Residents up and down the East Coast are being urged to move inland ahead of a potentially huge storm formed by the merging of Hurricane Sandy with two wintry weather systems.
Sandy was plodding up the coast early Sunday, bringing steady rains whipped by gusting winds to North Carolina. It's expected to come ashore late Monday or early Tuesday in the mid-Atlantic.
But forecasters say that wherever the storm hits, it will likely bring sheets of rain, high winds and heavy snow a third of the country.
Amtrak has begun canceling train service to parts of the East Coast. Airlines are adding Sunday flights out of New York City and Washington in preparation for Monday flight cancellations.
New York's governor is considering shutting down the city's subways to avoid flooding. And half a dozen states warned residents to prepare for several days of lost power.