Archive for the 'Press Release' Category

Rain, strong winds and snow in store for the coming week

September 23, 2019

After a week of settled weather over Aotearoa we head into the start of this week with a change to more Spring-like conditions.

MetService meteorologist Andy Best comments, “An active cold front moving up the South Island today is forecast to deliver heavy rain and generate strong winds over many parts of the island. The front moves across the North Island on Tuesday with Severe Weather Watches and Orange Warnings in place for many areas as well as the possibility of thunderstorms for parts of the upper North Island. People are advised to go to for details on this event.”

In addition to the front affecting the country today and on Tuesday, another front is forecast to move onto the South Island Wednesday morning. This front is expected to bring much colder weather in its wake, as the freezing levels lower dramatically, bringing a distinct wintery feel to conditions over the far south of the country. The origin of the cold air is over southern parts of the Southern Ocean, and as this cold outbreak moves onto the country, we are forecasting snow to around 400 metres over Southland, Fiordland and Otago during Wednesday. Road Snow Warnings may be associated with this event, so keep up to date with the latest weather on the MetService website.

“The maximum temperature in Dunedin on Wednesday is expected to be only 9C and just 8C in Invercargill. Temperatures overnight Wednesday/Thursday are expected to fall to 0C in Christchurch and Blenheim, around 2 or 3C in the northern Wellington suburbs and down to 0C at Masterton as the cold air pushes farther north,” says Best.

The cold southwesterlies are expected to persist over the entire country during Thursday, although the weather over the North Island should become mostly fine. Because of the southwest direction of the wind flow, the South Island is expected to also experience mostly fine weather on Thursday, apart from just a few showers in the south and west, with snow to 600 metres in the far south at first.

Understanding our Severe Weather Watches and Warnings

Outlooks are about looking ahead:

  • To provide advanced information on possible future Watches and/or Warnings
  • Issued routinely once or twice a day
  • Recommendation: Plan

Watches are about being alert:

  • When severe weather is possible, but not sufficiently imminent or certain for a warning to be issued
  • Typically issued 1 – 3 days in advance of potential severe weather.
  • During a Watch: Stay alert

Orange Warnings are about taking action:

  • When severe weather is imminent or is occurring
  • Typically issued 1 – 3 days in advance of potential severe weather
  • In the event of an Orange Warning: Take action

Red Warnings are about taking immediate action:

  • When extremely severe weather is imminent or is occurring
  • Issued when an event is expected to be among the worst that we get – it will have significant impact and it is possible that a lot of people will be affected
  • In the event of a Red Warning: Act now!


To get the most up to date information on severe weather around the country, or any other forecasts, see or download the MetService mobile app

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