I have a permit for Sunday, Sept 19 and am wondering what the opinion is on what becomes a no-go for the hike in terms of air quality. My thought is that if AirNow.gov is showing red (Unhealthy) along the route that its time to plan for next year. I worry about air quality conditions changing during the course of the 16 hour hike (how long it took me my first summit in 2019). Just interested in your thoughts. I saw Doug Sr. said it was rough at the portal on Wednesday I think.