I’m from Oregon. People fly through clouds thicker than this most days of the winter.
What’s your point?
This particular volcanic formation was also puffing out invisible fluorine gas. There was enough of it in Iceland to put vast areas off limits for watering animals.
The point you were going to make is, I believe, that people in Oregon have some sort of superior knowledge regarding volcanos since, after all, you blew one up.
Sorry, different kind of volcano.
While perhaps thicker, I'm quite certain that your Oregon clouds don't have the abrasive characteristics of a volcanic ash cloud.
Water vapor is a LOT less abrasive to jet engines than pumice stone. The water also doesn’t melt in the combustion chamber and deposit on the turbine blades.