The remnants of Hurricane Ida are expected to bring heavy rain to parts of the mid-Atlantic and southern New England on Wednesday and Thursday, with life-threatening flooding possible in many of those areas, meteorologists said.
The Central Atlantic and New England region should expect three to 20 inches of rain from Ida on Wednesday and through Thursday, the National Weather Service said. The storm hit Louisiana on Sunday as a Category 4 hurricane, but has since been downgraded to a tropical depression, according to the National Hurricane Center.
The governors of Virginia and West Virginia declared a state of emergency on Tuesday prior to the system’s arrival.
Widespread river flooding could occur in southern Pennsylvania and New Jersey, particularly in the Monongahela, Potomac, Susquehanna, Delaware and lower Hudson River basins, forecasters said.
The last storm to hit the northeast was Henri, which hit land on August 22nd in southwest Rhode Island as a tropical storm, sending lashing rain streaks across large parts of New England, cutting out electricity and forced evacuations in most of Rhode Island’s coastal areas in Connecticut, dozens of motorists stranded in New Jersey, breaking rainfall records in New York City.
At its peak, Henri left more than 140,000 households from New Jersey to Maine without power and cars stalled on flooded streets in New York City.
Meteorologists warned Tuesday that similar amounts of rain could hit the region as the tropical moisture associated with Ida intersects with strong bands of wind across the upper levels of the atmosphere in the northeast, resulting in heavy rains.
Flash flood monitoring is in place for all of Connecticut, Massachusetts and Rhode Island from Wednesday evening through Thursday. Thursday morning shuttles could be affected by drainage floods in much of New England and the Central Atlantic, particularly in metropolitan areas, meteorologists said.
In New York City and the surrounding areas, where flash flood monitoring is also in effect from Wednesday afternoon through Thursday afternoon, the remains of Ida will bring a period of heavy rain and potential flash floods, the weather service said.
“Ida will basically be leaving New England by Thursday night,” said Dan Thompson, a meteorologist with the National Weather Service. “But it will rain heavily before it goes.”