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.
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A storm will continue to unleash heavy rain, gusty winds and mountain snow across Northern California into Tuesday.
The risk for severe thunderstorms will ramp up across the Ohio Valley states and lower Great Lakes region to end the week.
Several storm systems will bring rounds of gusty winds and rain to Germany this week.
Blustery showers and strong wind gusts will lead to difficult travel at times this week.
Heavy snow and gusty winds may unfold as a strong storm system sweeps colder air across the central United States late this week.
Tropical Cyclone Alfred will threaten coastal communities around the Gulf of Carpentaria with flooding downpours through early this week.
A stormy weather pattern unfolding across Europe this week will lead to showers and gusty winds sweeping into Germany on a daily basis.
Heavy rain, mountain snow and gusty winds will pound the northwestern United States early this week, with the most significant impacts targeting Northern California.