A 1,000-mile severe weather threat currently affecting the Heartland is forecasted to move towards the Eastern Seaboard from Wednesday to Thursday.
The cold front causing the storms on Tuesday is projected to advance through the Mississippi Valley into the Ohio and Tennessee valleys, leading to the formation of thunderstorms.
There is some uncertainty about the storm’s impact as ongoing storms from Tuesday night and early Wednesday could influence the atmosphere's stability later in the day.
Conditions in the Ohio Valley are favorable for strong storm development due to increased ground moisture and high-level winds. This setup could organize a storm system.
There may be isolated storms in the Deep South, Southwest, and Lower Mississippi Valley. If these regions remain calm, the atmosphere could become more unstable ahead of an approaching cold front.
Potential storm development could occur in various ways, with storms forming both ahead of and along the front line.
Nashville, Tennessee, Charleston, South Carolina, and Pittsburgh are under a Level 2 out of 5 severe storm threat.
Nashville is expected to receive moderate rainfall of 1 to 2 inches by Thursday. Despite recent dry conditions, the region can benefit from the precipitation.
The severity of Thursday's severe weather risk will be influenced by the evolution of storms on Wednesday. If widespread storms develop early and move ahead of the front, they may lessen the threat of stronger storms later.
By Thursday, the severe weather risk will extend across the Mid-Atlantic and Southeast as a cold front traverses the eastern U.S.
Regardless of storm severity, most states east of the Mississippi River are forecasted to receive 1 to 2 inches of rain, offering relief amid drought conditions.
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