Washington and Oregon brace for brutal weekend as new heatwave arrives

A sense of déjà vu hung in the air as Washington and Oregón faced scorching temperatures in the midst of the region’s second major heatwave this summer.

With temperatures in cities across the Pacific north-west expected to hit triple digits, excessive heat warnings were in place throughout most of Washington and western Oregon on Thursday, according to the National Weather Service.

Although the temperatures were not expected to be as severe as during the heatwave in late June – some areas exceeded 115F (46C) – several cities could break their heat records.

En Seattle, the temperature was set to reach 96F (36C) el viernes, while the record for that day is only 92F (33C), according to Eric Schoening, a National Weather Service meteorologist. Yakima, in southern Washington, could hit 104F (40C) viernes.

In Beaverton, Oregón, where temperatures could reach 104F Thursday (2F above the daily record) and 102F (39C) el viernes, the community center was offering overnight air-conditioned shelter for those in need Wednesday through Saturday.

Portland was expected to hit 104F (40C) el jueves por la tarde, an extreme high as the city typically sees temperatures in the 80s during August. During the June heatwave, Portland broke records for several days before hitting 116F (46C).

Oregon governor Kate Brown and Portland mayor Ted Wheeler declared a state of emergency earlier in the week due to the extreme heat.

Brown said in a video posted on Twitter on Wednesday: “Please treat these hot temperatures seriously. Heat related illnesses are preventable. Please learn the symptoms. If you don’t have air conditioning in your home, make a plan right now to find a cool location you can access.”

Seattle mayor Jenny Durkan tweeted Thursday: “Dangerously high temperatures ahead for Seattle.” She included a map of cooling center locations, a list of drinking fountains and advice for staying cool.

Seattle officials said they will be monitoring key infrastructure such as power systems, water systems, roadways and bridges, and will be coordinating outreach teams who can help some of the most vulnerable people deal with the high temperatures.

Officials in Washington and Oregon urged residents to stay hydrated, check on loved ones and make use of the dozens of cooling centers at libraries, community centers and other spaces throughout the region. In Portland, the local transit system was offering free rides to cooling centers during the heatwave.

“Heat can kill. Make a plan to stay cool,” warned a recording sent to Portland residents.

The heatwave comes mere weeks after record-high temperatures resulted in hundreds of deaths across the US Pacific north-west and western Canada. In Oregon, 96 gente were killed in the June heatwave, including a farmworker.

Meteorologists reported that the extreme temperatures came from two pressure systems, while a study from World Weather Attribution determined that the heatwave would have been “virtually impossible without human-caused climate change”.

Officials attributed this week’s heatwave to a high-pressure system or heat dome over the north-east Pacific Ocean. It is expected to move to the east at the end of the weekend, according to Schoening.

Al mismo tiempo, Larry O’Neill, Oregon’s state climatologist, previously told the Guardian: “These sorts of heatwaves are being made worse and more impactful because of climate change.”

Temperatures are expected to peak Friday and Saturday, cool slightly in western Washington and western Oregon on Saturday, and then really start to significantly cool down across the entire area Sunday and Monday, according to Schoening.

Washington and Oregon residents will also have to contend with smoke from fires across Idaho, Washington and British Columbia, according to Schoening. There are air quality concerns due to the smoke, él dijo, but it could also serve to cool the region slightly.

“With that smoke in the air, it will reflect some of that sunlight back into space, so that could help to cool temperatures a few degrees," él dijo.

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