An arctic air mass will channel temperatures 20-30 degrees below already historically cold January averages. The South braced for a rare winter storm.

The coldest weather of the winter is here and won’t relent until late this week. Highs may not escape the 20s until Friday; on Wednesday, they may not surpass the teens. While it’s cold, it’s dry. Significant snow is not in the forecast this week. By the weekend, temperatures will start to moderate some.