The National Weather Service issues a variety of weather warnings and advisories. Here's what they mean in Michigan.

An updated winter weather advisory was issued by the National Weather Service on Tuesday at 10 p.m. EST in effect until Wednesday at 7 a.m. EST for Leelanau, Benzie and Grand Traverse counties.

On Feb. 9, 1934, Vanderbilt, in Otsego County, recorded the all-time coldest temperature in Michigan — minus 51 degrees Fahrenheit, according to the NOAA's National Centers for Environmental Information.

Michigan schools typically close when wind chills reach 20 degrees below zero. Next week's weather is expected to approach that threshold.

Temperatures in central Michigan are expected to dip into the single digits for the next several days, and state police are urging residents to prepare early for the extreme cold weather.

What is a Siberian Express? The phrase is an informal term for a surge of extremely cold air from the Siberian anticyclone that may occur in winter, after the surface of the Arcti

EST an updated winter weather advisory was issued by the National Weather Service in effect until 7 p.m. EST for Marquette, Alger, Iron, Dickinson, Menominee, Delta and Schoolcraft counties.

Lake effect snow is expected to fall across much of Michigan this week as high winds sweep across Lake Superior, Lake Michigan.

Throughout the region, snowfall totals have landed around 2-6 inches, with some areas of Petoskey and Harbor Springs reporting upwards of a foot of snow, said Matt Gillen, meteorologist with the National Weather Service office in Gaylord.

Northern Michigan is expected to see snow Friday night into Saturday, but the UP will likely not get snowfall until Sunday.

Winter weather advisories or winter storm warnings are in place for nine states across the U.S. as of early Tuesday morning, and up to nine inches of snow is forecast by the National Weather Service (NWS) in some parts of the country.