On the southern edge of the arctic surface high and north of a frontal boundary stretched from the Southern Plains into the Southeast, freezing rain is forecast to develop. Significant ice accumulation could start developing in the Southern Plains and Mid-Mississippi Valley tonight and quickly spread east-northeast to the Ohio and Tennessee Valleys on Wednesday. The areas with the best chance to receive 0.25" or more of ice extends from the Ozarks to the I-64 corridor in eastern Kentucky. Ice accumulation exceeding 0.50" is possible in some locations. This amount of ice will lead to hazardous travel conditions, power outages, and scattered tree damage. Slightly to the north, areas of light snow will be found across the Ohio Valley and Mid-Atlantic throughout Wednesday and Thursday. Through Thursday evening, the current forecast shows the highest snow totals of 6+" across the Central Appalachians. Meanwhile farther south along the aforementioned front, widespread rain showers and thunderstorms are expected across the southeastern U.S., which could lead to an inch or two of rain through Friday, as well as some flooding issues for the Southern Appalachians in particular.