Aucklanders have been told to brace themselves as wild weather sets to worsen.
Auckland Civil Defence and the Auckland City Council have warned of further flooding and slip damage with intense rain due to hit the region around 11am.
MetService said a further 50mm to 80mm of rain will hit Auckland, with thunderstorms possible.
"We're going to get downpours that will get impact," Auckland Council head of emergency management operations Aaron Davis said.
"The worst of the weather is still ahead of us."
Motorists have been warned to stay home if possible and were advised to avoid flooded roads.
According to MetService, the rain is supposed to intensify, battering Auckland until 11pm tonight.
The intense weather comes less than 24 hours after a cliff collapsed in Kohimarama in Auckland during heavy rain, damaging 11 apartments.
The large slip, approximately 10 metres wide, collapsed into an apartment complex at 11 Kohimarama Road.
Meanwhile, slips on Auckland's North Shore have led authorities to evacuate waterfront homes.
Cliffs, trees, gardens and fences at the rear of three properties on Torbay's Sharon Road have slipped into the sea, the Fire Service says.
The slip was 10 metres from one house, the fire service reported on Wednesday morning.
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