Tammy Beauvais got more than she bargained for after a freak storm hit the powwow she was attending. Her powwow days are winding down, she said. (Courtesy Tammy Beauvais) [apss_share] Lachlan Madill The Eastern Door If you’ve been to a powwow, chances are you’ve seen clothing designer Tammy Beauvais’s display tent. For the past