From Chelan County Emergency Management:
Fire season is upon us so time to brush up on our evacuation levels!  If you’re not signed up already for emergency alerts to come to you via phone go to Public – Chelan County, WA – Sign In (everbridge.net)
Level 1:
Means be ready. Be alert because there is a threat in your area. Tell your neighbors about the threat so they know. Start thinking about if you need to assist a neighbor if you must immediately leave. Monitor this page, our website, the Chelan County Emergency Incidents Map and local news. (links below)
Level 2
Means get set to leave at a moment’s notice. Prepare your emergency kit, or put yours in your vehicle now. Pack your vehicle. Know your evacuation route and meeting place. If you have mobility or medical issues, consider leaving under a Level 2. If you have livestock or large animals, move them now.
Level 3:
Means go now! . Leave now. You are in immediate danger. Even if you don’t see the danger, follow your evacuation plans and leave. Delay could cost lives. If you stay, emergency responders may not be able to reach you.
Chelan County Emergency Incidents Map: