The heat dome that descended upon the Pacific Northwest in late June 2021 met a population radically unprepared for it. Dr. Jason Vogel, Climate Impacts Group, and Dr. Brian Henning, Gonzaga University, co-authored this article for the Conversation. The Climate Impacts Group’s latest report on extreme heat in Washington State is referenced. This story was also run in the Lake County News, Kiowa County Press, Times Union, Fast Company, the Everett Daily Herald and the Daily News.