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California Heat Wave Intensifies, Shattering Records and Heightening Fire Risks

Unprecedented October temperatures prompt extended heat warnings, power shutoffs, and increased wildfire threats across the state.

Douglas Williams leads his son, DJ, 2, through a pool of water at Crissy Field in San Francisco on Tuesday.
FILE: Daryl Luppino pushes off after taking a break during his bike ride on July 9, 2021, near Palm Springs, Calif.
People hang out in Dolores Park in San Francisco during a warm weather day on Oct. 4, 2023.

Overview

  • Triple-digit temperatures have hit various regions, with some areas experiencing their hottest October days on record.
  • Excessive heat warnings have been extended through Thursday, with inland areas potentially reaching up to 110 degrees.
  • The heat wave is exacerbating wildfire risks, leading to new evacuations and power shutoffs to mitigate fire hazards.
  • High pressure systems and offshore winds are contributing to the extreme heat, drying out landscapes and reducing humidity.
  • Health officials urge residents to stay hydrated and indoors, as the prolonged heat poses significant health risks.