I don't live in Yakima anymore, I'm 30 miles N in Ellensburg now.
Conditions were fantastic. Before the DX test, WCKY 1530 Cincinnati was in, along with others from the east. The first hour of the DX test was just mush, mixtures of Punjabi music from Vancouver, country from CJWW Saskatoon, oldies from KGEZ in Kalispell, and talk from KOGO San Diego. But I was alerted on the groups.io IRCA board that two DXers in WA and OR had just copied CW/morse code successfully (the "VVV VVV DE WBOB") on 600 during the 10:00 hour. I turned on the livestream on YouTube of the DX test, quickly turned it down when sweeps came on, turned on the Kittitas SDR's audio and way underneath the slop were sweeps. 10 minutes later I heard weak, yet audible, CW. I couldn't believe my ears.
I use an HF SDR receiver that's situated a few miles east in Kittitas (pop. 1000). Antenna is a Wellbrook ANA-1530 omni loop, and the radio is a CloudIQ SDR. The noise level here at CWU is atrocious. It is always S9, every night, all night. Unless I go out into the *FREEZING* cold fall/winter temperatures, in which my hands numb and I freeze my butt off, but when that happens I use the 909X and a Select-a-Tenna loop. It helped me get WHAS last January for the first time! But I don't do that often because of the warm comfort of my home and an SDR that's just a few miles away from me, so I can count new stations that I hear.
They were also heard on an SDR way up in northern British Columbia...probably 2,750 miles or so. And they were also heard in Scotland, some 4K miles from Jacksonville! 50KW and great conditions create opportunities we didn't realize would happen.