The National Weather Service issued an extreme heat warning at 1:06 p.m. on Saturday valid from Sunday noon until Tuesday 10 p.m. for Eastern Columbia River Gorge of Oregon, Lower Columbia Basin of Oregon and Foothills of the Northern Blue Mountains of Oregon.

The weather service states to prepare for, "Dangerously hot conditions with temperatures of 100 to 103 degrees expected, with the hottest conditions Monday and Tuesday. This will pose a moderate to major risk of heat-related illness."

"Heat related illnesses increase significantly during extreme heat events," comments the weather service.

Heat wave safety tips: Stay safe with these recommendations from the weather service

Stay hydrated: Keep yourself well-hydrated by drinking plenty of fluids.

Find cool shelter: Stay in an air

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