DUCK, N.C. — A year after being walloped by Hurricane Irene, residents rushed to put away boats, harvest crops and sandbag boardwalks Friday as the Eastern Seaboard braced for a rare megastorm that experts said would cause much greater havoc.

Hurricane Sandy, moving north from the Caribbean, was expected to make landfall Monday night near the Delaware coast, then hit two winter weather systems as it moves inland, creating a hybrid monster storm that could bring nearly a foot of rain, high winds and up to 2 feet of snow. Experts said the storm would be wider and stronger than last year’s Irene, which caused more than $15 billion in damage, and could rival the worst East Coast storm on record.

Officials did not mince words, telling people to be prepared for several days without electricity. Jersey Shore beach towns began issuing voluntary evacuations and protecting boardwalks. Atlantic Beach casinos made contingency plans to close, and officials advised residents of flood-prone areas to stay with family or be ready to leave. Airlines said to expect cancellations and waived change fees for passengers who want to reschedule.

“Be forewarned,” said Connecticut Gov. Dannel P. Malloy. “Assume that you will be in the midst of flooding conditions, the likes of which you may not have seen at any of the major storms that have occurred over the last 30 years.”

Many storm-seasoned residents had not begun to panic. Along North Carolina’s fragile Outer Banks, no evacuations had been ordered and ferries hadn’t yet been closed. Plenty of stores remained open and houses still featured Halloween decorations outside, as rain started to roll in.

“I’ll never evacuate again,” said Lori Hilby, manager of a natural foods market in Duck, N.C., who left her home before Hurricane Irene struck last August. “Whenever I evacuate, I always end up somewhere and they lose power and my house is fine. So I’m always wishing I was home.”

Farther north, residents were making more cautious preparations. Patrick and Heather Peters pulled into their driveway in Bloomsburg, Pa., with a kerosene heater, 12 gallons of water, paper plates, batteries, flashlights and the last lantern on Wal-Mart’s shelf. They’ve also rented a U-Haul in case the forecast gets worse over the weekend.

“I’m not screwing around this time,” said Heather Peters, whose town was devastated last year by flooding after Hurricane Irene.

Copyright 2012 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.