A surface low will track from the lower Mississippi Rver Valley to northern Georgia overnight, with precipitation overspreading central Kentucky and southern Indiana by mid to late afternoon. Precipitation is expected to briefly begin as all rain through the afternoon and early evening hours, before a rain and snow mix changes over to mostly snow between 8 PM and 11 PM EDT across southern Indiana and northern Kentucky. The rain and snow line will gradually slide south through the overnight, making it as far south as the Cumberland Parkway by sunrise. Precipitation is expected to end from west to east from sunrise to late morning, with a brief chance at some freezing drizzle around dawn. A very thin glaze of ice will only be possible on elevated surfaces.
Overall 1 to 2 inches of snow could fall on grassy and elevated surfaces across southern Indiana and north central Kentucky through the overnight. Roadways are not expected to accumulate snows very well due to their temperatures being well above freezing. However, the potential for heavier bands of snow does exist and heavier snowfall rates are a possibility. Should areas of more intense snowfall set up overnight, impacts to roadways will likely occur. At this time, the best potential for the heaviest snow looks to be just south of the Ohio River into the Bluegrass. Stay tuned to the latest forecast updates as upgrades or changes to the winter weather threat are possible if the track of the storm changes. Below is a map of where snowfall accumulations are expected to occur.