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As a heat wave engulfs the Bay Area, temperatures at kickoff are expected to be around 90 degrees in Santa Clara.—Joseph Dycus, Mercury News, 13 June 2026 The consequences of extreme heat aren’t taken as seriously as extreme cold, even as summer heat waves become more frequent and intense as the climate changes, experts said.—Tami Luhby, CNN Money, 13 June 2026 An extreme heat warning is already in place for the Portland, Oregon, area where a life-threatening heat wave is expected Sunday through Tuesday with temps reaching 95 to 100 degrees.—Kyle Reiman, ABC News, 13 June 2026 That’s in sharp contrast to Northern California, which saw a record-breaking March heat wave melt mountain snowpack early.—Los Angeles Times, 13 June 2026 See All Example Sentences for heat wave