Tropical Depression TD06F was analysed about 370km east of Cikobia at 3pm today.
It is moving south-southwest at 25km/hr.
The Depression is expected to track southwards over the Lau Group before exiting Fiji waters later Saturday.
Fiji Metrological Services says the potential for this system to develop into a tropical cyclone in the next 24 to 48 hours is moderate.
For the Lau and Lomaiviti groups, Vanua Levu, Taveuni and nearby smaller islands, eastern parts and interior of Viti Levu, expect moderate to fresh easterly winds increasing to strong with average speeds of 45km/hr and gusts to 65km/hr from later today.
Elsewhere, expect moderate southeasterly winds. Cloudy periods with afternoon or evening showers and isolated thunderstorms with heavy falls is also expected elsewhere.
Localised heavy falls may lead to flash flooding of low lying areas.