The United States is facing three simultaneous weather emergencies, with wildfire smoke blanketing parts of the East, catastrophic flooding continuing in Texas and dozens of large wildfires burning across the West. The hazardous conditions now stretch from the Great Lakes to the East Coast, as authorities respond to multiple climate-driven crises at once.

Millions of Americans face air quality alerts from Minnesota to New York as authorities urge people to stay indoors

Hundreds of fires are burning out of control, and several factors could help bring more smoke to the U.S. for days or even weeks to come.