A large Arctic air mass moving from Canada across the United States would cause a “significant coast-to-coast winter storm,” the National Weather Service (NWS) said on February 22.Satellite imagery posted by NOAA Satellites on Wednesday shows the “major winter storm moving over the US”The NWS issued blizzard, ice storm and winter storm warnings from “the Rockies to the Great Lakes.” Credit: NOAA Satellites via Storyful