ALBANY, Ga. -

Thousands of U.S. Marines and sailors in the path of Isaac are taking shelter at a southwest Georgia military base as the storm approaches the Gulf Coast.

Buses carrying Marines and sailors from Naval Air Station Pensacola in Florida arrived late Monday at Marine Corps Logistics Base-Albany to escape the storm's threat, authorities said.

About 4,000 to 4,800 personnel were expected to be evacuated to the Albany military installation, base spokesman 1st Lt. Kyle Thomas told The Albany Herald.

The decision was made Sunday evening for the Pensacola personnel to evacuate, base officials say.

The Albany installation activated its base Emergency Operations Center in preparation for the incoming personnel. The Marines and sailors are being housed in warehouses equipped with cots, and showers have been set up in tents outside the warehouse.

In the event of destructive weather, military installations have agreements with each other in case a base's occupants have to evacuate.

"We are usually the host," Thomas said. "Since we are just enough distance away from the coast, that usually is the case."

Forecasters predict that Isaac could flood the coasts of Louisiana, Mississippi, Alabama and Florida with storm surge and heavy rains.