âItâs unbearableâ: U.S. Pacific Northwest swelters in heat wave By Brendan O'Brien (Reuters) - A historic heat wave baked the U.S. Pacific Northwest where temperatures pushed into the triple digits on Saturday as l... By Brendan OâBrien (Reuters) â A historic heat wave baked the U.S. Pacific Northwest where temperatures pushed into the triple digits on Saturday as local officials warned residents to take precautions while power companies asked users to converse energy. All of Washington and Oregon and parts of Idaho, Wyoming and California were under an excessive ...