Wet, windy and warm start to the weekend

September 15, 2016

There will be a period of heavy rain for western and northern parts of the country on Friday and Saturday, with strong to gale northwest winds also expected to affect parts of New Zealand.  The winds are expected to bring a warm start to the weekend for some, pushing east coast temperatures into the early twenties.

MetService Meteorologist Peter Little commented, “The heaviest rain is expected about the Southern Alps, Tararua Range and Mt Taranaki, where over 150mm of rain could accumulate and a Heavy Rain Warning has been issued for these areas”.

On Saturday, wet weather is forecast for much of the North Island as the front moves eastwards, with heavy falls and thunderstorms likely in western areas.  Mr Little said, “If you live in the north or west of the North Island it would be a good idea to have indoor plans for Saturday as the forecast is for a very wet day”.

2016-09-15

Meanwhile, a weak ridge of high pressure behind the front delivers mostly fine weather to the South Island on Saturday, where the forecast for Saturday evening’s All Blacks’ Investec Rugby Championship match against South Africa in Christchurch is fine with light winds.

The rain over the North Island eases to isolated showers early Sunday morning, with long fine spells developing in northern and western regions.  Colder southerlies spread up the South Island, and the mostly fine weather there is replaced by scattered showers.  “People in the east of the South Island in particular will notice this cooler change, as the forecast maximum temperature of 22C for Christchurch on Friday gets chopped back to just 12C on Sunday,“ added Mr Little.

Official Severe Weather Watches and Warnings are reviewed and re-issued by MetService at least every twelve hours, and more often if necessary. To get the most up to date information on severe weather around the country, or any other forecasts, see metservice.com or on mobile devices at m.metservice.com. You can also follow our updates on MetService TV, at MetService New Zealand on Facebook, @metservice and @MetServiceWARN on Twitter and at blog.metservice.com

 

MetService issues Warnings, Watches and Outlooks for severe weather over New Zealand.

Warnings are about taking action when severe weather is imminent or is occurring. They are issued only when required.
Recommendation: ACT 

Watches are about being alert when severe weather is possible, but not sufficiently imminent or certain for a Warning to be issued. They are issued only when required.
Recommendation: BE READY 

Outlooks are about looking ahead, providing advance information on possible future Watches and/or Warnings. They are issued routinely once or twice a day.
Recommendation: PLAN

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