The Northeast is set to experience another round of significant rainfall over the weekend, with isolated flash flooding a concern due to already saturated soils. The downpours are anticipated to begin Friday afternoon and continue through Saturday.
A system moving east from the Plains will enter the Great Lakes region by Thursday evening before tracking across the Northeast with a trailing cold front. This front is expected to trigger showers and heavy downpours across the region, particularly from New York through the Ohio Valley and Midwest.
A Level 2 of 4 flash flood risk has been issued for parts of the Ohio Valley for Friday and Saturday, affecting major cities such as St. Louis, Indianapolis, Cincinnati, and Louisville. Meteorologists are forecasting heavy rainfall rates that could exacerbate flooding conditions.
By Saturday, the low-pressure system is projected to be near far eastern Maine. As the cold front slows, increased instability and moisture surging northward from the Gulf and Atlantic are expected to fuel showers and thunderstorms across the Mid-Atlantic and Northeast. Areas from Cincinnati to Washington, D.C., and New York City could see significant precipitation in the afternoon.
From early Sunday, widespread rainfall totals of 1 to 2 inches are possible across southern Indiana, West Virginia, Pennsylvania, and New Jersey. Where thunderstorms train or move slowly, localized amounts could exceed 2 to 3 inches. Lingering showers may persist into Sunday across parts of the Northeast before drier and more seasonable weather is expected to return by Monday.