AccuWeather.com reports a brief bout of record-smashing heat is set to ascend on the Pacific Northwest Thursday and Friday before a slight cooldown this weekend.

Seattle did not reach the 90-degree mark once during the summer of 2011, and the city has already had two 90-degree-plus days this August.

Another bout of 90-degree weather is set to affect Seattle while Portland, Ore., rises over the century mark for the second time this summer.

The cause of the heat wave is a large ridge of high pressure which is currently centered over the Desert Southwest. As a strong front brings a fall-like air mass into the Great Lakes and Upper Midwest, the aforementioned ridge will pump into the Pacific Northwest sending temperatures soaring Thursday and Friday.

On Thursday, temperatures will soar into the middle to upper 90s from Wenatchee and Seattle, Wash., to Pendleton and The Dalles, Ore.