Arctic air is on the move and will chill the central and eastern United States early this week.
The northern Plains and the Upper Midwest will be first to feel the icy air through Monday.
The cold blast will then progressively head to the south and east Tuesday through Wednesday.
The arrival of the arctic air will be accompanied by a period of snow across the Midwest, Northeast and along the spine of the Appalachians. The snow could even make an appearance in Charlotte and Atlanta Tuesday night.
The stiff winds ushering in the cold wave will lead to RealFeel® temperatures being significantly lower than the actual temperature.
The weather pattern this week will deliver the lowest temperatures of the season so far and is likely to bring the first frost or freeze of the season to some places in Texas, the southern Plains and South.
Actual temperatures may fail to reach the freezing mark for a couple of days around Minneapolis. Highs may be held in the 30s around Chicago. Dallas could have its first freeze of the season.
New York City, Philadelphia and Washington, D.C., are also expected to have their first freezing temperatures of the fall.
As the arctic air passes over the warm waters of the Great Lakes, it will be modified somewhat but will also produce bands of lake-effect snow.
Farther to the south, freezing drizzle will develop Tuesday morning from the western panhandle of Texas to southeastern Colorado.
A storm along the leading edge of the arctic air could still strengthen across the western waters of the Atlantic, but should do so far enough offshore to prevent a snowstorm from unfolding along the East Coast.
As fast as the arctic air invades the United States, temperatures will quickly rebound later in the week.
A spike in severe thunderstorms, capable of producing tornadoes, will follow a slow start to severe weather season in 2014.
Another storm in a seemingly endless parade threatens to bring severe weather, snow and flooding from Texas to Maine.
The luck of the Irish is needed for performers on Saint Patrick's Day, in order to combat the effects of possible wintry weather.
An ongoing severe drought has led to unhealthy air quality in Malaysia, but some rainfall is in the forecast.
Snow and wind causing dangerous travel and power outages has put some cities into the record books this winter.
The temperature roller-coaster ride will continue into the new week for the Washington, D.C., area.
Traditional date for Turkey Buzzards to return to Hinckley.
Astoria, OR (1988)
Record-tying low of 28 degrees in the morning followed by a record high of 61 degrees in the afternoon (records only go back to 1953).
Upper Midwest (1941)
Severe modern blizzard in North Dakota: 39 dead in ND; 32 dead in MN; 85 mph wind gust in Grand Forks; 75 mph wind gust in Duluth. The coldest front crossed Minnesota in 7 hours, at 30 mph.