Excessive Heat — Chinle Valley, Arizona

2017-06-17 to 2017-06-22 · Chinle Valley, Arizona

Event narrative

The high of 97 in Canyon de Chelly on June 17 tied record last set in 2002.

The high of 103 in Canyon de Chelly on June 23 broke the record of 101 last set in 2012.

Wider weather episode

Very strong high pressure aloft developed across the Desert Southwest in mid to late June. This lead to prolonged excessive heat across the lower deserts of northern Arizona. High temperatures exceeded 110 over the lower elevations of Yavapai County and along the Colorado River in the Grand Canyon. Numerous high temperature records were tied or broken, even at higher elevations.

Source: NOAA Storm Events Database, event_id 707225. Narrative written by the NWS forecast office that issued the report.