Thunderstorm Potential Early Dec 2009 in the North

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Manukau heads obs
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Re: Thunderstorm Potential Early December, 2009

Unread post by Manukau heads obs »

dang, been cooking sausages at school again, have missed the discussion/rain radar maps

there looks to be a warm front and cold frontal line
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Re: Thunderstorm Potential Early December, 2009

Unread post by Vertigo »

yes, seems to have done just that. im hoping its just a temporary set back.
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Re: Thunderstorm Potential Early December, 2009

Unread post by Tornado Tim »

The warning has now been lifted.
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Re: Thunderstorm Potential Early December, 2009

Unread post by Vertigo »

the warning was lifted because the rain radar went offline almost an hour ago. very unfortunate. i think the warning should remain in effect tbh.
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Re: Thunderstorm Potential Early December, 2009

Unread post by spwill »

Observed heavy rain /surface water and thunder just north of Helensville but the line weakened quickly with the cooler surface conditions I guess, there is still some very heavy showers on the line, I see there has been lightning strikes last hr eastern Northland, a warmer day up that way.
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Re: Thunderstorm Potential Early December, 2009

Unread post by Manukau heads obs »

solid rain here at the moment, set in for a while by the looks
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Re: Thunderstorm Potential Early December, 2009

Unread post by Vertigo »

auckland is saturated at this point!

edit: looks like there may be some reorganization as the convergence zones combine
Last edited by Vertigo on Fri 04/12/2009 16:59, edited 1 time in total.
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Re: Thunderstorm Potential Early December, 2009

Unread post by DT-NZ »

I'm on the phone with my daughter from Hukerenui right now as I type this and she wants to say the rains have arrived and also at approx 4.20pm they had thunder and lightning down there way on the farm _b

update: now its pretty much sunny *sigh*
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Manukau heads obs
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Re: Thunderstorm Potential Early December, 2009

Unread post by Manukau heads obs »

i see that, looking at Ricky's data
seems to be coming in waves too
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Re: Thunderstorm Potential Early December, 2009

Unread post by spwill »

A couple of snaps from my afternoon in the country.
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Last edited by spwill on Fri 04/12/2009 17:15, edited 1 time in total.
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Re: Thunderstorm Potential Early December, 2009

Unread post by Michael »

Too cold now for anything to happen now.
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Re: Thunderstorm Potential Early December, 2009

Unread post by C-Nimbus »

Is that a horse-shoe funnel in that image spwill? Or is it just something on the lense?

Its just to the centre-left just under the cloud base
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Re: Thunderstorm Potential Early December, 2009

Unread post by David »

Rain has eased off here, 17mm since midnight, but not much around now. Hopefully will see some of the forecast heavy falls tonight!
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Re: Thunderstorm Potential Early December, 2009

Unread post by NZstorm »

re the Manawatu tornado

Could this have occurred on Wednesday. I have had a flick through the soundings from Paraparam and the the midday sounding for Wednesday looks favorable for severe thunderstorm development. Good instability with good shear. I'm quite convinced the tornado must have occurred on Wednesday, not Tuesday.
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Re: Thunderstorm Potential Early December, 2009

Unread post by Michael »

Tuesday was simply calm and wet there.
NZstorm wrote:re the Manawatu tornado

Could this have occurred on Wednesday. I have had a flick through the soundings from Paraparam and the the midday sounding for Wednesday looks favorable for severe thunderstorm development. Good instability with good shear. I'm quite convinced the tornado must have occurred on Wednesday, not Tuesday.
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Re: Thunderstorm Potential Early December, 2009

Unread post by spwill »

Is that a horse-shoe funnel in that image spwill?
no but I wish I saw the Waiuku landspout yesterday as I was watching the convergence line for a while.

Re the Manawatu Tornado, yes NZstorm active Cb crossed that area Wendsday afternoon.
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Re: Thunderstorm Potential Early December, 2009

Unread post by Manukau heads obs »

no but I wish I saw the Waiuku landspout yesterday as I was watching the convergence line for a while.
same here, in fact the wife got home and was surpised I was not chasing it!
I was on a surfboard at about the time
and could see some great looking cloud lowerings off the coast down that way, and then another one off Piha way that nearly looked like it was going to develop a water spout :)
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Re: Thunderstorm Potential Early December, 2009

Unread post by Lozza »

Just been for a drive around Bethells Beach and roads are covered in water, creeks have burst their banks. A couple of the creeks looks like they'll threaten some houses soon Just saw a guy get his car stuck in some fast flowing water on Bethells Road. Id say they wont be far from closing it. Has been torrential out here for the last 2 hours! Lots of pictures.

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Re: Thunderstorm Potential Early December, 2009

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Re: Thunderstorm Potential Early December, 2009

Unread post by Vertigo »

its STILL raining pretty heavily in penrose. wettest day this year?!
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Re: Thunderstorm Potential Early December, 2009

Unread post by Philip Duncan »

Boy that rain is really heavy again - no end in sight over the next few hours. Would be really keen to hear from anyone who has seen flooding, slips etc. Thanks heaps!
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Re: Thunderstorm Potential Early December, 2009

Unread post by NZstorm »

The online Albany weather station has 72mm now.
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Re: North Island Thunderstorm Potential Early December, 2009

Unread post by NZ Thunderstorm Soc »

Theres been none down here, thunder unlikely. I wish I knew how to change the thread titles, so they suit :x

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Re: Thunderstorm Potential Early December, 2009

Unread post by David »

Still no heavy rain here - very light rain currently.
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Re: Thunderstorm Potential Early December, 2009

Unread post by Philip Duncan »

Mostly from about Mt Wellington northwards at this stage David
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