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Frost/Freeze in Foothills of the Northern Blue Mountains of Oregon, Oregon
Frost/Freeze April 20, 2023 · Foothills of the Northern Blue Mountains of Oregon, Oregon
What the National Weather Service wrote
The ASOS KPDT at the Pendleton Airport reported temperatures at to below freezing between 0405 to 0635 PDT on April 20th. The mesonet EW7176 Adams 4W reported temperatures at to below freezing between 0215 to 0700 PDT on April 20th.
The wider storm
A persistent cold airmass near the surface and clear skies in the morning resulted in freezing morning lows in the Eastern Columbia River Gorge, areas of the Blue Mountain Foothills, and the Yakima/Kittitas valleys the morning of April 20th.
Source: NOAA Storm Events Database, event 1095182. Narratives are written by the National Weather Service forecast office that issued the report.
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