Polar Outbreak starting 07/06/2008

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TonyT
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Re: Polar Outbreak starting 07/06/2008

Unread post by TonyT »

Manukau heads observer wrote:
Tony - 10:1 would equate to 20cm of snow from 20 mm rain...
thats the way I take it works too :mrgreen:
:oops:
You are right of course. Never trust a weather forecaster... :P

I'm up to 15.5mm of melted snow now (temps only 6 deg so its melting rather slowly).
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Re: Polar Outbreak starting 07/06/2008

Unread post by gllitz »

Many thanks for the explanation, TonyT...another tool to put in the toolbox and lesson learned.
Cheers,
Glenn
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Re: Polar Outbreak starting 07/06/2008

Unread post by Janos »

We seem to be having some pretty severe gales at the moment....and the temps are up around 12.4deg..all snow that fell has pretty well gone now.
Berkshire North of Te Anau west of Hokitika.
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Re: Polar Outbreak starting 07/06/2008

Unread post by Janos »

I missed the issue wind warnings ....they certainly are spectacular gusts..
STRONG WIND WARNING
AREA/S AFFECTED: EXPOSED COASTAL AREAS FROM STEAWRT ISLAND TO THE OTAGO PENINSULA. In the 12 to 15 hours from about 2pm Sunday southwesterlies are expected to reach severe gale at times with gusts about 120 km/h.
Berkshire North of Te Anau west of Hokitika.
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Re: Polar Outbreak starting 07/06/2008

Unread post by Razor »

lovely calm sunny winters day in ChCh
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Re: Polar Outbreak starting 07/06/2008

Unread post by Chris Raine »

Strong westerly at Thornbury now , averaging 30 kts ,gusting higher ,only light showers though temp 12 .0 degrees
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Re: Polar Outbreak starting 07/06/2008

Unread post by Storm Struck »

Razor wrote:lovely calm sunny winters day in ChCh
Thats about to change looks like cloud cover moving in from the south nothing precipitive though.
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Re: Polar Outbreak starting 07/06/2008

Unread post by Manukau heads obs »

wow!
gusts to 86 kts at Tairoa head
http://www.portotago.co.nz/12/3.html
Image
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Re: Polar Outbreak starting 07/06/2008

Unread post by Ryan Thomas »

Anyone get any good pictures of the port hills in the morning? Most of the snow was melted when I had a look at 2:30pm or so.. Theres a good one on Jeffs site, wondering if theres more tho
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Re: Polar Outbreak starting 07/06/2008

Unread post by mikestormchaser »

I went up on the port hills after lunch, alot of the snow was melted as you say Ryan however had to take it easy going up there as alot of snow was still on the road side and quite abit of ice and grit around.
appeared to me to be about 3cm of snow when i went up pretty much right at top where suger loaf is and the tv tower.
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Re: Polar Outbreak starting 07/06/2008

Unread post by gllitz »

This will *probably* be the last post for this thread for me, but there were some interesting reads in today's Press about the snowfall over the weekend...one of the articles was about how the M/S got a wee bit jittery as the front was passing...basically, the barometer wasn't going up at all and they were beginning to wonder if a low wasn't trying to form off the Canty coast...THAT would have given us a REAL dumping...they also mentioned what Jasestrm had mentioned on FRI night...about the moisture coming in from that Low off the east Aussie coast with all the cold air being pulled up from the South...the ingredients were there for an even bigger snow fall for the SI, they just didn't get mixed in the bowl very well...'til next time :-)

Cheers,
Glenn
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Re: Polar Outbreak starting 07/06/2008

Unread post by NZstorm »

Yes, I thought the Met Service were brave to lift the snow warnings when they did.

The moisture from this system came in from the southern oceans. To get moisture from the north you will need a weather system to come in from the north and basically be undercut by colder air from the south. This is what we call warm advective snow. It doesn't happen much but 2006 was good example of it. Because you have the energy of a warm lattitude system the snow is very heavy. Warm advective snow storms happen a lot in USA. It can happen over the central North Island too.
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Re: Polar Outbreak starting 07/06/2008

Unread post by mikestormchaser »

gllitz wrote:This will *probably* be the last post for this thread for me, but there were some interesting reads in today's Press about the snowfall over the weekend...one of the articles was about how the M/S got a wee bit jittery as the front was passing...basically, the barometer wasn't going up at all and they were beginning to wonder if a low wasn't trying to form off the Canty coast...THAT would have given us a REAL dumping...they also mentioned what Jasestrm had mentioned on FRI night...about the moisture coming in from that Low off the east Aussie coast with all the cold air being pulled up from the South...the ingredients were there for an even bigger snow fall for the SI, they just didn't get mixed in the bowl very well...'til next time :-)

Cheers,
Glenn
wow interesting, i didn't get the press today but would have liked to for the reasons of seeing what had of been written in the paper and any photos that may have been there to.
Mike
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