A kusa da dutsen mai fitad da wuta, da swirling ash barbashi a cikin yanayi generated walƙiya, wanda bi da bi ya fara da yawa gandun daji gobara. A wannan lokacin, sassa na naman gwari-siffar ash-girgije shafi rushe, kuma ya fadi baya a kan ƙasa. Wannan fallout, gauraye da magma, laka, da kuma tururi, ya aika da ƙarin pyroclastic gudana speeding saukar St. Helens 'flanks. Daga baya, slower gudana ya zo kai tsaye daga sabon arewa-facing crater da kuma glowing na pumice ash kunshi pumice da kuma zafi bombs. Wasu daga cikin wadannan gudana sun kasance located a cikin iska kamar yadda zafi tururi ko ruwa flashes, samar da ruwa mai yawa a cikin dutsen mai fitad da wuta.
Kusa da dutsen mai aman wuta