As of Wednesday, USA Today reports that the storm "set an unofficial record for lowest pressure ever measured in Pueblo, Colorado, at 975 millibars," and some areas could see gusts up to 110mph.
Currently, blizzard and winter storm warnings are active in Wyoming, Nebraska, and South Dakota. According to CNN, all the watches, warnings, and advisories stretch over 1.5 million square miles, aka around half of the continental United States, from Mexico to Canada, and more than 55 million people are under a high wind threat. Wind, hail, and even tornadoes are being forecasted in the southern Plains and Mississippi River Valley.
So if you're in those areas, make like Denver and cancel your plans.
h/t CNN, USA Today