A powerful storm was pummeling the U.S. East Coast with heavy rains, gusty winds and coastal flooding Sunday, with states of emergency declared in New Jersey and New York City and the surrounding region.

The big picture: Coastal flood warnings were in effect for much of the East Coast, including NYC, from the nor'easter that began slamming parts of the Carolinas on Saturday, and which prompted water rescues in Columbus County, N.C., and Georgetown, S.C., on Sunday.

Latest key messages on significant coastal impacts from a strong coastal storm along the East Coast. weather.gov • Coastal flood-related advisories stretched from northern Florida to New England from the storm that's set to linger into Tuesday, according to a Sunday National Weather Service forecast discussion.

Threat level

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