This is unreal. The 500-mb height on the 00Z Medford, OR sounding registered at 603 dm, crushing the previous all-time high of 599 dm.

By my count, this is the third episode with an anticyclone featuring >= 600-dm heights this summer, which used to be a very rare feat.#orwx pic.twitter.com/sNatmFAA2F

— Jaret Rogers (@JaretWx) September 7, 2020