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Tropical Storm Isaias will make landfall as a hurricane; Grand Strand area under warning - Charleston Post Courier

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Isaias continued its crawl up the coast from Florida as a tropical storm on Monday morning, staying relatively weak even as meteorologists predicted it would make landfall in the Carolinas as a Category 1 hurricane.

As of 2 p.m., the storm was headed north off the coast of Georgia at 13 mph, with sustained winds at 70 mph. It was 115 miles south of Charleston and 180 miles southwest of Myrtle Beach.

The National Hurricane Center predicted Isaias would make landfall as a hurricane Monday night. South Santee River up to Surf City in North Carolina is under a hurricane warning, and hurricane conditions are expected in coastal Horry County by this evening. The situation is favorable for tornadoes, the National Weather Service said.

Horry County officials say Isaias to cause beach erosion, significant storm surge

The storm is forecast to strengthen in the afternoon or early evening before it reaches the coast of northeastern South Carolina and southern North Carolina, after which it will slowly weaken.

"It's going to be a teetering thing ... a strong storm or really weak hurricane," National Weather Service Charleston meteorologist Rebecca Davidson said. "It's been an interesting storm, that's for sure."

Winds from the system began pummeling the Lowcountry about noon on Monday. 

A band of heavy rain was forecast to move onshore shortly before 3 p.m. between Folly Beach and McClellanville, bringing gusts of 50 to 55 miles per hour.

Tropical storm amid COVID-19 pandemic creates new safety challenges for Myrtle Beach area

Authorities issued a tropical storm warning for coastal portions of the Lowcountry, which weren't expected to suffer a direct hit. 

In Charleston, city officials gave Mayor John Tecklenburg authorization to impose a curfew, but he instead urged residents to stay off the road and at home after 6 p.m. Charleston County closed its buildings by 1 p.m. Monday and county beaches and parks were closing at 3 p.m. 

Isaias blasted Puerto Rico as a tropical storm before speeding into a hurricane just north of Haiti and the Dominican Republic and rolling through the Bahamas as a Category 1 hurricane. Though the winds were relatively weak and quickly quashed by dry air, authorities had to evacuate the communities hit hardest by Hurricane Dorian in 2019, where many people still live in temporary shelters.

On Sunday and Monday, the system largely stayed out at sea as it traveled up Florida's length.

Hurricane Wire is a pop-up newsletter during hurricane season that delivers anyone who lives on the East Coast all the information they need to know as storms brew in the Atlantic and beyond.

Meteorologists had expected Isaias, whose winds hovered around the 74 mph threshold that separates tropical storms from hurricanes, to strengthen again and hit Southeast Florida as an organized storm. But dry air and relatively cool water left the system slow, and it's brushed up the Sunshine State shore with relatively little damage.

The fluctuation doesn't indicate any surprising conditions, NWS meteorologist Mike Rowley said. Isaias has consistently hovered around 70 to 80 mph winds, staying near the 74 mph mark that denotes a hurricane.

"It's a matter of a few millibars, a few miles per hour," Rowley said. 

Photos: Lowcountry residents prepapre for Tropical Storm Isaias

Residents across the Lowcountry prepare for the arrival of Tropical Storm Isaias Monday. Forecasters expect the storm to regain hurricane status as it approaches the South Carolina coast. 

By Monday morning, experts predicted that portions of the Atlantic off Georgia's shore had up to 30 percent chances of seeing hurricane-force winds.

But the real impact will come from water, local meteorologists said. Storm surge should stay beneath 3 feet south of Edisto Beach, but could reach 4 feet in the Charleston area and 5 feet north of the South Santee river. Most the state has a slight risk of flash flooding, with moderate warnings along the Grand Strand coast.

The National Hurricane Center predicts up to 10 inches of rainfall in parts of the Palmetto State, though most of the coast will see 2 to 6 inches.

"There will be stuff outside the cone (and) in this case the flooding is going to be probably the worst part," Davidson said. "It could be a little bit north around high tide; it is going to come down to very particular timing."

Charleston and North Charleston have sandbag materials ready for residents, and Holy City residents can park for free until 10 a.m. Tuesday in the garages on Calhoun, Mary, St. Philip, Queen and West Edge streets.

Municipalities across the Lowcountry closed offices and services early Monday. In addition, Fetter Health closed all of its network locations Monday afternoon but planned to have them open at normal hours on Tuesday. 

Mikaela Porter and Shamira McCray contributed to this report.

This is a developing story. Please check back for updates.

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Tropical Storm Isaias will make landfall as a hurricane; Grand Strand area under warning - Charleston Post Courier
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