The FAA has been forced to delay flights at several airports in the northeast due to low visibility according to a recent FAA tweet.

According to CNN, “Millions across the US and Canada remain at risk of inhaling potentially harmful air as wildfire smoke originating from Canada shrouds major US cities”.

The US air quality is still alarmingly high, ranging from moderate to hazardous according to the U.S. Air Quality Index.

At the local level, flights arriving and departing from Atlanta’s Hartsfield Jackson Airport . On Thursday are experiencing delays.