 Ramba uchinyora ndima iyi - Musi waMay 18, 1980, rutivi rwokuchamhembe rweGomo reSt. Helens rwakatsvedza ndokubudisa kuputika kukururakagadzira lahar rakaparadza North Fork Toutle River. Lahar yakaparadza inenge SR 504, kusanganisira mabhiriji manomwe pamasere makuru omumugwagwa mukuru, ichisiya chete bhiriji reKid Valley rakamira nemhaka yokuchena kwaro kwakakwana. Chikamu chakasara pakati peTutle neKid Valley chakanga chakavigwa nemarara, asi chakakwanisa kuvhurwazve muna September nemabhiriji eBaley echinguvana nezvimwe zvivako. Motokari dzinoverengeka dzaiva mumugwagwa mukuru dzakaputirwa ne lahar, kubatanidza idzo dzaitakura vamwe vavanhu 57 vakanga vafa pakuputika. 