The Met Office has issued another bulletin saying the country should begin to experience Tropical Storm conditiopns within the next 18 to 24 hours.
The bulletin was issued at 6 am, which means the conditions should start anywhere between midnight and 6 am Tuesday.
It notes that the system has not as yet developed into a Tropical Cyclone but says it has the potential to become one.
It is located 1005 kilometres east-southeast of Trinidad and Tobago and is moving west at 37 kilometres per hour.
The system contains maximum sustained winds of 65 km/hr with higher gusts.
It is expected to produce 50 to 125 mm of rainfall over Trinidad and Tobago.
The Met Office's next bulletin will be at midday today.