Excessive Heat — Southern Blue Mountains, Oregon

2021-06-26 to 2021-06-30 · Southern Blue Mountains, Oregon

Event narrative

Nearly all RAWS stations across the zone recorded consecutive daily high temperatures over 95 degrees through the period, with several sites recording consecutive days of daily high temperatures over 105 degrees.

Wider weather episode

A strong upper level ridge of high pressure and a surface thermal trough brought several days of record high temperatures across the PacNW, with many locations in the lower and higher elevations experiencing extreme heat risk during this event. The multiple days of extreme heat risk has been attributed to several fatalities across the region.

Source: NOAA Storm Events Database, event_id 969133. Narrative written by the NWS forecast office that issued the report.