Major Low Pressure system - 8th to 12th May

Archive of NZ Weather & Climate
Forum rules
These topics are a read-only archive and may be subject to out-of-date information.

For today's weather discussion head to: New Zealand Weather & Climate
Andrew Massie
Posts: 1032
Joined: Fri 10/03/2006 14:03

Re: Major Low Pressure system - 8th to 12th May

Unread post by Andrew Massie »

Get a room you guys. Seriously.
User avatar
NZstorm
Posts: 11333
Joined: Mon 10/03/2003 19:38
Location: Grey Lynn, Auckland

Re: Major Low Pressure system - 8th to 12th May

Unread post by NZstorm »

Yes, saw the snow on TV last night. Straith Taieri got a good dumping. That region is fully exposed to the southerly flows. Big big fall for mid May.

Grey overcast morning in Auckland with frequent shower activity. I think a front was slow moving across the area.
Temperature only 11C! Too cool for any interesting weather. The GFS forecast I posted above was based on surface temps of 14-15C occuring.
melja
Posts: 2202
Joined: Sun 11/06/2006 20:57
Location: Waikawa, Picton

Re: Major Low Pressure system - 8th to 12th May

Unread post by melja »

southernthrash wrote:Looks like the central MacKenzie was the only area of high country to escape this one then. Although Roundhill in the Two Thumb Range (right by Lake Tekapo) has copped a fair bit. Good snowfall down to the valley floor at Mt Cook. Snow down to 3-400m here in Dunedin, looks to be very heavy up Flagstaff.

Mt Hutt now have well in excess of a metre of snow on the ground. Southern Lakes fields have recieved 30 - 50 cm from this system at this stage.

Saturday is looking interesting (although a long way out), for a much heavier fall in the Central/Western Alps and Fiordland.

As far as I have heard, up to 10 cm down to 100 or so metres in Southland. Will have more details by the end of the day.

I thought Gary wasn't coming back? haha

No signs of a real nor'wester for a while... no doubt we will see one at some stage.
I think you will find there is a good old NW blow coming at the end of the week, 2 or 3 days .
Razor
Moderator
Posts: 5354
Joined: Fri 10/02/2006 15:14
Location: Halswell, Christchurch

Re: Major Low Pressure system - 8th to 12th May

Unread post by Razor »

Well I found PLENTY of snow this weekend from the Routeburn to Kakanui
You do not have the required permissions to view the files attached to this post.
Christchurch Rocks
User avatar
NZstorm
Posts: 11333
Joined: Mon 10/03/2003 19:38
Location: Grey Lynn, Auckland

Re: Major Low Pressure system - 8th to 12th May

Unread post by NZstorm »

Todays Auckland sounding. NZWP00Z. Surface temp for this was 12.1C.

There has been a lot of lightning in the Bay of Plenty last couple of hrs.
You do not have the required permissions to view the files attached to this post.
User avatar
NZstorm
Posts: 11333
Joined: Mon 10/03/2003 19:38
Location: Grey Lynn, Auckland

Re: Major Low Pressure system - 8th to 12th May

Unread post by NZstorm »

Great photos Razor.
Philip Duncan
Posts: 519
Joined: Mon 27/08/2007 21:02
Location: Waitakere City

Re: Major Low Pressure system - 8th to 12th May

Unread post by Philip Duncan »

Huge hail storm in Papamoa today - also reports of water spouts in the area plus another photo from the NZ Herald of a funnel cloud at Shelly Beach north of Auckland.

http://www.weatherwatch.co.nz/content/h ... bay-plenty
southernthrash
Posts: 339
Joined: Sun 12/08/2007 15:48
Location: Invercargill / Dunedin / Queenstown

Re: Major Low Pressure system - 8th to 12th May

Unread post by southernthrash »

melja wrote:
southernthrash wrote:Looks like the central MacKenzie was the only area of high country to escape this one then. Although Roundhill in the Two Thumb Range (right by Lake Tekapo) has copped a fair bit. Good snowfall down to the valley floor at Mt Cook. Snow down to 3-400m here in Dunedin, looks to be very heavy up Flagstaff.

Mt Hutt now have well in excess of a metre of snow on the ground. Southern Lakes fields have recieved 30 - 50 cm from this system at this stage.

Saturday is looking interesting (although a long way out), for a much heavier fall in the Central/Western Alps and Fiordland.

As far as I have heard, up to 10 cm down to 100 or so metres in Southland. Will have more details by the end of the day.

