The grip of Arctic cold on the Eastern United States is gradually loosening, with temperatures expected to moderate starting Wednesday. An upper-level ridge is forming, which will allow daytime high temperatures to recover closer to the seasonal norms for this time of year. While the overall conditions are improving, the risk of refreezing at night remains, potentially creating slick road conditions. Drivers and pedestrians should exercise caution, especially during early mornings and late evenings, as black ice may be present.