Excessive Heat — Foothills of the Northern Blue Mountains of Oregon, Oregon

2023-07-20 · Foothills of the Northern Blue Mountains of Oregon, Oregon

Event narrative

Calculated heat risk values at the The Pendleton GHCN recorded temperatures that met or exceeded excessive heat warning criteria on July 20th.

Wider weather episode

A ridge of high pressure built over the region accompanied by a near surface thermal trough which lead to a few lower elevation areas reaching critical heat risk thresholds while the mountain zones saw several days of high temperatures meet or exceeding 95 degrees.

Source: NOAA Storm Events Database, event_id 1122455. Narrative written by the NWS forecast office that issued the report.