Wild weather spreads north

The low-pressure system that has wreaked havoc on the west coast of the South Island is set to continue travelling north over the next couple of days.

MetService says that Hokitika airport reported almost 200mm of rainfall in 24 hours, while figures in the ranges to the east were higher still. On the other side of the Southern Alps, large parts of Central Otago and Canterbury received a covering of snowfall.

Severe weather warnings and watches remain in place for many parts of the country and as rain spreads northwards, it looks like a wet and windy start to the weekend for the North Island.

The deep area of low pressure that generated severe weather across the South Island pulls away to the south, leaving a cool southerly feed of air over the region. Meanwhile, rain and strong winds will continue to push up onto the North Island.

Severe weather warnings remain in place for Wellington, the Kapiti coast and across into Wairarapa. While, parts of Taranaki and the central Plateau will receive more rain on today and into Saturday, with snow likely to return to the Desert road and the Volcanoes.

MetService forecasts suggest that rain will continue to track northwards during Saturday accompanied by strong and gusty northwesterly winds. Areas from Waikato to Northland and the Bay of Plenty are likely to catch the final throws of the storm on Saturday. After a wet Saturday in Auckland, the weather is set to improve for Sunday, but still a few showers are left to clear.

Although there has been plenty of talk of cold weather over the last few days, the temperatures across the eastern parts of the North Island are likely to remain very mild for this time of the year says MetService. Temperatures in Napier and Hastings are predicted to climb into the high teens and even reach 20C on Saturday.

"The start of next week sees the cold weather push right across the country and temperatures across much of New Zealand will really struggle during the first few nights of next week," says MetService meteorologist John Law.

The return of cold air plus a building high pressure are likely to bring widespread frosts across both the North and South Island. "At this stage, temperatures about central and eastern parts of the South Island for Tuesday morning look to drop well below freezing, with severe frosts forecast in places," says Law.