Broad Arctic Surge Impacts Midwest and Eastern U.S. Forecasters expect a powerful Arctic air mass to spill southward over the next ten days, affecting the Plains, Great Lakes, Ohio Valley, Appalachians, and the East Coast [1][2]. The first front moves through the Great Lakes on Tuesday night, driving overnight lows into the teens and single digits across the Midwest and interior Northeast [1][2]. Rural and northern locations may see even colder readings, with inland areas feeling the full force of the cold without coastal moderation [2].

Second Arctic Wave Intensifies Weekend Conditions second surge arrives early this weekend, delivering wind chills below zero in many Midwestern spots [1][2]. Gusts approaching 40 mph are forecast, amplifying wind‑chill values and raising frostbite risk for anyone exposed for extended periods [1][2]. The combination of subzero feels‑like temperatures and strong winds creates hazardous outdoor conditions that persist into the weekend [2].

Northeast Braces for Heavy Snowfall As the frigid air meets moisture moving through the Northeast, forecasters predict snow totals that could exceed a foot, especially at higher elevations, the northern Great Lakes, and parts of New England [1][2]. Blowing and drifting snow, coupled with strong winds, may reduce visibility and create dangerous travel situations [1][2]. These winter weather impacts are expected to be most severe where the cold air and moisture intersect, producing foot‑plus snow accumulations [2].

Southern Reach Extends Into Tennessee River Valley Pockets of heavy snowfall may push southward into the Tennessee River Valley, expanding the storm’s impact beyond the core cold‑air corridor [1][2]. This southern extension could disrupt travel in several states as the cold air continues to move southward [1]. Residents across the affected regions are urged to secure loose outdoor items, monitor local forecasts, and prepare for prolonged winter conditions [1][2].