(Bloomberg) -- Tropical Storm Henri slammed into Rhode Island, bringing lashing rain, powerful winds and a deadly surge off the Atlantic.

The storm made landfall near Westerly, Rhode Island, at about 12:30 p.m. local time with top winds of 60 miles (95 kilometers) per hour. It drove a wall of water ashore, flooding the coast line. The region is bracing for widespread power outages as the winds toss trees into transmission lines.

Henri is the latest in a grim parade of extreme weather events worldwide as climate change takes hold. Massive wildfires have blackened huge swaths of California, Greece, Algeria and Siberia, sending smoke over the North Pole for the first time on record. July was the hottest month ever recorded on Earth.

It’s the fifth storm to hit the U.S. in 2021 and the eighth to form in the Atlantic. Henri is expected to linger across southern New England bringing as much as 6 inches (15 centimeters) of rain to a landscape that has been drenched by weeks of downpours, which could make flooding worse. It will then sweep across southern Maine and head for the Canadian Maritimes.

Flooding has already been reported across the Northeast, disrupting transportation. Amtrak canceled trains between New York and Boston. Some subway tunnels were inundated in New York City. And about 1,000 flights were canceled as of 11 a.m., mostly in Boston and Newark, New Jersey, according to Flight Aware, an airline tracking service. 

When the storm came ashore, nearly 100,000 homes and businesses were already without power in Rhode Island and Connecticut, according to Poweroutage.us, which tracks outages. 

As early as Sunday morning, Henri was still a hurricane, with top winds of 75 mph. But it lost power on its final approach. 

“It didn’t come in as ferocious as predicted,” said Jim Rouiller, lead meteorologist at the Energy Weather Group. “I was expecting a bit more out of it but it really hasn’t materialized.”

A continental storm coming across Pennsylvania seems to have sapped some of Henri’s energy and moisture, Rouiller said. It also helped slow Henri down as it crossed an area of cooler water that robbed it of its strength.

Hurricanes and tropical storms depend on warm ocean water to build power and maintain strength. The cooler water has just the opposite effect and that could mean that the feared flooding and power outage won’t be as bad.

But flooding could still be severe, and officials braced for the worst. 

New York Governor Andrew Cuomo on Saturday declared a state of emergency, and thousands of residents and holiday-makers evacuated beach communities -- or in some cases, opted to hunker down. A mandatory evacuation order was issued for some residents nearest the coast in Madison, Connecticut, across Long Island Sound. 

President Joe Biden approved emergency declarations for Rhode Island, Connecticut and New York and ordered federal assistance. He authorized the Department of Homeland Security and the Federal Emergency Management Agency to coordinate all disaster relief efforts. 

Biden held a call Saturday with governors from New York, New Jersey, Massachusetts, Connecticut and Rhode Island. 

The Coast Guard ordered ports in Southeastern New England to shut, and established a safety zone for the Port of Narragansett, Mount Hope, Buzzards Bay, and Cape Cod Bay. In New York and New Jersey, authorities will implement vessel traffic control measures and limit movement.

Henri is unlikely to produce anywhere near the $77 billion in damages that Superstorm Sandy caused in 2012, but it poses a significant threat to transportation and power networks, and is set to unleash potentially deadly storm surges.

Utilities are bracing for power outages. Eversource Energy, which serves Connecticut and Massachusetts, said it’s closely monitoring forecasts. Con Edison, which serves much of the New York City region, is “preparing for a worst-case scenario” and lining up 1,200 workers from other utilities to help restore service.    

The winds, rain and surge damage could reach at least $1 billion in losses, said Chuck Watson, a disaster modeler with Enki Research. Many of those costs will be absorbed by residents, who will make repairs themselves or because the damage won’t reach insurance deductibles. Insured losses will probably top out at $500 million, he said. 

(Adds detail beginning in the sixth paragraph.)

©2021 Bloomberg L.P.