California Braces for Flooding Risks from 'Pineapple Express' Weather System

U.S. officials are alerting Southern California residents about the risk of significant flooding and elevated river levels following heavy rainfall during Christmas, with additional rain expected in the upcoming days.

The National Weather Service has indicated that the current rainfall is associated with an "atmospheric river" rich in moisture, which can result in substantial rainfall over a short duration.

What is the 'Pineapple Express'?

The 'Pineapple Express' refers to a weather phenomenon that transports dense moisture from tropical regions in Hawaii to the U.S. West Coast. Forecasts suggest that the anticipated rainfall could match what typically accumulates in several months across California.

Authorities have cautioned about the potential for severe flash flooding, particularly in areas previously impacted by wildfires, where the soil is compromised and less capable of absorbing heavy rainfall.

Precautionary Measures

California Governor Gavin Newsom has declared a state of emergency in multiple counties, including Los Angeles, to safeguard residents and mitigate the risks associated with the heavy rains.

Local police have issued evacuation orders for over 200 homes and provided warnings to residents in surrounding neighborhoods. Rescue operations are underway in San Bernardino County for individuals stranded by rising waters.

Santa Monica and the Los Angeles Basin have been identified as particularly vulnerable to flooding, and authorities have warned of potential road blockages due to debris, advising drivers to proceed with caution and avoid affected areas.

Traffic Situation

Heavy rainfall has led to significant traffic congestion across Los Angeles, with local news outlets showing images of vehicles halted in the rain as some roads remain closed, highlighting the storm's impact on daily commutes.