The Central and Eastern U.S. are poised for a welcome warm-up this week, offering respite from a severe Arctic cold wave that has gripped the region. After enduring record-cold high temperatures and dangerously low wind chills, particularly across the Midwest, Great Lakes, and Northeast, residents can anticipate a gradual increase in temperatures. The frostbite risk, which has been alarmingly high, is expected to diminish as the week progresses.