RALEIGH, N.C. (WNCN) — Update: On Wednesday afternoon, North Carolina Gov. Roy Cooper added more counties to the state of emergency declaration, bringing the total number to eight.
The four counties added Wednesday are all along the coast: Pender, Onslow, Carteret and Dare. On Tuesday, a state of emergency was declared in four southeastern counties, two of which are coastal: New Hanover, Brunswick, Bladen and Columbus.
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North Carolina Gov. Roy Cooper Tuesday declared a state of emergency in southeastern counties as more than 50 roads along with many schools and businesses were still closed after a no-name storm hit the coast, spawning a tornado and dumping nearly 21 inches of rain near Wilmington Monday.
North Carolina braced for a storm that forecasters warned could bring heavy rain — as much as 6 to 8 inches in some spots. But one narrow band got a “firehose” that dumped historic rain amounts in a so-called 1,000-year flood, triggering flash floods that damaged many homes, businesses and roads.
As of Tuesday, 52 roads in 12 counties were closed including seven key routes and a main coastal highway with the majority in Brunswick County, which has closed schools this entire week. Major road closures include portions of U.S. 17, N.C. 211 and N.C. 133 in Brunswick County and a stretch of N.C. 12 on the northern end of Ocracoke Island.
Slideshow of North Carolina storm flooding and damage
The state of emergency is for Bladen, Brunswick, Columbus and New Hanover counties after the storm that left homes flooded, cars submerged and schools closed Tuesday.
Monday’s deluge centered on Carolina Beach south of Wilmington, where more than 18 inches of rain fell in 12 hours and almost 21 overall. That much rain qualifies as a 1,000-year flood expected only once in that length of time, meteorologists at the National Weather Service office in Wilmington said.
Some areas were hit particularly hard as the storm took a narrow path over the region, “causing a bit of a firehose effect,” NWS meteorologist Lauren Warner said. The agency’s forecasts allowed for “locally higher” amounts, but those weren’t close to what eventually fell.
The heavy rain flooded creeks and streams, causing major damage to U.S. 17 — keeping it closed south of Wilmington Tuesday. The key highway’s closure leaves no straight route from Wilmington to Brunswick County islands, including Oak Island, Holden Beach, Ocean Isle Beach, and Sunset Beach. Even some side roads around U.S. 17 are damaged from flooding.
“If that had moved just a little to the left or continued l the left, that would have mitigated some of the totals that we saw or perhaps spread them out over a wider area,” said weather forecaster Warner. The worst flooding occurred over parts of just two counties, her colleague Tim Armstrong said.
Ocean Isle Beach with under 4 inches of rain is just over 30 miles from Carolina Beach — the worst hit.
Fire officials said Tuesday they rescued 117 people in Carolina and Kure Beach along with nearly 20 pets during 50 calls for help.
Cooper said the state of emergency declaration will make additional assistance available for the region.
Along North Carolina’s Outer Banks, the storm closed vulnerable coastal highway N.C. 12 on Ocracoke Island and threatened several homes in Rodanthe, where erosion and rising sea levels have destroyed more than a half-dozen beachfront homes in just four years.
Carolina Beach Mayor Lynn Barbee said the 21 inches that fell on his town was impossible to fully prepare for even in a place accustomed to tropical downpours.
“I don’t think I’ve ever seen it rain so hard and for so long,” said Barbee, who has lived on the coast for most of his life. “Not rain bands that get harder and let up or a front moving through. It just sat on top of us.”
The storm system was known as Potential Tropical Cyclone No. 8, but it never organized enough to become the eighth named tropical storm of the season.
The lack of a name added to the difficulty, Barbee said, since people pay more attention to named storms or hurricanes. Tourists were still arriving for beach vacations Monday at the height of the deluge. One family from Pennsylvania lost their van to the floodwaters and are in a shelter instead of their vacation rental, the mayor said.
“We’ve developed a communication dialogue. We communicate cones of uncertainty, expected path, time of arrival, strength on the Saffer-Simpson scale. People know what to expect. But suddenly we’re having storms that don’t fit on these scales,” Barbee said.
Carolina Beach is still cleaning up, and the mayor expects things to be back to normal by the weekend. But town officials are going to keep trying to figure out how to plan for heavy rain like they plan for 18 inches of water to come in from the ocean during a hurricane’s storm surge.
“A foot-and-a-half that falls out of the sky instead of from the ocean — where does it go?” Barbee said. “We’re finding it in neighborhoods that have never flooded. It’s falling water and not rising water.”
Floodwaters swamped U.S. 17 at several points for most of the day, trapping some drivers on high ground that became an island.
Emergency workers brought food and water to people as they waited for the waters to recede, Brunswick County emergency officials said. No deaths were reported but dozens of roads in the county were damaged and many washed out.
Gov. Roy Cooper signed an executive order Tuesday declaring a state of emergency for Brunswick and three other southeastern counties, which the governor said will make additional assistance available for the region.
It wasn’t the region’s first historic flood by any measure. The same area has seen four other floods of a lifetime in the past 25 years from Hurricane Floyd in 1999, unnamed storms in 2010 and 2015, and the benchmark flood with 30 inches of rain from Hurricane Florence in 2018.
The Atlantic hurricane season continues through the end of November.
In an updated hurricane outlook last month, the National Oceanic and Atmospheric Administration was still predicting a highly active season thanks to near-record sea surface temperatures and the possibility of La Nina. Emergency management officials have urged people to stay prepared.
Elsewhere in the Atlantic, Gordon remained a tropical depression as it swirled through open ocean waters. Gordon could either dissolve in upcoming days or strengthen back into a tropical storm, forecasters said.