I would not go there in August to escape smoke. It's going to be a mess up there for a long time. They evacuated Pearrygin State Park. Pateros had a lot of buildings burned up yesterday and it is not over. Winthrop and Twisp are not where you want to be right now or in August. JMHO.
Clickyhttp://www.parks.wa.gov/563/Pearrygin-Lake
Kathy