Millions of residents along the I-95 corridor are facing an increased risk of flash flooding and high winds as a significant storm system moves across the Eastern Seaboard from Tuesday through Wednesday.
The system, which is developing a more southerly trajectory, is expected to bring heavy rainfall rates, with some areas potentially seeing more than an inch or two per hour. A Level 2 out of 4 flash flood threat has been issued for parts of the Lower Hudson Valley, New York City, and areas as far south as Philadelphia. Storms in these regions could repeatedly impact the same areas, leading to rapid flooding conditions, particularly during the Tuesday evening commute.
Forecasters anticipate a secondary area of low pressure may form off the coast near Long Island or just inland, potentially enhancing rainfall rates and triggering strong winds. Coastal flooding could affect areas from Long Island to Down East Maine. This secondary low is expected to move north into New England by Wednesday, shifting the Level 2 flash flood risk to areas including Hartford, Boston, Concord, and Maine.
Combined rainfall totals for Tuesday and Wednesday could exceed 3 to 5 inches in areas like New York, Scranton, and Syracuse.
While the system's impacts may be comparable to a Nor'easter, with heavy rain and extended duration, the winds are generally expected to be from the south. This is contrary to the typical wind direction of a Nor'easter. Gusts could reach 40 to 50 mph in some locations as the secondary low develops.
The FOX Forecast Center is monitoring the evolution of the secondary low, as its development could influence the exact placement and severity of the flood threat. Residents in the affected regions are advised to stay informed about weather updates and prepare for potential disruptions.