 30 miles per hour. While this storm is expected to cause urban and small stream flooding in Northern California, it is not predicted to be catastrophic.
The second storm, scheduled to arrive on Sunday, is likely to be more severe. It will bring colder air and heavier rains, potentially resulting in significant snowfall in the Sierra Nevada mountains. Southern California will experience very heavy rainfall, with the potential for up to 7 inches of rain in the Los Angeles region before the storm passes next Wednesday. The second storm poses a greater risk of flooding, as it will intensify an already saturated ground from the first system.
UCLA climate scientist Daniel Swain warns that the second storm could bring two to three times more rain to Southern California than Northern California receives from the first storm. This poses a significant concern for areas already prone to flooding. Swain explains that a potentially record-breaking low-pressure system will intensify as it approaches the coast, increasing the risk of flooding in Southern California.
Residents are advised to take precautions and prepare for potential flooding and strong winds. The storms will impact commuting hours and may result in downed trees and power outages. It is essential to stay safe and cautious during this period of inclement weather.
Overall, California is bracing for the arrival of two Pineapple Express storms, which will bring heavy rain, potential flooding, and strong winds to the state. While the first storm is expected to cause moderate to widespread flooding in Northern California, the second storm poses a greater risk to Southern California, with the potential for record-breaking rainfall. Residents are urged to stay safe and take necessary precautions during this challenging weather period.