According to Meteorologist Shiri Spear’s latest weather blog post, the storm looks like it will move in between about 8 p.m. and 11 p.m. on Saturday night, with the heaviest snow falling from midnight through 7 a.m. on Sunday.

Every state but Hawaii, California and Florida is likely to get a taste of wind chills of 20 degrees or colder.

On the heels of successive winter storms that brought heavy snow and ice to a wide swath of the United States, another arctic blast tied to the polar vortex will send temperatures plummeting across the country early next week,

A weeklong, polar vortex-related Arctic outbreak rivaling any seen so far this winter is slated to bring frigid conditions to much of the U.S. east of the Rockies next week. Threat level: The Arctic air is likely to send temperatures plunging to at least 30 degrees below average for mid-February across the Midwest and Plains states,