"More than 140 million Americans in 26 states were under some sort of winter advisory heading into Monday, with dangerous ice and snow storms expected to cause dangerous conditions and travel disruptions.

By midmorning, 3,000 flights had been canceled across the country, about 1,600 of them at Dallas/Fort Worth International and Bush Intercontinental airports in Texas."

https://www.nbcnewyork.com/news/national-international/storms-blanket-much-of-us-with-dangerous-conditions-power-outages/2889270/?amp