A deep sup-tropical low heads toward New Zealand

September 23, 2013

After the heavy thundery downpours that moved across many parts of New Zealand during the weekend, Monday provides a brief respite from the weather. However, the outlook for the rest of the week is bleak.

MetService is keeping a very close eye on a rapidly-deepening area of low pressure of tropical origin which is expected to approach the far north of the North Island during Tuesday. Over the next few days, this low is heading for northern and eastern parts of New Zealand and is set to bring heavy rain, strong to severe easterly gales and large waves.

MetService Media and Communications Meteorologist Daniel Corbett commented,”This major low will carry an abundant supply of tropical moisture with it, bringing a heightened risk of flooding, especially across northern and eastern regions in the next day or so.”

Intense rain and severe easterly gales will spread down across the North Island, reaching the top of the South Island from late Tuesday.

“The position of the low in relation to the northeast coast of the North Island could give rise to local beach erosion and the risk of flooding from the sea,” Corbett went on to say.

MetService has already issued Severe Weather Watches and Warnings covering all areas of the North Island for this significant event, and it will be important for the public to stay up-to-date with developments.

This intense low will gradually weaken on Thursday as the area of heavy rain lies across eastern parts of the South Island. By the end of the week, the low will have departed – but disturbed westerlies are likely to take its place.

The latest forecasts and any watches/warnings can be found at metservice.com or on mobile devices at m.metservice.com. You can also follow our updates on MetService TV, @metservice on Twitter and at blog.metservice.com.

For further information please contact:
Daniel Corbett Media and Communications Meteorologist (04)4700 754

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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
* 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
* Issued only when required
* Recommendation: BE READY
Outlooks are about looking ahead:
* To provide advance information on possible future Watches and/or Warnings
* Issued routinely once or twice a day
* Recommendation: PLAN
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