MIAMI—Tropical Storm Colin formed along the South Carolina coast on Saturday morning, bringing rain and winds, though the storm later weakened and conditions are expected to improve by Monday’s July Fourth celebrations.
The National Hurricane Center in Miami warned of the possibility of localized flash flooding along the Carolinas coast through Sunday morning.
By late Saturday night, Colin had weakened into a tropical depression and forecasters discontinued the tropical storm warning that had been in effect for parts of the North Carolina coast.
At 11 p.m. ET Saturday, the storm’s center was about 15 miles (20 kilometers) north of Wilmington, North Carolina, with maximum sustained winds of 35 mph (55 kph). It was moving northeast at 7 mph (11 kph).
The storm is expected to further weaken and dissipate completely by Sunday night or Monday morning.
“Colin will continue to produce locally heavy rainfall across coastal portions of North Carolina through Sunday morning, where an additional 1 to 2 inches of rainfall is possible,” the center said.
Some Fourth of July celebrations planned Saturday in Charleston, South Carolina, were canceled after significant water had pooled on the field at Joseph P. Riley Jr. Park and more rain was expected.
“Obviously, we’re disappointed,” said Scott Watson, the city’s director of cultural affairs. “This promised to be a great family event, and we hate to have to cancel.”
Organizers were also forced to cancel a festival planned in Southport, North Carolina.
“The safety of Festival goers, vendors, volunteers, emergency workers and everyone is our highest priority,” festival spokesperson Trisha Howarth said in a statement.
Separately, the center of Tropical Storm Bonnie rolled into the Pacific on Saturday after a rapid march across Central America, where it caused flooding, downed trees and forced thousands of people to evacuate in Nicaragua and Costa Rica. There were no immediate reports of deaths.
By Saturday night, Bonnie was centered about 165 miles (270 kilometers) south of San Salvador, El Salvador, with maximum sustained winds of 60 mph (95 kph). It was moving to the west at 17 mph (28 kph).
It’s one of the rare storms to make an Atlantic to Pacific crossing without losing tropical storm force, thus maintaining its name. Forecasters said Bonnie is likely to become a hurricane by Monday off the southern coast of Mexico, but is unlikely to make a direct hit on land.
Many Nicaraguans still remember Hurricane Joan, a powerful 1988 storm that wreaked havoc on the coast and caused almost 150 deaths in the country.
“We are waiting for the storm to hit, hoping that it won’t destroy our region,” Bluefields resident Ricardo Gómez, who was 8 when Joan hit, said before Bonnie arrived.
The area was also battered by two powerful hurricanes, Eta and Iota, in quick succession in 2020, causing an estimated $700 million in damage.
Officials in Costa Rica expressed concern that the storm would unleash landslides and flooding in an area already saturated by days of rain. The government said seven shelters in the northern part of the country already held nearly 700 people displaced by flooding.