thunderstorms heading towards the auckland area! (4pm)

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Shepherds Valley WX
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Unread post by Shepherds Valley WX »

Gidday guys,

i was off farm today, but I thought you may be interested in veiwing my Weather Display Screenshot for the day which clearly shows the storm and associated rain event....

I still can't get my WD PC to upload to the net so unfortunately this is as good as I can do for now! :x
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Manukau heads obs
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Unread post by Manukau heads obs »

i thought the upload problem was just that it disconnects after the last file is uploaded, prematurely...but that they do upload?
maybe email me your settings (go aciton, back up registry entry now, and email me the files wdisplayftp.reg from the folder databackup)

looking at the rain radar, the squall line developed over the waipoa forest
Image
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Manukau heads obs
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Unread post by Manukau heads obs »

just some follow up:
I was watching clouds hanging low over the waitakeres , heading towards the beach here (big bay), and real heavy rain associated with it...we had a visitor at the time., and I said, that almost looks like a tornado forming (the waitekeres (this was puponga point) is good at that.,...
and then that visitor promptly left

just had phone call from someone down in big bay (and i also could see lots of lightning strikes there too)
and they said they could see a huge wall of white rain coming, then really strong winds!
(we did not get the wind here, but boy the clouds were moving fast above us!
Image
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GraemeWi
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Unread post by GraemeWi »

Manukau heads observer wrote:....and they said they could see a huge wall of white rain coming, then really strong winds!
(we did not get the wind here, but boy the clouds were moving fast above us!
Image

We had a white wall of rain here as well - in the pic above normally you can see Woodhill in the background.

Here's to another few storms like that!

Cheers,

G
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NZstorm
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Unread post by NZstorm »

Nice photos Greame,
Yesterday afternoon's storm approached central Auckland with quite a nice gust front, wish I had had my camera with me. The deluge was welcome for the garden, the ground just starting to dry out. November has been a dry month.

I don't have a home PC at the moment.
C-Nimbus
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Unread post by C-Nimbus »

NZstorm wrote:Nice photos Greame,
Yesterday afternoon's storm approached central Auckland with quite a nice gust front, wish I had had my camera with me. The deluge was welcome for the garden, the ground just starting to dry out. November has been a dry month.

I don't have a home PC at the moment.
with relation to a gust front NZstorm, what is your understanding of what they are and what are the conditions needed for them to form? Are they particular to a type of thunderstorm?. Any help would be appreciated.

cheers

:lol:
GraemeWi
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Unread post by GraemeWi »

The trough approaching from the west isn't too far away, hopefully some afternoon heating will happen before it arrives. There are some lumps showing about 50km out to sea on the 1pm radar. Also a good convection warning for tomorrow afternoon for nearly the whole of the north island 8)

Cheers,

G
Manukau heads obs
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Unread post by Manukau heads obs »

bascily there was a heck alot of updrafts , and what goes up must come down.....and where it comes down you get big squalls/downbursts, etc
the interesting thing was that front was a real slider.....NE wind in front, N wind behind, upper NW flow.....i.e the embeded cb's were moving along the front (NNW to SSE)
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ricky
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Unread post by ricky »

Can see the gust front hit on the weatherstation graph from here in grey lynn..

with the typical Jump in windpeed, Drop in temp and DP, heavy rain and that lift in Barometric pressure that seems to accompany these events...
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Manukau heads obs
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Unread post by Manukau heads obs »

could be more interesting weather coming by the looks.....the jet stream is doing a big dive down then up and then down again over us, going around the big slow moving high south of australia.....and there is a new low moving out of the southern ocean now
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Manukau heads obs
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Unread post by Manukau heads obs »

yup, it could be all on again graeme soon! (but the wave low on yesterdays front needs to move a bit futher away maybe?

nz storm, no computer?
do you have the shakes?

actauly, looking at there movement, those cbs are heading your way graeme :)
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Willoughby
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Unread post by Willoughby »

Judging by the 2pm radar, it will only effect the auckland-kaipara reigon, a lighter band behind it should effect us down here :(
Manukau heads obs
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Unread post by Manukau heads obs »

http://www.metservice.co.nz/default/ind ... key=190600
batten down the hatches michael
you dont see a severe gale swer very often
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GraemeWi
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Unread post by GraemeWi »

Foggy Hamilton wrote:Judging by the 2pm radar, it will only effect the auckland-kaipara reigon, a lighter band behind it should effect us down here :(
Is there a more frequent radar available on the net? I've got the 'free' metservice 3 hourly one.

