Weather: South Island in firing line as MetService issues weather warnings, watches

The South Island is in the firing line on the weather front on Wednesday with rain and snow expected to reach warning levels for some parts. 

It comes after most of New Zealand was battered by heavy wind, rain or snow on Tuesday, which saw MetService issue more than 40 weather warnings and watches to both the North and South Islands.

The wild weather forced the closure of several key routes around New Zealand and caused power outages and self-evacuations in some areas.

On Wednesday morning, 10 major roads across New Zealand remained closed - seven of which were in the South Island - including Lindis Pass because of heavy snow, according to Waka Kotahi. 

North Island 

The bottom of the North Island could also see some bad weather on Wednesday with a heavy swell warning in place for Wairarapa and the Kapiti-Porirua Coast up to Otaki, with waves rising to as high as 4.5 metres. 

A strong wind watch is also in place until 4pm on Wednesday for Hawke's Bay south of Hastings, the Wairarapa, Whanganui, Manawatu, Kapiti-Horowhenua and Wellington.

South Island 

MetService has issued 15 weather warnings and watches for the South Island.

A heavy snow warning is in place for the Canterbury High Country which could disrupt travel in affected areas, damage trees and powerlines and cold conditions may cause stress for livestock, MetService said. 

A heavy rain warning is in place for Canterbury south of Waimakariri River, North Otago and Dunedin, which could see rain cause streams and rivers to rise rapidly and a chance of surface flooding and slips.

A heavy rain watch has been issued for Buller while there is also a strong wind watch in place for the Marlborough Sounds and Christchurch including the Banks Peninsula.

A heavy snow watch is in place for North Otago, Central Otago and the Queenstown Lakes Clutha, Southland, and Fiordland with snow down to 400m.