Major Low Pressure system - 8th to 12th May

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

Unread post by Philip Duncan »

Was very cool Nev - I thought it was an air force plane from Whenuapai then as it moved closer it was clearly a triple 7. Big chunky CBs still around the city tonight... must be fun for the pilots!
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Re: Major Low Pressure system - 8th to 12th May

Unread post by NZstorm »

The cb's also have intense turbulence and icing for aircraft.

Front looks like its taking shape out in the Tassie, nice crop of cbs building. :smile:
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Re: Major Low Pressure system - 8th to 12th May

Unread post by Willoughby »

Myself wrote: I wonder how much it costs to get all the output from something like the ECMWF?
I have a feeling one can't privately 'buy' the data but is available to researchers for free use... and then obviously all the WMO members that would get all the data as contracted with the data-sharing they do. I agree with what you say regarding the GFS, but it's not that bad... Sure, it can be very shoddy with regard to progging sub-tropical lows over the North of NZ but can be excellent for progging cold outbreaks. It's not the worst, have you seen the outputs from BoM's GASP? That will make you constantly go ' 0_o '. :lol:

Here's a good animation from today's 00Z ECMWF run which is currently available (for a limited time with rainfall), shows the revolving motion of the low very nicely... here
Razor wrote: Haha its a heatwave!
Would be 60C at ground level! :lol:

Great pics gentlemen! :smile:
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Re: Major Low Pressure system - 8th to 12th May

Unread post by waterboy »

Hi. The generation controller has told me that the Met services has cancelled there snow warning for down here. So much for the polar blast!!!
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Re: Major Low Pressure system - 8th to 12th May

Unread post by Dale »

j--me--h wrote:off topic did anyone see that jet flying around the city 15mins ago... was very low and noisy as hell. looked like it flew right over towers in the city at one point.. i think it was a fighter jet but didnt thnk NZ had any????
Looking at your time of post, not sure but a bizjet came over about an hour before at radar lowest safe & he was fair hauling ass towards papakura, skirting abound a Cb on a long final to 23L.. thought myself for a moment it was a fighter of some sort. Also witnessed a Cathay Pacific A340 doing some amazing tricks on departure through the much photographed cell just after 4pm.. them guys up front sure have some balls!

Wx wise, not much to report here.. frequent blustery showers with the odd splashing of hail.. the 4 legged friends have been drenched, timber stacked, just awaiting the fun this weekend o_O :B
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Re: Major Low Pressure system - 8th to 12th May

Unread post by DT-NZ »

Well gentlemen ( and ladies out there who maybe reading the weather forum )

Great picture's everyone... thank's for posting them, they are great visual's to see what's happening around the country, loved looking at the whole lot of them... UNFORTUNATELY... while everyone got to hear thunder in their repective part of the country, there was none of that here in the DB area... >_< hmm...

Have a safe evening if your out there on those roads travelling... keep warm... take care.
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Re: Major Low Pressure system - 8th to 12th May

Unread post by Tornado Tim »

Nev wrote:lol, think you mean the doppler is mounted in the nose Tim. Yes, what they're primarily looking for are microburts. The doppler should give them just enough time to take evasive action, which sounds like what Phil described.
I meant to say the screen in the cockpit, lol
Tomorrow is going to be very interesting....
I bet this forum will be on fire!! :nuke:
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Re: Major Low Pressure system - 8th to 12th May

Unread post by NZ Thunderstorm Soc »

Some distant sferics heard from here this evening, must be over there on 'The Coast' :cute:

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

Unread post by NZ Thunderstorm Soc »

Tornado Tim wrote: Tomorrow is going to be very interesting....
I bet this forum will be on fire!! :nuke:
What's the bet that this could be the biggest topic, so far??? =;

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

Unread post by jamie »

Dale Small wrote:
j--me--h wrote:off topic did anyone see that jet flying around the city 15mins ago... was very low and noisy as hell. looked like it flew right over towers in the city at one point.. i think it was a fighter jet but didnt thnk NZ had any????
Looking at your time of post, not sure but a bizjet came over about an hour before at radar lowest safe & he was fair hauling ass towards papakura, skirting abound a Cb on a long final to 23L.. thought myself for a moment it was a fighter of some sort. Also witnessed a Cathay Pacific A340 doing some amazing tricks on departure through the much photographed cell just after 4pm.. them guys up front sure have some balls!

