PACIFIC COUNTY — The eastern halves of Pacific and Wahkiakum counties and much of Clatsop County, Ore., are being advised by the National Weather Service in Portland to expect punishingly high temperatures over the next several days.

High pressure will build over the Pacific Northwest this week, particularly impacting Southwest Washington and Northwest Oregon. Temperatures will be very warm and become hot as dry offshore flow develops Monday and strengthens Tuesday. Inland valleys will see temperatures in the upper 80s before rising to around 90 today. Tuesday will be the warmest day of the week, as most areas will reach the upper 90s with some local 100s possible.

The offshore flow weakens Wednesday but only expect a few degrees of relief until Thursday when onshore flow and somewhat cooler marine air returns.

Additionally, easterly winds may bring smoke from the Cougar Creek fire near Mount Adams and the County Line Fire Complex at Warm Springs to the west side valleys. It’s difficult to say just how thick smoke may get but those with breathing difficulties may want to begin preparations for a couple days in a closed indoor environment.

Finally, hot temperatures and very dry humidity will produce conditions ripe for wildfire spread. Please avoid any outdoor burning over the next several days and take care to avoid any careless actions such as throwing away burning materials. Also, ensure recreational vehicles and power tools are in proper working order with fully functional spark arresters. Take great caution while parking vehicles on dry grasses. Campers should stay up to date on campfire restrictions.

Under no circumstances should children or pets be left inside parked vehicles. Make sure outdoor pets and livestock have access to adequate shade and water.

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