Brattleboro, Vermont (CNN) - As a much-weakened Irene entered Canada, it left parts of the U.S. East Coast still grappling Monday with dangerous floodwaters, widespread power outages and stranded residents.
At least 21 deaths in nine states were blamed on Irene, which fizzled to a post-tropical cyclone and headed over eastern Canada on Monday.
In North Carolina, more than 340,000 customers were without power Monday, down from more than 440,000 on Sunday night, the state's division of emergency management said.
Dominion Power reported more than 600,000 customers were without power in Virginia and northern North Carolina.
As many as 200 residents were isolated and without power Monday on Ocracoke Island, near where Irene had first made landfall as a hurricane on Saturday. Supply transport to Ocracoke was hampered as ocean waves dislodged large chunks of a key roadway.
Dunes at Ocracoke's northern end "have apparently been spread across the road, so no one yet knows how badly the pavement is damaged," said Clayton Gaskill, manager of Ocracoke's tiny FM radio station WOVV.
This morning on American Morning, we spoke with North Carolina Gov. Bev. Perdue on the latest in the rescue efforts and the extent of the damage in the state.