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Heavy rain and thunderstorms predicted again

Another 24 hours of heavy rain and isolated thunders are in the forecast again for many parts of New Zealand as wintry cold front approaches New Zealand from the Tasman Sea today.

The front, expected to make landfall tonight along the west coast, will see clouds increasing throughout the day and rain arriving from this afternoon in the west.

A high north of New Zealand will be squashed by a low in the Tasman Sea, creating strong north to north west winds for many places from later today and into Friday.

Rain warnings are already in force for the West Coast and believes rain warnings may be possible for other areas.

However most of the regions recently hit by flooding should escape the worst of the rain – just Wellington and eastern Bay of Plenty remain at risk for more flooding rains.

Isolated thunderstorms are also in the mix as the front sucks cold air from well south of New Zealand and combines it with warmer air in the north Tasman Sea. has “high confidence” at 90% for thunderstorms from Taranaki to Northland, including Auckland.  WeatherWatch believes the chance of thunderstorms will be higher for Auckland in this event than the Queens Birthday Weekend storm, however points out that again thunderstorms will be isolated and a 100km difference could see Aucklanders again miss the storms – or be directly hit.

As of 5am Thursday morning MetService had a “high risk” of thunderstorms for Northland and a low risk of “Severe” thunderstorms for Thursday night.  Their severe weather outlook doesn’t extend into Friday until their mid morning update on Thursday.


Guest on 9/06/2010 10:31pm

Had some brilliant lightning on Sunday night here in Whangarei so here’s hoping it happens again!

Lynley on 9/06/2010 8:28pm

I have been bitterly disappointed in recent weeks over the distinct lack of thunder and lightning for Auckland when it has been forecast. I not-so-secretly hope it comes to pass because nothing beats a good thunderstorm on a wintery night when you’re toasty warm inside your house, the rain is drilling the roof, arresting flashes sear the darkness accompanied by the violent eruption of thunder.

WW Forecast Team on 9/06/2010 9:17pm

Hi Lynley, I’m the same – I always ask our team to be conservative with any thunderstorm forecast, but even with a conservative approach it’s still quite often hit and miss.  Auckland has some big hills around us – Bombays to the south, Waitakeres to the north and north west and Coromandel to the east….so thunderstorms don’t often smoothly move towards us, as they do in Taranaki.

We will see!

Philip Duncan

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