An extreme heat watch was issued by the National Weather Service on Wednesday at 2:50 a.m. valid from Friday 11 a.m. until Monday 5 a.m. for Lower Columbia River, Tualatin Valley, West Hills and Chehalem Mountains, Inner Portland Metro, Outer Southeast Portland Metro, West Central Willamette Valley, East Central Willamette Valley, Benton County Lowlands, Linn County Lowlands, Lane County Lowlands, West Columbia River Gorge of Oregon above 500 ft and Clackamas County Cascade Foothills.

The weather service says, "Dangerously hot conditions with temperatures of 95 to 100 degrees F possible. Overnight temperatures will range from 60 to 68 degrees F on Friday night and up to 70 degrees on Saturday night, warmest for locations north of Salem."

"Heat related illnesses increase significantly dur

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