A new storm originating from the Northwest will move toward the Southern Plains and eventually through the Southeast this weekend, bringing rain and thunderstorms all the way to the East Coast while snow falls across the interior Northeast.
This Saturday, showers and thunderstorms are expected near the Gulf Coast, including in eastern Texas, portions of Louisiana, Arkansas, and southern Mississippi and Alabama. Also across the Northern Tier where temperatures are above freezing due to a warm, southerly flow, a few showers are possible from southern Michigan and Wisconsin through the Mid-Mississippi Valley. Colder air will invade, however, in the Great Lakes region and Ohio Valley during the overnight hours.
Speaking of the overnight hours, the showers will become more organized and will consolidate into a widespread rain in the Tennessee Valley while scattered showers and thunderstorms sweep through much of the Southeast. Showers will also creep into much of the Mid-Atlantic.
Then on Sunday, while our snowstorm organizes across the interior Northeast and northern New England, rain will fall from coastal Maine through southern New England, and the Mid-Atlantic. Most of this rain will be light, but it will sure make for an ugly, gloomy day. In the Southeast, a line of heavy rain and thunderstorms will likely move eastward through Alabama, Georgia, the Florida Panhandle, and the Carolinas as the day progresses.
Sunday night, the cold front will clear through the Southeast and Mid-Atlantic, therefore ending the rain in these regions. The rain will stick around through New England, clearing from west to east throughout the night. Down-east Maine may still begin the day Monday with a lingering light rain.