FAA runs cameras at airports and every airport has at least one. All cameras east and west of the Rockies have been taken down.
*you can see Canada and Alaska camera systems are still up and how many there should be.
https://weathercams.faa.gov/map/-169.78493,8.52369,-2.52907,65.26922
This planefag has a video they just put up about it: https://www.youtube.com/watch?v=f3rGUQ5_kAU&t=192s [Embed]