Weather Video: Big high for Sunday/Monday, big low again next week

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The large area of low pressure affecting New Zealand's weather all this week will finally drift away from the country on Friday leaving a cooler, windier and showery south to southwesterly nationwide. This will linger into Saturday but fades on Sunday as high pressure moves across the country.

Weather Video: A cooler southerly to flush away the thunderstorms & downpours

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A southerly change is coming but not before more heavy downpours with isolated thunderstorms sweep over the upper and western North Island.

More downpours will continue over Wednesday PM and Thursday AM, some may have hail and thunder - then it eases on Thursday as a windier south to south west change sweeps in.

Downpours & thunder in the north, colder with snow in the south (+5 Maps)

More downpours, isolated thunderstorms and even hail are forecast for the upper North Island of New Zealand as a large scale low pressure system continues to very slowly cross over the country for Wednesday and Thursday.

Weather Video: Tornados hit the North Island, more instability coming Wednesday

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Monday saw a couple of tornados and waterspouts around the North Island causing damage in both Taranaki & BOP. We take a look at what happened, why it happened and what the risks are for further potential thunderstorms and isolated tornado risks.

Thunderstorms, heavy downpours - more isolated rough weather coming (+6 Maps)

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New Zealand remains under a deep low pressure system providing unstable conditions leading to isolated thunderstorms, heavy downpours and isolated tornados.

Large area of low pressure now beginning slow track over NZ (+5 Maps)

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A big area of low pressure in the Tasman Sea is starting to move on to New Zealand and will take until Friday to finally move away.

Weather Video: Low pressure system to take until Friday to cross NZ

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A large slow moving low is about to move across New Zealand, taking the entire working week to do so. Rain spreads across western areas of both islands today while eastern areas remaining mostly dry.

Sunday's national forecast (+InfoGraphic)

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After a cold start for many Sunday looks like a great day across many regions with plenty of sunshine. Clouds will build for some later in the day, especially in the west and maybe the very north.

Winds look light for many regions but northerly quarter winds will develop around the South Island and Cook Strait into the afternoon, helping lift temperatures after the colder start.

A cold start but Sunday looks good for many! (+2 Maps)

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New Zealand is beginning to enjoy a weekend with settled weather thanks to a high pressure ridge briefly spreading south over the country for most of Sunday.

Colder weather coming, some rain and snow - but not major (+3 Maps)

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A series of several low pressure systems will be tracking through New Zealand in an active pattern into early next week. This will lead to off and on rounds of rain and mountain snow for the country.

Through this weekend up to 50 mm of rain will fall, with the largest totals actually shifting to the eastern side of the country.