The Samoa Meteorology Office (MET) has issued a warning of heavy rainfall for all parts of Samoa.

A spokesperson for the MET told Samoa Observer that there is a convergence zone north of Samoa with a trough of low pressure triggering rainfall and thunderstorm.

"The convergence zone has moved up north of Samoa but a trough of low pressure is on Samoa hence why we had rainfalls and thunderstorms last night and today," he said.

The convergence zone is within the vicinity of the country, the spokesperson added, consequently the heavy rain warning will remain in effect for all of Samoa.

"The only warning that's in effect for Samoa is the heavy rainfall warning, but because these rainfall won't trigger any flooding that's why the flood advisory is not effective as of now. However, we will be monitoring the trough of low pressure that's currently on Samoa right now," he added.

While there is a chance of a cyclone developing due to the low pressure systems, he indicated that the country is not vulnerable at the moment to the extreme weather condition.

"Samoa will be facing only the heavy rainfalls. The severe weather conditions yesterday and last night was due to the convergence zone. Since it's moved to the north of Samoa, we only have the trough of low pressure on Samoa.”

The potential impact of the forecasted heavy downpour will include poor visibility and foggy and slippery roads over mountain passes and ranges. There will also be gusty winds at times, pooling near roadsides and waterways.

Scattered rain with heavy fall at times is forecasted for Samoa on Sunday.