Dry Tortugas National Park has reopened after passage of Hurricane Idalia/NPS

Many units of the National Park System that closed due to storm Idalia have either reopened or announced plans to reopen Friday.

In Florida, Dry Tortugas National Park and Canaveral National Seashore reopened Thursday, along with Fort Sumter and Fort Moultrie National Historical Park and Charles Pinckney National Historic Site in South Carolina.

In North Carolina, Cape Hatteras National Seashore, Fort Raleigh National Historic Site and Wright Brothers National Memorial all planned to reopen all facilities, except for Cape Point and Ocracoke campgrounds, at normal times on Friday.

"While conditions associated with Tropical Storm Idalia are improving, standing water and sand on many roads continue to be a hazard for travelers on Hatteras and Ocracoke islands," the National Park Service reported from Cape Hatteras. "Additionally, the National Weather Service forecast indicates that ocean overwash is likely to occur along vulnerable portions of N.C. Highway 12 during high tide cycles this evening and that elevated water levels may occur through multiple tide cycles through Saturday morning. Travel through vulnerable areas around high tide this evening should be avoided.

"Vulnerable portions of N.C. Highway 12 include:

• Ocracoke Island – along a two-mile stretch of highway south of off-road vehicle ramp 59
• Southern Hatteras Island – between the villages of Hatteras and Frisco
• Central Hatteras Island – along the northern boundary of Buxton and along Ocean View Drive in Avon
• Northern Hatteras Island – along N.C. Highway 12, old N.C. Highway 12 and several side streets in northern Rodanthe, and between the Pea Island Visitor Center and Basnight Bridge."

Cumberland Island National Seashore in Georgia also announced it would reopen Friday.