Frank Forcinom, 50, of Long Beach, helps his friend Patrick...

Frank Forcinom, 50, of Long Beach, helps his friend Patrick Flynn, 55, board up his Long Beach home in preparation for Hurricane Sandy. (Oct. 27, 2012) Credit: Anthony Lanzilote

"The National Weather Service has advised us that this storm will go down as one of the top 10 in Suffolk County history," said Joe Williams, commissioner of Suffolk County's Department of Fire, Rescue and Emergency Services.

The Town of Islip ordered a mandatory evacuation for Fire Island to be completed by 2 p.m. Sunday.

The storm is likely to cause massive transit disruptions as soon as Sunday night.

Among the county's biggest concerns, Williams said, are water surges at local bays and rivers that could exceed 10 feet, potentially flooding streets and homes. "People need to take this storm very seriously," he said.

The impact could be even greater as Sandy arrives during Monday's full moon, when tides are near their highest.

As a precaution, Good Samaritan Hospital Medical Center in West Islip is evacuating 100 patients from their lower floors, Williams said. Long Beach Medical Center also agreed to relocate all patients to Nassau University Medical Center in East Meadow, Mangano said.

Mangano ordered mandatory evacuations for Long Beach Medical Center and four nursing home facilities on the barrier island. He also announced that all county parks, marinas and senior centers would close Sunday at 5 p.m.

New York City Mayor Michael Bloomberg Saturday held off on ordering evacuations, but officials said lower Manhattan is vulnerable to flooding. They predicted a possible record storm surge in that area tomorrow night.

Forecasters have predicted some areas across the nation will be pelted with 12 inches of rain, 2 feet of snow and sustained 40 to 50 mph winds. They warned the threat from Sandy isn't limited to the coast, and they expect the storm to also wreak havoc well inland.

With Mackenzie Issler,

Igor Kossov and AP

Human trafficking crackdown ... Trial of ex-Abercrombie & Fitch CEO delayed... Tropical Storm Dolly Credit: Newsday

Drone used in burglary arrest ... Human trafficking crackdown ... Trial of ex-Abercrombie & Fitch CEO delayed ... Tropical Storm Dolly

Human trafficking crackdown ... Trial of ex-Abercrombie & Fitch CEO delayed... Tropical Storm Dolly Credit: Newsday

Drone used in burglary arrest ... Human trafficking crackdown ... Trial of ex-Abercrombie & Fitch CEO delayed ... Tropical Storm Dolly

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