Wintry conditions sweep across the U.S., producing below-average temperatures, winter weather watches and flood watches.

Winter storm warnings and advisories have been issued across nine states in the U.S. Stay with Newsweek for the latest updates.

Extremely low temperatures and multiple rounds of snowfall await Michigan residents this week, according to winter weather forecasts. When and where to expect snowfall is one of five “must-read” stories from MLive to get your morning started on Monday, Dec. 9.

A winter storm will deliver a punch of snow to millions in the Northeast after it dumps more white stuff on the snowy Midwest.

After a weekend of snow in the Midwest, the winter weather is focused farther south on Monday, with snow hitting Virginia, West Virginia and North Carolina.

On Tuesday at 2:47 a.m. EST the National Weather Service issued an updated winter weather advisory in effect until 10 a.m. EST for Mackinac County.

On Tuesday at 1:28 a.m. the National Weather Service released a winter weather advisory valid for Wednesday between 3 a.m. and 10 p.m. for Northern Lycoming as well as Tioga and Sullivan counties.

Some snow will fall Tuesday morning ahead of a stronger overnight system that could drop several inches, but is highly dependent on temperatures.

Some Minnesota drivers are facing slick roads Tuesday morning after light snow created challenging conditions ahead of an incoming winter storm.

Snowfall for the last five winter seasons is more than 80 inches below normal in Philly. The region can expect its coldest morning since at least Feb. 20 with temperatures in the teens around daybreak Tuesday, even at Philadelphia International Airport, as for the second straight year December is off to quite a chilly start.