I thought Gary wasn't coming back? haha

No signs of a real nor'wester for a while... no doubt we will see one at some stage.
I think you will find there is a good old NW blow coming at the end of the week, 2 or 3 days .
More of a disturbed westerly flow. Not looking like a big foehn generator at this stage (relatively speaking), and fairly shortlived before the 540 line crawls northward once more - will be a much higher precipitation event...
User avatar
Storm Struck
Posts: 4996
Joined: Wed 17/11/2004 21:25
Location: Belfast Christchurch

Re: Major Low Pressure system - 8th to 12th May

Unread post by Storm Struck »

Incrediable photo's on weather watch site thats alot of hail on the ground looks like snow, and to last more than 40 minutes thats crazy longest hailstorm here ever was probly 15 minutes.
Insurance claims will be up from that storm for sure, with hail that large it wouldnt surprise me if there was a tornado somewhere hence the waterspouts offshore.

Back down here its a clear calm sunny day, just goes to show what happens when the low drags the isobaric flow away from Canterbury.
Still its not finished with us yet as it will take a few more swipes as it gets shoved ahead of the next deep low system in the Tasman.
So still some showers maybe hail tomorrow and wednesday with snow showers to around 300-400m, and perhaps stronger winds too.
Thursdays first attempt at heavy rain through the west coast and alps might bring the snow levels down through there just because it will be so cold with the snow around.
Cheers
Jason.
Canterbury, home of good rugby and severe storms
User avatar
Tornado Tim
Moderator
Posts: 4920
Joined: Sun 19/10/2008 17:17
Location: Raglan, Waikato / Hillcrest, Hamilton

Re: Major Low Pressure system - 8th to 12th May

Unread post by Tornado Tim »

That must have been a pretty intense CB to make that amount of hail!
Baro at 990.2mb and dropping, the low must be centralizing it self over the NI now
NZAPStrike.net - NZ Aus Pacific Strike Network
User avatar
CHCH Weather Chaser
Posts: 3460
Joined: Thu 26/06/2008 16:10
Location: Halswell / Hoon Hay Christchurch

Re: Major Low Pressure system - 8th to 12th May

Unread post by CHCH Weather Chaser »

My thoughts exactly Jason. Metservice interestingly do not even have the risk of a shower for the Canterbury region at the moment, maps and models definately suggest showery weather for Tuesday and Wednesday. Very good blanket on MT herbert (the one u can see out the back of the port hills) its not just a dusting its a thick coating on that bit.
Reporting Live from Southern Christchurch
Leighton Thomas

2014 Rainfall: Jan: 21mm Feb: 76mm March: 170mm April: 201mm YTD: 468mm
mattyj46
Posts: 323
Joined: Mon 21/07/2008 16:33
Location: Brisbane, Australia, from Invercargill, New Zealan

Re: Major Low Pressure system - 8th to 12th May

Unread post by mattyj46 »

Very nice looking Waterspout on Weatherwatch.co.nz
User avatar
Vertigo
Posts: 1185
Joined: Sun 09/12/2007 23:50
Location: Henderson, Auckland

Re: Major Low Pressure system - 8th to 12th May

Unread post by Vertigo »

http://www.nzherald.co.nz/nz/news/artic ... d=10571661

thats a major tornado. good thing it stayed out to sea!
RWood
Posts: 3745
Joined: Sat 24/01/2004 16:56
Location: Wellington

Re: Major Low Pressure system - 8th to 12th May

Unread post by RWood »

waterboy wrote:LOL no not Gary.

What the thing is that when you grow up with the snow you know what a pain it is. Only the townies who come and play in it for a few days think its wonderful. They dont have to live with it and drive through it and track it through the house. To the townies it is oh so lovelyand magical but to us people who are born and bred with the stuff it is just a bloody nusance. :B

Ha ha - you can always tell who the townie snow tourists are. They are the people who drive around with snow on there cars and camper vans because they think it makes them look like mountain men!! The rest of us clean it off our cars first before we drive them! :lol:
If you've lived in cities where winter snow is a regular event, the novelty wears off very quickly. Tekapo is in a beautiful region, and I'd like to be able to spend a lot more time there, but I could skip the snowiest days.
Manukau heads obs
Posts: 12305
Joined: Mon 10/03/2003 16:30
Location: West Coast Road, Manukau Peninsula, North Island

Re: Major Low Pressure system - 8th to 12th May

Unread post by Manukau heads obs »

amazing stuff!, re Papamoa
something big had to happen , there was alot of potential there!
very nice circulation of the low centre showing up on the NP rain radar!
Image
Brian Hamilton, weather enthusiast. My weather dataEmail: [email protected]
User avatar
Nev
Moderator
Posts: 6332
Joined: Tue 07/03/2006 15:24
Location: Waiheke Island, Hauraki Gulf

Re: Major Low Pressure system - 8th to 12th May

Unread post by Nev »

Also a pic of the Warkworth tornado at about 1pm today - 'Tornado sweeps through Warkworth'.

