Skip to content
Weather & Science

California Braces for 109-Degree Heat That Will Test Grid

  • Power prices are surging along with temperatures in US West
  • Grid operator warns generators to postpone maintenance work
Updated on

California and parts of the Pacific Northwest will wilt under near-record heat this week as a high-pressure dome builds across the region, taxing power supplies and aggravating an historic drought.

An excessive-heat watch stretches the length of California’s Central Valley where temperatures could reach 109 degrees Fahrenheit (43 Celsius) as soon as Tuesday, the National Weather Service said. A second pocket of extreme warmth is forecast for western Washington.