Excessive Heat in Eastern Columbia River Gorge, Oregon

Calculated heat risk values at the Dallesport Airport GHCN site recorded temperatures that met or exceeded excessive heat warning criteria on the 8th.

High pressure from the four corners region extended northward into the Pacific Northwest, which resulted in well above normal temperatures across the region for several days. Many stations saw temperatures exceed critical heat risk thresholds, while stations in some mountain zones saw high temperatures consecutively meet or exceed 95 degrees under the strengthening high pressure aloft.