CNN's Gary Tuchman investigates. He said Dennis could sit off the Mid-Atlantic coast for several days before heading off into the North Atlantic.
Isolated tornadoes are possible in portions of coastal North Carolina overnight.
Hurricane warnings were discontinued south of Cape Lookout , North Carolina, on Monday evening, but remained in effect north to the Virginia border, a stretch of about 135 miles along the coast. According to Jarrell, the weather systems that have been driving the storm northeast had passed it by, increasing the likelihood that the storm will stall off the coast of the North Carolina-Virginia border. It could even begin to drift back toward the coast. If it stays as strong as it's been, that's a scary prospect. Fragile barrier islands were slammed by 92 mph winds and up to 8 inches or rain.