A strong wind warning has ben issued for the lower North Island and the Marlborough Sounds until 10am on Friday as heavy rain moves up the West Coast of the South Island.
Metservice has warned Wellington, Wairarapa and the Marlborough sounds of severe gale northwesterlies gusting up to 120 kilometres an hour in exposed places.
A heavy rain warning is also in place for the Tararua range for 24 hours from 9pm, with up to 150 millimetres of rain forecast.
Heavy rain warnings have also been issued for Fiordland north of Doubtful Sound, the headwaters of Otago's Lakes and Rivers and Westland District from Wednesday night.
Warnings come into force Thursday for the headwaters Canterbury's Lakes and Rivers about and south of Arthur's Pass, the ranges of Buller and Grey Districts and the ranges of the Tasman District northwest of Motueka.
Further heavy rain is expected Friday evening and Saturday in some areas.
Metservice said in Otago there may be high river levels or flooding beyond the warning area due to the lingering effects of the recent heavy rain.
It advises people to clear drains and gutters to prepare for heavy rain, avoid low-lying areas and drive cautiously.
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