Thursday, December 25, 2025

Wind Advisory in Effect for Pasadena and Altadena Through Thursday Afternoon

The National Weather Service Los Angeles/Oxnard office issued a wind advisory early Thursday warning Pasadena and other Los Angeles County communities to expect strong south to southeast winds through 3 p.m.

The advisory forecasts sustained winds of 20 to 35 mph with gusts up to 55 mph across the San Gabriel Valley, including Pasadena. The weather service cautioned that gusty winds will blow around unsecured objects and that very wet soils this week increase the risk of downed trees.

Officials said travel will be difficult, especially for high-profile vehicles. Winds this strong can make driving hazardous, and residents are urged to use extra caution.

The advisory is part of a broader set of warnings across Southern California tied to a powerful atmospheric river storm. High wind warnings remain in effect for mountain and coastal regions, including the western and eastern San Gabriel Mountains, where gusts could reach 80 mph. Other areas under warnings include the Santa Clarita Valley, Catalina and Santa Barbara Islands, and Ventura County.

Impacts from the storm are expected to include widespread downed trees and power lines, property damage, and potential power outages. Mountain passes such as Interstate 5 near the Grapevine are expected to be especially hazardous.

The advisory remains in effect until 3 p.m. Thursday.

For more information, visit the National Weather Service Los Angeles office at weather.gov/LosAngeles.