Tasman Low / Active Front(s) - Sep 11-15

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Manukau heads obs
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Re: Tasman Low / Active Front(s) - Sep 11-14

Unread post by Manukau heads obs »

looked like a good hail storm alright from the pictures from the news
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NZstorm
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Re: Tasman Low / Active Front(s) - Sep 11-14

Unread post by NZstorm »

Looks like the next major impulse in the w flow crosses the North Island Thursday pm. Can Auckland get thunderstorm out of it? I think Taranaki definitely will but not sure about Auckland. Have to see how the next few gfs runs shape up. Would be nice to get a hail storm like Wellington got!
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Re: Tasman Low / Active Front(s) - Sep 11-14

Unread post by Manukau heads obs »

wind stating to crank up a notch and go more westerly here now
as predicted...
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Michael
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Re: Tasman Low / Active Front(s) - Sep 11-14

Unread post by Michael »

My wind has dropped here,(still a breeze) whistling/banging has stopped which yesterday occured.
Manukau heads obs wrote:wind stating to crank up a notch and go more westerly here now
as predicted...
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Re: Tasman Low / Active Front(s) - Sep 11-15

Unread post by Manukau heads obs »

report of a tornado near Gisborne yesterday
probably that same thunderstorm line that wellington got?
http://www.nzherald.co.nz/nz/news/artic ... d=10751686
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Re: Tasman Low / Active Front(s) - Sep 11-15

Unread post by Nev »

^ Interesting. Amazing damage pics!

Probably not quite the right thread, but a nice photo of a funnel-cloud taken last Wednesday in Matakohe in the N Kiapara area has also just been published...

'Just a baby twister' - Dargaville News
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Re: Tasman Low / Active Front(s) - Sep 11-15

Unread post by spwill »

Nev wrote:^
Probably not quite the right thread, but a nice photo of a funnel-cloud taken last Wednesday in Matakohe in the N Kiapara area has also just been published...

'Just a baby twister' - Dargaville News
Nice photo, a fair weather funnel cloud. I recall we had sea breeze convergence across Auckland /Northland last Wednesday but cloud tops were shallow under a ridge.
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Re: Tasman Low / Active Front(s) - Sep 11-15

Unread post by 03Stormchaser »

Yes nice damage photos, another F0?
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Re: Tasman Low / Active Front(s) - Sep 11-15

Unread post by Richard »

Must say a funnel-cloud is something ive never seen :-k

Neat photo Nev _b
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Re: Tasman Low / Active Front(s) - Sep 11-15

Unread post by NZstorm »

A very atypical tornado, there must have been some mesoscale wind effects going on in the valley where it occurred!
Looks F1.
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Re: Tasman Low / Active Front(s) - Sep 11-15

Unread post by Nev »

The reported hail would most likely have been from the small intense red spot on the left hand side of this cell (centre of image), with said 'tornado' following right behind...
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Re: Tasman Low / Active Front(s) - Sep 11-15

Unread post by NZstorm »

The Gisborne tornado looks like a case of some local NW flow feeding into a storm which formed on the cold front. The upper flow was SW so the undercutting NW flow would have generated the helicty. Also other factors such as the SE change providing the convergence along the front and an upper level SW jet stream enhancing lift over the area assisted the cb development. One of the more unusual tornadoes scenarios you will see. Seems to be a winter for tornadoes.
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Re: Tasman Low / Active Front(s) - Sep 11-15

Unread post by Tornado Tim »

Cold front sparking just north of New Plymouth atm, activity has weakened a bit though....
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Tornado Tim
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Re: Tasman Low / Active Front(s) - Sep 11-15

Unread post by Tornado Tim »

Cold front hit well here, with some small hail :)

Classic Baro spike too
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Re: Tasman Low / Active Front(s) - Sep 11-15

Unread post by jamie »

I was in Stratford and left just after 2pm. I followed the front all the way from there to Hamilton. Saw lightning, heard thunder, saw flash flooding, torrential rain.
Fantastic couple of hours. cant believe how well it worked out for me.
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