Hi all.
For those interested in synoptic weather just noticed a big high well south of New Zealand near the Antarctic coast between 160 and 170 east with a central pressure of 1035hpa, I would suggest that's a near record for that location bearing in mind mean pressure in that area are closer to or less than 1000hpa this time of the year, also suspect some very cold surface air in the vicinity of that big high. Clyve H

Hi Clyve,

I was looking at that myself earlier today and noticed it had been dawdling along down there over the last week. There's a whole 'queue' of polar front depressions lined up but this high has decided to mount a left turn detour sign (gosh the Labor Party's left wing must be in the ascendancy!). I thought I also noticed a suspiciously similar but much less intrusive feature at similar latitudes south of the African continent.

This seems to me to be not unusual for June, to have the polar high bulging north in our longitudes. I often wonder if it has to do with the winter solstice...the air down there is so cold it starts to bubble north, more or less.

Hi Clyve
 
Is that High been at that latitude for some time?
 
There was one at 50 degreees south, more to the west, a week or so ago.
 
Back to my first sentence, I notice reports on TV last night of lots of snow and coldness at relatively low altitudes in and around Queenstown NZ.  I wonder how this is linked to the postition of the strong high, south of NZ.
 
Michael

--- On Fri, 3/7/09, Craig Arthur <wcart...@gmail.com> wrote:

From: Craig Arthur <wcart...@gmail.com>
Subject: [austpacwx] Re: Unusual high...
To: "austpacwx" <austpacwx@googlegroups.com>
Received: Friday, 3 July, 2009, 2:53 PM

See Macquarie Island's radiosonde from this morning:
http://www.bom.gov.au/products/reg/IDS65024/IDS65024.94998.shtml#_bottom
Predominantly *easterly* flow through to 200 hPa!

On Jul 3, 12:31 pm, "Clyve Herbert" <mes...@iprimus.com.au> wrote:

Oops Clyve disregard my question below, sorry didn't read your previous posts on this topic!  Catching up after a couple of days away from the list.

--- On Sat, 4/7/09, Michael King <mski...@yahoo.com.au> wrote:

From: Michael King <mski...@yahoo.com.au>
Subject: [austpacwx] Re: Unusual high...
To: austpacwx@googlegroups.com
Received: Saturday, 4 July, 2009, 12:17 PM

Hi Clyve
 
Is that High been at that latitude for some time?
 
There was one at 50 degreees south, more to the west, a week or so ago.
 
Back to my first sentence, I notice reports on TV last night of lots of snow and coldness at relatively low altitudes in and around Queenstown NZ.  I wonder how this is linked to the postition of the strong high, south of NZ.
 
Michael

--- On Fri, 3/7/09, Craig Arthur <wcart...@gmail.com> wrote:

From: Craig Arthur <wcart...@gmail.com>
Subject: [austpacwx] Re: Unusual high...
To: "austpacwx" <austpacwx@googlegroups.com>
Received: Friday, 3 July, 2009, 2:53 PM

See Macquarie Island's radiosonde from this morning:
http://www.bom.gov.au/products/reg/IDS65024/IDS65024.94998.shtml#_bottom
Predominantly *easterly* flow through to 200 hPa!

On Jul 3, 12:31 pm, "Clyve Herbert" <mes...@iprimus.com.au> wrote:

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Hi Michael.
Yep the Antarctic high has been lurking along polar latitudes for a few days it reached about 1036hpa day before yesterday, there is a strong southeast airstream to its north which eventually feeds into the Pacific near the south island of NZ. This 'polar' high weakened overnight to 1026hpa. Another strong high (1037hpa) is located southeast of Madagascar and is slow moving. This whole set up from Sth Africa to the Pacific appears to be a bit of a synoptic traffic jam....Clyve H

Talking of current synoptic patterns, I noticed some models (the longer range ensembled forecasts) were hinting at yet another somewhat vigorous low moving across the SE Oz area around mid July and a coldish outbreak behind it. Although the probabilities of a really major outbreak appear small atm and being a couple of weeks away, it could be a fizzer.

Ken.

From: mes...@iprimus.com.au
To: austpacwx@googlegroups.com
Subject: [austpacwx] Re: Unusual high...
Date: Sat, 4 Jul 2009 13:56:19 +1000

Hi Michael.
Yep the Antarctic high has been lurking along polar latitudes for a few days it reached about 1036hpa day before yesterday, there is a strong southeast airstream to its north which eventually feeds into the Pacific near the south island of NZ. This 'polar' high weakened overnight to 1026hpa. Another strong high (1037hpa) is located southeast of Madagascar and is slow moving. This whole set up from Sth Africa to the Pacific appears to be a bit of a synoptic traffic jam....Clyve H