April 12, 2017

MetService is advising New Zealanders to prepare for Cyclone Cook which is expected to make landfall in an area from Coromandel Peninsula to Western Bay of Plenty around 6pm Thursday, travelling south through the North Island and is expected to track over central New Zealand around midnight Thursday, then pass just east of Banks Peninsula around 6am Friday, before continuing south.

Although fast-moving, Cyclone Cook will be destructive and MetService Expert Meteorologists have issued Severe Wind Warnings for the whole of the North Island apart from Northland which is on a Severe Wind Watch. These warnings are in addition to those for heavy rain and you can get the latest Severe Weather Warnings and Watches at

“Given the current track of Cyclone Cook, our concern is for Coromandel Peninsula, Bay of Plenty, Auckland and Waikato where we are expecting wind gusts of 150km/h or more and heavy downpours of rain,” said Communications Meteorologist Lisa Murray, “in addition, this system will also cause rain and damaging wind for the rest of the North Island as it moves south, and will then impact eastern areas of the South Island.”

As Cyclone Cook approaches north-facing coastal areas from Northland to Hicks Bay, people should also prepare for large swells which will contribute to coastal inundation and erosion.

Ms Murray warns, “This is an extreme weather event and people should not take this warning likely. Please consider securing property, moving animals to safety, and cancelling or postponing travel where possible.”

People should be prepared in case of loss of power or becoming isolated due to road closure and are advised to listen to their local Civil Defence for updates. Many places are already getting heavy rain from a Low and its preceding trough which came from the Tasman Sea. Cyclone Cook is expected to arrive at the tail end of that rain, with little or no reprieve in between.

“Soil is already saturated after last week’s rain event, so, add the rain from the Tasman Low and then the wind and rain from Cyclone Cook and you have the ingredients for large scale damage such as fallen trees, landslips and rapidly-rising rivers and streams.”

Latest track map for TC Cook based on 11/1800Z analysis. Note that all times on this chart are NZ local time.

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 or on mobile devices at You can also follow our updates on MetService TV, at MetService New Zealand on Facebook@metservice  and @MetServiceWARN on Twitter and at

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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