The Samoa Meteorology Service has issued a heavy rain warning and flood advisory for the whole of Samoa as the bad weather continues.

The severe weather information was issued by the Meteorology service on Saturday and blamed an ‘active convergence zone’ that remained within the vicinity of Samoa for the heavy rainfall, thunderstorms and gusty winds across the group.

"This system is predicted to exit the region by tomorrow (Sunday) as it slowly drifting southward," the warning reads.

Potential impact include heavy downpours with poor visibility, gusty winds, foggy and slippery roads over mountain passes and ranges, pooling near roadsides and waterways. 

According to the weather service’s forecast, from Monday through to Thursday this week the low pressure system just west of Fiji islands will slowly puncture east to induce some showers and light variable winds for Monday into Tuesday morning.

"The high pressure system centred over the Tasman sea is expected to enter the region by Tuesday evening, and will give way to the tradewind regime to prevail across the island chain through Friday morning."

"Another trough of low pressure will enter the area by Friday evening. Hence, anticipate isolated showers, some moderate falls throughout the long term forecast. Light variable winds for Monday and Tuesday, turning southeast by Tuesday night into Friday with gentle to moderate wind force as the high pressure system enters the area."