Growing up was always told the 3 sisters in Oregon were the ones to watch out for. Far as mt hood it all depends which way she blows. If it’s side explosion like St. Helens Portland is all but gone. If it blows towards Hood River I guess it potentially plug up the Columbia river. Bunch of what if’s
Around here it’s Glacier Peak they say is more concern than Rainier but Rainier has a ton of people in its path.