Flash flood risk threatens Northeast July 29-Aug 1

A significant and slow-moving storm system is poised to bring widespread flash flooding and severe weather to the Northeast and parts of the East Coast through the week of July 28, 2026. The threat follows several days of severe thunderstorms across the Great Lakes and Midwest, which produced destructive winds and at least one dangerous tornado.

The primary concern is a multi-day rainfall event expected to linger over the Northeast from July 29 through August 1. The storm, unusually strong for late July, is forecast to tap into exceptionally moist air from the Atlantic and Gulf, leading to efficient, heavy rainfall rates. Meteorologists warn the system could drop a month's worth of rain in just a few days, with widespread totals of 1 to 4 inches and localized amounts exceeding 6 inches possible in areas hit by repeated downpours. The New York City metropolitan area, northern New Jersey, and western Connecticut face the highest risk of flooding rain on July 29 and into the night. The heaviest storms could produce rainfall rates of up to two inches per hour.

This flash flood threat is building on already saturated ground, increasing the potential for significant impacts. A preview...