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Maps of large Southern Ocean storm

A collection of maps that show the size of the storm near New Zealand.

Plus, a map which clearly shows why the air is going to become so cold in the lower South Island on Friday night/Saturday.

This map shows the top half of the low (where the time stamp is). The isobars from left to right are about the same width as Australia.  Map /

Isobaric map / GrADS, COLA/IGES

This map looks directly down onto Antarctic.  NZ is at the top hidden under a line of numbers.  This shows the isobars this Saturday feeding air from over the Antarctic ice shelf and onto Southland.

Have you seen other maps/images of the storm?  If so – share the link in the comment section below!


Debs on 17/09/2010 3:02am

What a great website! I will add to my faves so I can watch the weather inside and out!

David Barnes on 16/09/2010 9:38pm

The present system over antartica seems to totally encircle the continent,in fact i have never seen it like that , it seems to radiate out from the south pole and was wondering if this is a common occurance?

WW Forecast Team on 16/09/2010 11:43pm

Antarctica is the driest continent on earth.  There is a constant high that sits over the South Pole stopping any moisture from getting in.  The lows circle around it on the fringes between the outer edges and Australia/NZ etc.

– WeatherWatch

Justin on 17/09/2010 2:03am

Where is that ‘constant high over Antarctica’ in the lowermost isobar map above?

WW Forecast Team on 17/09/2010 2:50am

That map isn’t the best map to see it, but it’s really that large area in the middle (it’s not a low).

– WeatherWatch

Sally on 16/09/2010 9:02pm

Go to “Current Marine Data” – bottom rhs, and click on NZ

Guest Safety. on 16/09/2010 7:17pm

Is it safe to travel by car from Taupo to the farNth today pm?. approx 10 hr drive.

WW Forecast Team on 16/09/2010 9:00pm

It will be windy with passing heavy showers/squalls.

The sooner you leave the better – take care.


Guest on 16/09/2010 4:58am

What is it likely to mean for conditions on Whakapapa this weekend and travelling down and getting to lodges at Whakapapa Village?

WW Forecast Team on 16/09/2010 6:08am

MetService says snow likely to 700 metres on Friday night/Saturday morning.  I think gales and snow will affect the mountain.  Roads should be ok getting there and back but windy in exposed places.

– Philip Duncan

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