A fast-moving storm raced across the Upper Midwest and Northeast Thursday into Friday, Jan. 20-21, leaving up to 8 inches of snow in its wake, and drawing bitter cold air in behind.

Snow continues to fall this morning, Friday, and is expected to last until mid-day in Southern and Central New England.

The National Weather Service has issued a warning for the Upper Midwest that temperatures are dangerously cold.

"Bitterly cold arctic air poured into the area Thursday (Jan. 20) leading to low temperatures this morning (Jan. 21) from -15 to -25 degrees. Although winds have become light, generally 5 mph or less, the combination of any wind and the cold temperatures will result in dangerous wind chills in the 20 to 30 below zero range.  Look for wind chill values to improve late this morning with sunshine and winds turning to the south," the National Weather Service reported.

"Wind chill advisorires are in effect across the Upper Mississippi River Valley through 10 a.m. this morning (Jan. 21).  If you must be outdoors be sure to take extra precautions such as wearing extra layers of clothing and be sure to keep exposed skin covered.  Wind chills this cold can cause exposed skin to freeze in less than an hour," NWS reported.

Temperatures across the Northeast also are forecast to drop well below zero the next few nights, and climb only into the mid-teens during the days.

The storm is the latest in a series that have hit the region this winter, disrupting travel, making morning commutes a misery, and freshening an already ample snowpack at ski resorts.

Up to 6 inches of snow fell on Tuesday Jan. 18, in another storm that moved swiftly from the Midwest to the Northeast, and that ended in freezing rain.

The week before, the entire East Coast was hammered by a huge storm that brought freezing rain and heavy snow to the South, and up to 2 feet of snow across parts of New England.

In each case the storms have hit mid-week, and while this meant tough sledding for people heading to work, it also meant good skiing and riding for people heading to the slopes on weekends.