The system has weakened slightly and may become a Tropical Depression as it passes through the island chain on Friday night into Saturday.
The Department of Disaster Management (ODM) is advising the population of the South side of the island to continue to monitor weather reports as the storm approaches the Lesser Antilles.
The ODM also advises in the event of heavy rainfall, to avoid low lying areas; look out for possible street flooding; and if the rainfall is persistent, while driving along hill sides, watch out for possible rock falls.
The ODM will continue to closely monitor TS Maria as it approaches the islands of the Lesser Antilles.