Irene is moving north, extending tropical storm conditions into Maryland, Virginia, and Delaware.

Top developments:

Image: Floodwaters lap at the foundation of a house along Calico Creek in Morehead City, N.C. (Travis Long / Zuma Press)

Irene makes landfall in North Carolina
Falling tree limb kills man in North Carolina
Pier at Atlantic Beach, N.C., collapses as rain, winds lash coast
At least 2.5 million under evacuation orders; 300,000 in NYC
More than 8,000 flights canceled through Monday

Hurricane Irene news from NBC News

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Special edition today – Hurricane Irene:

– Hurricane Irene heads for the U.S., large waves coming ashore already

– Track Hurricane Irene and get the forecast for your area

– Hurricane preparedness

– Hurricane Irene FEMA updates

– National Hurricane Center Irene updates

This hurricane is no joke. Top developments:

Forecast shifts Irene track farther west, putting large cities closer to center of forecast “cone.”
Bahamas sees some damage; downed trees, power outages in capital.
Tens of thousands evacuate four North Carolina counties, Outer Banks.
NYC to decide tomorrow on whether to order evacuations.

Image: A sign in Frisco on Hatteras Island in the North Carolina Outerbanks (Nicholas Kamm / AFP – Getty Imagess)

Track Hurricane Irene Up the East Coast in Real Time