Colorado's first big winter storm of the season is in full swing this Wednesday morning, delivering the heaviest snowfall just in time for the commute and causing slow, slick travel along the I-25 corridor and the foothills.

A stronger, slower moving winter storm will bring more significant travel impacts to Southern Colorado on Wednesday.

Heavy snow, ice, and blustery conditions are likely to affect travel, especially during busy periods such as commutes.

Winter storm warnings are in effect across the US as millions brace for over a foot of snow. Colorado reportedly faces the greatest risk, with up to 17 inches expected. Travel may become hazardous due to heavy snow,

A mid-week winter storm will bring several inches of snow to I-25 and travel headaches. Here is a look at storm updates and closures.

Most of the metro area is expected to see 2 to 5 inches, but totals climb sharply into the foothills — with parts of Jefferson County already near 8 inches. Farther north, cities like Fort Collins outpaced forecasted expectations, already receiving between 4 to 6 inches of snow.

Winter weather kicked off early in 2025, with snowstorms over Thanksgiving and early December. The Old Farmer's Almanac has the skinny on the rest of the month. There are early signs that the northeastern United States may be in for several waves of below-average low temperatures this December.

After the most significant winter storm of the season for the Denver metro area on Wednesday, temperatures early on Thursday will continue to plummet in the city and throughout Colorado. Single digits and teens are expected along the Front Range and Eastern Plains, with single digits and a few below-zero readings in the high country.