HALIFAX -- The Canadian Hurricane Centre says southwestern Nova Scotia and much of the Maritimes will likely get a good soaking this weekend from the first named storm of the hurricane season.

The Halifax centre says Andrea is about 100 kilometres south-southwest of Savannah, Georgia with top sustained winds of 75 kilometres per hour and moving northeast by about 30 kilometres per hour.

The centre expects it to become post-tropical by later today but still drop 25 to 45 millimetres of rain on southwestern Nova Scotia starting this evening and move to southwest Newfoundland by Saturday evening.

The Centre says it seems unlikely at this point that winds associated with the storm will reach the 90-kilometre hour threshold for a wind warning. The strongest gusts are expected along exposed areas of Nova Scotia.

Gale warnings have been issued for all marine waters south of Nova Scotia for Saturday, where wave heights of four to five metres will develop.

Andrea has hammered Florida with rain, heavy winds, and tornadoes as it moved toward the coast of Georgia and the Carolinas. The U.S. National Hurricane Center in Miami said early Friday that the storm was losing speed and was not expected to become a hurricane.

With files from The Associated Press