At our just below the cloud line, yellow lights kept intensifying and dimming on a dark night just above the mountain range.,

I noticed an unusually bright light in the low sky, close to the horizon. The lights intensity grew brighter, then another light appeared next to it and also got brighter. The first light dimmed and disappeared. This kept happening at intervals over at least 90 minutes in the early morning hours of June 4th, 2022. There was a low lying cloud at one point that was even illuminated.
This is not the first time I have seen this phenomena from my porch overlooking the Yakima Valley. The first occurrence was roughly 18 months ago and had 7-9 objects in crowded cluster that did the same thing I witnessed last night. The color emitted was yellow and then went to a white very briefly before disappearing.
I saw 3 black helicopters in formation earlier in the afternoon prior to this most recent sighting for your information and not sure one has anything to do with the other but thought it might be relevant to mention as usually you don’t see these types of aircraft overhead.