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Winter Heat Wave Sends Temperatures into the 90s in Southern California

March 16, 2026

Southern California is experiencing an unusual March heat wave, with temperatures reaching the low-to-mid 90s Fahrenheit, approximately 20 degrees above normal for this time of year. The unseasonable warmth stems from high atmospheric pressure combined with an absence of typical cooling ocean breezes from the Pacific. Local authorities have responded by establishing cooling facilities and issuing public health advisories encouraging residents to stay hydrated and limit daytime outdoor exposure.

Who is affected

  • Southern California residents, particularly in Los Angeles County and the San Fernando Valley
  • Outdoor construction workers at job sites including near MacArthur Park
  • People with mobility challenges, such as wheelchair users like Zack Marquez
  • Celebrities and attendees arriving for Sunday's Oscars ceremony
  • Northern California residents in the San Francisco and Sacramento areas (starting next week)

What action is being taken

  • Officials are opening cooling centers
  • Authorities are urging residents to drink water and avoid outdoor daytime activities
  • Construction sites are providing drinking water and electrolyte packets to workers
  • Shade structures are being erected at job sites
  • Supervisors are encouraging overheated workers to sit in air-conditioned vehicles and take breaks
  • Residents like Zack Marquez are taking care of errands before peak heat hours

Why it matters

  • This matters because the unseasonably hot temperatures in mid-March put people at higher risk for heat-related illness, occurring at a time when residents are not yet acclimated to summer conditions. The extreme deviation from normal temperatures (20 degrees above average) is significant enough that multiple temperature records across LA County are likely to be tied or broken, indicating an unusual weather pattern that requires public health precautions and workplace safety measures.

What's next

  • No explicit next steps stated in the article

Read full article from source: The San Diego Voice & Viewpoint