Mt. St. Helens and family members

I have been following on the net today the volcanic activities of Mt. St. Helens in Washington State. My uncle has lived in Richland, WA since I believe the '70s and has seen the devastation of the big Mt. St. Helens eruption from back in 1980. If memory serves, I think Richland got a healthy dusting of volcanic ash back then but not much damage. Correct me if I'm wrong, Uncle.