A heavy rain alert is now in force for the eastern half of Viti Levu that includes Navua, Suva, Nausori, Korovou, Rakiraki and Naitasiri, and Vanua Levu, Taveuni, the nearby smaller islands, Lau and Lomaiviti group.
The Nadi Weather Office says a trough of low pressure with associated cloud and rain lies slow moving over the group and it is expected to affect the group for the next few days.
People can expect occasional rain, heavy at times and few thunderstorms over Vanua Levu, Taveuni and nearby smaller islands, Lau and Lomaiviti group, the eastern parts and interior of the other larger islands.
Rain will become frequent from later today.
Localised heavy falls may lead to flash flooding of low lying areas.