Excessive Heat in Siskiyou Mountains & Southern Oregon Cascades, Oregon

Persistent high pressure brought excessive heat to the Siskiyou Mountains and Southern Oregon Cascades for 5 consecutive days from July 5th through July 9th, and on July 13th. Advisory conditions occurred from July 10th through July 12th. During the excessive heat, low temperatures were generally in the lower 50s to mid 60s, and high temperatures in the lower 90s to 105 degrees. But, a peak reading was recorded on July 6th of 110 degrees at the Buckhorn Springs RAWS.

A persistent ridge over the western states with an associated thermal trough extending from northern California into southern Oregon brought a long-duration heat wave.