Wx wise, not much to report here.. frequent blustery showers with the odd splashing of hail.. the 4 legged friends have been drenched, timber stacked, just awaiting the fun this weekend o_O :B
Ill try and describe it... It didnt have engines mounted to the wings that i could see. Was moving very very quickly and i watched it fly in no real direction all over the show for about 20 mins. Was black and narrow and rather small. At one stage it flew directly at the sky tower then suddenly veered off.
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Re: Major Low Pressure system - 8th to 12th May

Unread post by melja »

NZ Thunderstorm Soc wrote:
Tornado Tim wrote: Tomorrow is going to be very interesting....
I bet this forum will be on fire!! :nuke:
What's the bet that this could be the biggest topic, so far??? =;

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

Unread post by waterboy »

melja wrote:
Yeah with the most disappointed people :-w :-$
Ha ha!! Yes the Met Service has cancelled the show! Go back to yours televisions! :lol:
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Re: Major Low Pressure system - 8th to 12th May

Unread post by Dale »

Sounds like the same bizjet J-Meh.. tail mounted engines, small, sleek, loud as f%#@ and very fast.
Night night :)
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Re: Major Low Pressure system - 8th to 12th May

Unread post by NZ Thunderstorm Soc »

There was an intersting article in today's Christchurch PRESS in the Discovery section titled "Tracker the Twisters" about scientific research into the tracking of tornadoes in the USA.

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

Unread post by Manukau heads obs »

wow, that approaching front is a doozie!
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Re: Major Low Pressure system - 8th to 12th May

Unread post by Tornado Tim »

The Lightning Radar is going Nuts!
Rain radar show moderate rain atm as well in localized spots probably associated with the CB's.
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Re: Major Low Pressure system - 8th to 12th May

Unread post by spwill »

Yes, a lightning active Front out there.
You can see the overnight storm development on the Front here.
http://wwlln.net/WWLLN_movies/Movie_of_ ... an_BIG.gif
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Re: Major Low Pressure system - 8th to 12th May

Unread post by Manukau heads obs »

my boltec is not working at the moment because my weather pc died on me
and I am now using my Mac mini as a weather pc (running WD for the Mac)
So I need to get the usb version of the boltec (and get that to work on the mac) and sell my PCI version....someone here might like to purchase it?
:)
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Re: Major Low Pressure system - 8th to 12th May

Unread post by NZstorm »

Its a pity this front wasn't coming through in the afternoon when the airmass over land was a bit more unstable.
I can see the cb line out to sea from here.
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Re: Major Low Pressure system - 8th to 12th May

Unread post by melja »

Well i dont know what you guys in canterbury are thinking but i just cant see were we are going to get all this "BIG BAD STORM" weather from, way to warm for snow,very showery so not much rain.
I do hope that people dont get to disappointed [-X but just remember this happens so often here in canterbury in winter-just remember what a SW wind does here _b
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Re: Major Low Pressure system - 8th to 12th May

Unread post by Manukau heads obs »

the rain radar shows the front is coming in fast....much faster than the models showed yesterday (by 6 hours)
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Re: Major Low Pressure system - 8th to 12th May

Unread post by Tornado Tim »

Yea front is dumping heaps of rain over Hamilton now.
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Re: Major Low Pressure system - 8th to 12th May

Unread post by Razor »

Is certainly looking like a fizzer for the south island...nothing but a normal early winter southerly spell.
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Re: Major Low Pressure system - 8th to 12th May

Unread post by tgsnoopy »

Darn, I have a commitment at 9am.

I'd like to watch this one come in.

May get a gap from about 10 till 1, fingers crossed.
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Re: Major Low Pressure system - 8th to 12th May

Unread post by KiwiWeather »

Hi Ya Snoopy.

I've got the day off for this one :)
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