Currently brewing in the Tasman, a strong and chilly weather system is heading towards Aotearoa.
"These swells could bring debris and surface flooding to roads."
NIWA says rain, snow, lightning and powerful winds are about to pummel the country.
MetService has issued nearly a dozen severe weather warnings lasting through to Monday.
MetService has issued several heavy rain watches and warnings for the South Island.
Nearly 200 homes were damaged by flooding after heavy rains and three fishermen died at sea during this week's storm.
Focus now turns to assessing the damage and cleaning up.
NIWA says it's looking fairly cloudy for much of the country.
High tide is due at 9pm on Wednesday, making locals anxious.
