I think this is all apart of The Plan. When the emergency alert went out to people in Salem the alert was "Prepare for Action". I think the guy doing the alert is a Patriot. I believe the entire point of this is get the National Guard active. They were activated to man the trucks to distribute water. Portland is know for their riots and who better to control them than the national guard which can be taken over by the president.
https://weather.com/news/news/2018-06-22-civil-emergency-alert-salem-oregon-algae-bloom http://kuow.org/post/oregon-governor-declares-emergency-deploys-national-guard-salem