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Saturday, August 21, 2021

What to expect from Henri in New England


Maps: What to expect from Henri in New England

By Maria Elena Little Endara and Brittany Bowker Globe Correspondent and Globe Staff,Updated August 21, 2021, 10:53 a.m.


Parts of Massachusetts could see heavy rain leading to flash flooding.CRAIG F. WALKER/GLOBE STAFF


Forecasters are keeping an eye on Henri’s path as it approaches New England

A hurricane warning went into effect Saturday for the Rhode Island and Connecticut coasts, and areas inland. A tropical storm warning was issued for the Cape and Islands, and for locations in south-central Massachusetts.


Hurricane and tropical storm warnings were issued for Southern New England.NWS


Storm surge warning in effect throughout the region.NWS


The latest National Hurricane Center models show a westward shift for the storm, and Henri is expected to make landfall near eastern Long Island Sunday afternoon. Then it should weaken rapidly as it heads into Connecticut on Sunday evening before slowly exiting the region Monday. The main hazards include damaging winds, flooding rain, and storm surge flooding.



The cone contains the probable path of the storm center.NWS

Heavy rainfall may lead to flash flooding, damaging winds, and storm surge, although the arrival of the storm near lower tide may help mitigate impact, the weather service said. Flood watches were issued for central parts of the state, and in all of Western Massachusetts. Excessive runoff from heavy rainfall may cause flash flooding in areas with small creeks ad streams, urban areas, and low lying spots. Forecasters predict between 3 to 6 inches of rain in these areas, with high amounts possible.


Expected rain from Henri.NWS


Flooding is possible Sunday and Sunday night in Connecticut, Rhode Island, and Western and Central Massachusetts.NWS

Most of Massachusetts is under “slight” or “marginal” risk for flash flooding, and areas in western Massachusetts have the greatest potential for flash flooding Sunday and Sunday night, forecasters said.


Risk of flash flooding throughout the region.NWS

The most likely arrival time of tropical storm-force winds is Sunday around 8 a.m., and as early as Saturday evening in parts of southern New England.


Most likely arrival time of tropical storm-force winds.NWS

The storm should clear out of the area by sometime late Monday night, forecasters said.

The National Weather Service encourages people to start preparing for a possible hurricane by having extra cash on hand, filling up vehicles with gas, and buying non-perishable food in case power is lost.

Lauren Booker of Globe staff contributed to this report.



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