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Another low on the horizon

New Zealanders have barely had time to appreciate that a high is rolling in for the rest of this week – let alone having to get their heads around another incoming low, but it is winter afterall.

A ridge of high pressure will push into many parts of the country over the coming days, especially the North Island. Westerlies are likely to form on the southern fringes of his high, which means eastern parts of the South Island should enjoy warmer and sunnier weather compared to the past 48 hours.

However a short, sharp, front over Tasmania later this week will likely help spawn a new low in the Tasman Sea this weekend. 

“This is what we mean when we say we have a ‘choatic’ weather pattern this winter – we can get the big southerlies but also big warm, wet, lows” says head weather analyst Philip Duncan.  “

“This low will bring warmer – but strong – nor’west winds to some central and eastern parts of the country by Sunday. By early next week North Islanders especially will be asking ‘what cold snap?’ as the warmer north west flow sets in. says that Hawkes Bay, which stuggled to reach double digits on Monday, could be back to the mid-teens as soon as this Thursday.

“In true chaotic fashion the wintry weather today will give way to warmer weather later this week and early next week, then again gives way to yet another cold south west change late next week.”.

Mr Duncan believes July’s mix of warm and cold weather events will continue into August.  “Some winters we have weeks of mainly one wind direction, but this winter has been very mixed up with warm northerly rain events and rough southerly blasts”.

– Image / This coming Sunday’s rain map shows a large low in the Tasman Sea / Weathermap




Guest on 18/07/2013 7:30am

Hi there Weather Watch
Is there looking like snow for next week/ next weekend for Canterbury (400m above). Cheers for this and I understand its difficult to forecast this far ahead.

WW Forecast Team on 18/07/2013 7:18pm

Hi there

Not sure at this stage, as you say it is a while out. Check back as we bring out further updates 🙂


Guest on 17/07/2013 12:19am

Just looking at this is, it looking like snow for Canterbury high country over this weekend/early next week.

WW Forecast Team on 17/07/2013 1:58am

Hi there – no it’s looking quite mild this weekend and early next week. Highs between 16 and 18 degrees possible in Canterbury.  But much colder by the end of next week – so could be a chance then.



Guest on 16/07/2013 2:24am

Hey phil?

Was just wondering looking ahead it looks like we could have 2 cold snaps in last week of july do u agree??

WW Forecast Team on 16/07/2013 5:15am

Hi there – thanks for the question,

It’s still a bit too far out to see, it may likely all merge as one.  Keep an eye on the Maps over the next two more days, also we’ll be updating in more detail about this probably on Friday or over the weekend once we know more.  


sw on 15/07/2013 9:56pm

Hasnt been much northerly this winter here in Auckland,been westerlies,SW or southerlies.

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