Cheers,

G
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Willoughby
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Unread post by Willoughby »

I've looked everywhere, it seems only the weather channel gets the 15min radar, sometimes TV one show the smooth motion on tv...

Its also strange that SKY update the obs hourly while MetService every 3 hours & radar...

](*,)
Manukau heads obs
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Unread post by Manukau heads obs »

sky weather channel is good for the rain radar...updates every 15 minutes
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Thunder
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Unread post by Thunder »

Australia gets 10 minute radar updates!

I guess it's not in the budget or something for NZ? So they don't provid it freely to the public unless you pay for it via metnet for e.g. It wouldn't really be that much more of an effort to do 10 minute updates would it? The system is allready in place, am I overlooking something??
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Aaron Wilkinson
GraemeWi
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Unread post by GraemeWi »

Aaron J Wilkinson wrote:It wouldn't really be that much more of an effort to do 10 minute updates would it? The system is allready in place, am I overlooking something??
Profit! All Government departments have a balance sheet, and if there is anything they can provide that is worthy of charging for, they will. According to their annual report they received ~$26m from customers.

Cheers,

G
spwill
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Unread post by spwill »

Yes ,a gust Front is caused by descending air out of Cb. I didn't see much of a Gust Front here yesterday but I heard there was a good looking one over the City+lower Northshore area.
Dew points in Auckland today are around 10C, low for the time of the year and not great for Thunderstorms. I see there are a few Lightning strikes well out to Sea. Air will be more unstable tomorrow.
Thunder
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Unread post by Thunder »

That sounds about right.

So.......does anyone think there's a chance of it being avaiable in future to the public?
I guess not if they're earning money for it now, why would they want to get stop that.
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NZstorm
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Unread post by NZstorm »

Yes, gust front is the outflow from an organised cb or a colapsing cb.
As Brian has suggested, what must go up must eventually come down.

I wouldn't expect much more than widely scattered showers today. Dewpoints are a bit low to allow deeper convection today. Tomorrow should be different as the upper air will be colder and more likely to destabilise with surface heating. So a few thunderstorms likely tomorrow more particularly in places were the temps can get up a bit such as inland Waikato.
GraemeWi
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Unread post by GraemeWi »

It's been a very nice day today - for a pic of the Kaipara I took this morning:
http://www.geocaching.com/seek/log.aspx ... ID=5709234

Hopefully something will work out tomorrow - planning a trip through Katikati - Tauranga and back up through the Waikato tomorrow 8) it's great being on holiday!

Cheers,

G
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Unread post by Thunder »

So your the other that knows 'HLD', It's all coming together now. lol.

Metservice has most of the North Island with a moderate risk of storms tomorrow, hopefully you get something guy's.

Ummm, what's moderate risk come to think of it? 40%, 60%? I'm guessing if there's Low risk, Moderate risk and High Risk you'd have to divide it into thirds? So that would be 66.6(alot more 6's then a 7, lol)% ??
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spwill
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Unread post by spwill »

Some Cu and Cb to the North of Auckland this evening, nothing Thundery . I have just taken this photo with a zoom lens.
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03Stormchaser
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Unread post by 03Stormchaser »

GraemeWi wrote:
Is there a more frequent radar available on the net? I've got the 'free' metservice 3 hourly one.

Cheers,

G
metservice do have a free hourly update, but its on vodafone live.
At the moment live is free dont no when that runs out though!
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