The Nation’s Weather

…Heavy lake-effect snow downwind from the Great Lakes through Sunday…

…Light snow over parts of the Central Appalachians on Friday and light
to moderate snow from the Middle Mississippi Valley to the Central
Appalachians on Saturday…

…Temperatures will be 15 to 25 degrees below average over parts of the
Northern Plains…

A slow-moving front across Florida will aid in creating showers and
thunderstorms over parts of the Central Gulf Coast to Florida on Friday.
After the boundary moves south of Florida, scattered light rain will
develop along the east coast of the Florida peninsula on Saturday. An area
of high pressure over Central Canada will usher cold air over parts of the
Northern Plains, bringing temperatures of 10 to 25 degrees below average.
The cold air has prompted Cold Weather Advisories over parts of North
Dakota on Friday morning.

In addition, upper-level troughing over the Great Lakes into the Northeast
and cold air streaming over the Great Lakes will produce heavy lake-effect
snow over the Upper Peninsula of Michigan through Sunday. Lighter snowfall
will develop over most of the west coast of the Lower Peninsula of
Michigan during the time period. However, heavy lake-effect snow will
develop over the parts of the northern Lower Peninsula of Michigan.
Moreover, heavy lake-effect snow will develop downwind of Lakes Erie and
Ontario through Sunday.

A quasi-stationary front extending from the Middle Mississippi Valley to
the Northern Rockies/Northern High Plains will be the focus for light snow
over parts of the Northern High Plains on Friday and over parts of the
Northern Plains on Saturday.

Furthermore, a wave of low pressure will develop on the boundary over
parts of the Central Plains and move eastward to the Central Appalachians
by Sunday. The system will produce light to moderate snow over parts of
the Middle Mississippi Valley eastward to the Central Appalachians on
Saturday into Sunday morning.

Meanwhile, weak return flow off the Gulf of Mexico will create light rain
over parts of the Western Gulf Coast on Saturday.

Ziegenfelder

Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php