And more updated info in this story - 'Wild weather hits North'.
User avatar
Tornado Tim
Moderator
Posts: 4920
Joined: Sun 19/10/2008 17:17
Location: Raglan, Waikato / Hillcrest, Hamilton

Re: Major Low Pressure system - 8th to 12th May

Unread post by Tornado Tim »

The news at 4.30 called it a "Mini Tornado" Can the metservice please tell the media not call it that...
NZAPStrike.net - NZ Aus Pacific Strike Network
User avatar
David
Posts: 7636
Joined: Sat 18/08/2007 21:02
Location: Howick, Auckland

Re: Major Low Pressure system - 8th to 12th May

Unread post by David »

Again, an uninteresting fairly cool day with some showers. 3.5mm at home since 8am but I think there would have been more than that at uni (in the city) today. High here was 13.6°
Image
User avatar
NZstorm
Posts: 11333
Joined: Mon 10/03/2003 19:38
Location: Grey Lynn, Auckland

Re: Major Low Pressure system - 8th to 12th May

Unread post by NZstorm »

The dynamics were there today, pity Auckland missed out. I knew somewhere was going to get hit but its difficult to say where in advance. I notice a new thunderstorm has developed over western BOP last hr. Great links Philip and Nev. And well done to the Met Service for forecasting the tornadoes.
Philip Duncan
Posts: 519
Joined: Mon 27/08/2007 21:02
Location: Waitakere City

Re: Major Low Pressure system - 8th to 12th May

Unread post by Philip Duncan »

Thanks Steven, one of the busiest days I've ever had - so many amazing photos sent in to us. That waterspout is amazing!

I also noticed that secondary wave moving through western BoP and also a heavy band of rain towards Whakatane. That blob north west of Auckland may well give Aucklanders a taste (finally) of this system. But as all of us Aucklanders know, anything can happen between there and here!
jamie
Posts: 5907
Joined: Fri 25/02/2011 21:35
Location: Hamilton NZ

Re: Major Low Pressure system - 8th to 12th May

Unread post by jamie »

ahhhhhh they arent mini [-X :mad: :x !!!!!!! that one north of auckland they are calling mini is a good sized tornado!!!
How about those water spouts? totaly huge and amazing. i noticed the lightning trackers going nuts on the BOP but didnt realise that was happening. crazy stuff and amazing pictures.
NZ Thunderstorm Soc
Posts: 18913
Joined: Wed 12/03/2003 22:08
Location: Raukapuka Geraldine

Re: Major Low Pressure system - 8th to 12th May

Unread post by NZ Thunderstorm Soc »

Should be a good frost overnight, down to 1.1C at 6pm.

JohnGaul
NZThS
JohnGaul
NZThS
Myself
Posts: 396
Joined: Wed 20/02/2008 21:55
Location: Welly

Re: Major Low Pressure system - 8th to 12th May

Unread post by Myself »

waterboy wrote: What the thing is that when you grow up with the snow you know what a pain it is. Only the townies who come and play in it for a few days think its wonderful. They dont have to live with it and drive through it and track it through the house. To the townies it is oh so lovelyand magical but to us people who are born and bred with the stuff it is just a bloody nusance. :B

Ha ha - you can always tell who the townie snow tourists are. They are the people who drive around with snow on there cars and camper vans because they think it makes them look like mountain men!! The rest of us clean it off our cars first before we drive them! :lol:
Jeez, you're in New Zealand, you make it sound like Canada. Even though you may be in the High Country, it really isn't that much of a snowy place.
Manukau heads obs
Posts: 12305
Joined: Mon 10/03/2003 16:30
Location: West Coast Road, Manukau Peninsula, North Island

Re: Major Low Pressure system - 8th to 12th May

Unread post by Manukau heads obs »

looking at the different photos of the waterspout of papamoa, I would say it has to rate as one of the strongest /largest seen in NZ?
Image
Brian Hamilton, weather enthusiast. My weather dataEmail: [email protected]
User avatar
Vertigo
Posts: 1185
Joined: Sun 09/12/2007 23:50
Location: Henderson, Auckland

Re: Major Low Pressure system - 8th to 12th May

Unread post by Vertigo »

agreed brian - it was massive!