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Isaias is 'racing' up the East Coast, threatening tornadoes, storm surges, and perilous flooding
(CNN)Tropical Storm Isaias is charging up the East Coast, causing rapid flooding, water rescues and the threat of New York's strongest winds since Superstorm Sandy in 2012.
At least one person was killed by the storm in North Carolina, Gov. Roy Cooper told ABC's "Good Morning America" Tuesday morning.
Now the storm is headed to major cities in the Northeast, knocking out power as the country simultaneously grapples with coronavirus.
Isaias made landfall as a Category 1 hurricane late Monday night near Ocean Isle Beach, North Carolina, the National Hurricane Center said.
By Tuesday morning, it was downgraded to a tropical storm, with maximum sustained winds of 70 mph.
More than 30 million people are now under tornado watches, CNN meteorologist Brandon Miller said.
A tornado watch is in effect until noon for Delaware, eastern Maryland and coastal Virginia, which has already had multiple tornadoes reported this morning.
Another tornado watch has been issued for several major Northeastern cities, including New York City and Philadelphia, until 4 p.m. Tuesday. The watch also includes parts of southern Connecticut and New Jersey.
What makes Isaias particularly dangerous is how fast it's traveling. As of 8 a.m. ET, the storm was "racing north at 33 mph," CNN meteorlogist Chad Myers said.
That rapid speed means Isaias won't weaken very much as it barrels up the East Coast. It also means tornadoes can drop with little or no warning. "If you get a (tornado) warning on your phone, make sure you pay attention to it," Myers said. "You might not have 20 minutes with storms like this."
What to expect, and when
Some East Coast cities will get deluged from both the sky and the sea, with torrential rainfall and storm surges.
Virginia Beach, Virginia, will keep getting hammered until 11 a.m. It's expected to get drenched by a storm surge of about 2 to 4 feet, in addition to rainfall between 2 to 3 inches, Miller said.
Washington, DC, will face the brunt of the storm until 1 p.m. About 4 to 6 inches of rain are expected.
Philadelphia will get hit between 11 a.m. and 4 p.m, with expected wind gusts of up to 65 mph and about 3 to 5 inches of rain.
New York City will endure its toughest conditions between 1 p.m. and 7 p.m. A storm surge of 1 to 3 feet is expected, in addition to 2 to 3 inches of rain and wind gusts of up to 70 mph.
Boston will get hit between 8 p.m. and 11 p.m., with wind gusts of up to 50 mph and less than an inch of rain expected.
'Life-threatening' floods are likely
"Isaias poses a significant risk of life-threatening flash and urban flooding from heavy rainfall for areas along and just west of the I-95 corridor through tonight, from northern Virginia into upstate New York," the National Hurricane Center tweeted.
And tropical storm conditions will last throughout Tuesday and into the overnight hours.
In addition to torrential rain, major storm surges and the threat of tornadoes, "this is going to be a power problem," CNN meteorologist Chad Myers said.
By mid-Tuesday morning, Isaias had knocked out power to more than 500,000 electricity customers, Myers said. Each customer can represent a household or business, meaning the actual number of people without electricity is much higher.
Flooding, fires and collapsed houses
Mardela Springs, Maryland, was pummeled by Isaias.
Brunswick County, North Carolina, reported numerous calls for water rescues, structural fires, structural collapses and people trapped in flooding houses," Oak Island Water Rescue said on Facebook.
Howling wind and water washing across in "one to two foot swells" closed a bridge Monday night in Sunset Beach, North Carolina, the Sunset Beach Police said on Facebook. Streets in Holden Beach became rivers as water quickly rose, Jessi Viox told CNN.
"Getting ready for Round 2," Viox said. "The eye has moved around us, and now here comes the back end."
Before Isaias even made landfall, the top of the Apache Pier Pavilion was seen lifting off in the wind.
And multiple structures in Ocean Isle Beach caught fire, according to the Horry County Fire Rescue in South Carolina.
The system could bring the strongest winds to New York City since Superstorm Sandy almost eight years ago, said Ross Dickman, the meteorologist-in-charge at the National Weather Service office in New York.
"The wind and flooding impacts from Isaias will be similar to what the city has seen from some of the strongest coastal storms," such as nor'easters, he said.
"But we haven't seen one this strong in many years."
New York City installed temporary barriers to prevent flooding in Lower Manhattan.
New York City workers erect flood barriers to protect against an expected storm surge.
And in Maryland, Gov. Larry Hogan suspended Covid-19 testing operations at community-based sites for Tuesday.
Thousands of evacuations
The North Carolina Department of Transportation (NDOT) evacuated more than 3,000 people off Ocracoke Island on Monday, CNN affiliate WAVY-TV reported.
"The most important thing is to get out of harm's way if you are told to evacuate," Gov. Cooper said. "Try to have a plan to stay with friends or family outside the danger zone."
Some North Carolinians rushed to stock up on supplies, unsure how long it will take to recover from the storm.
"You never know," Eli Thompson of Avon told WAVY-TV. "We've been hit with worse surprises, so there really is no amount of over-preparations that you can do."
CNN's Joe Sutton contributed to this report.
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