Heat dome makes much of country feel like a steam bath

first_imgAs much of the country continues to swelter under a relentless heat wave, the Pacific Northwest remains locked in a mostly cool, cloudy weather pattern.Neither seems willing to budge, because a strong ridge of high pressure camped out over the Midwest won’t allow it.“What that does is, it kind of makes the progression of the weather patterns kind of stagnant,” said Tyree Wilde, a meteorologist with the National Weather Service in Portland.The pattern has created a low-pressure trough over the eastern Pacific Ocean, sending unseasonably cool temperatures toward the Northwest. That trough won’t be able to move farther east until the high-pressure ridge in that direction breaks up, Wilde said.Even before the heat wave to the east arrived, the Northwest saw plenty of unusually cool and wet weather. The average high temperature in Vancouver is 75.7 degrees for the month of July so far, according to Wilde. That’s more than two degrees below the normal high of 78 for the month.Warmer, sunny weather is on tap for this weekend, with temperatures in Vancouver expected to land in the low- to mid-80s both Saturday and Sunday, according to the weather service. Then it’s back to a slight chance of showers for the early part of next week.last_img

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