Gov. Haley Barbour says Hurricane Katrina victims still living in temporary housing along Mississippi's coastline should begin evacuating this weekend as Gustav approaches the Gulf Coast.

Forecasters say the storm could hit anywhere from the Florida Panhandle to Texas as a major hurricane next week, though they caution it is difficult to predict a storm's track and strength several days in advance.

There are 4,184 government-provided mobile homes and trailers that remain occupied along Mississippi's 70-mile coast, which was badly hit by Katrina three years ago. Officials are concerned because trailers are vulnerable to damage in high winds.

Barbour says mandatory evacuation notices are going out to trailer residents Saturday.

Evacuations of trailers and mobile homes in Mississippi's coastal Harrison and Hancock counties will start Sunday morning and will begin Monday in Jackson County.

The order also applies to some of the 2,800 cottages built as alternatives to trailers. Only those cottages in flood zones are subject to mandatory evacuation.

Barbour said Friday that it's too early for Mississippi to decide if a wider evacuation order will be needed. He says those decisions will be made in the coming days.