Thunderstorm Potential Early Dec 2009 in the North

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These topics are a read-only archive and may be subject to out-of-date information.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
Manukau heads obs
Posts: 12305
Joined: Mon 10/03/2003 16:30
Location: West Coast Road, Manukau Peninsula, North Island
Has thanked: 0
Been thanked: 0
Contact:

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
Image
Brian Hamilton, weather enthusiast. My weather dataEmail: [email protected]
User avatar
Vertigo
Posts: 1181
Joined: Sun 09/12/2007 23:50
Location: Grafton, Auckland
Has thanked: 0
Been thanked: 7 times
Contact:

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.
Collated weather maps @ http://ohthehugemanatee.com/weather/
User avatar
Tornado Tim
Moderator
Posts: 4894
Joined: Sun 19/10/2008 17:17
Location: Raglan, Waikato / Hillcrest, Hamilton
Has thanked: 91 times
Been thanked: 174 times
Contact:

Re: Thunderstorm Potential Early December, 2009

Unread post by Tornado Tim »

The warning has now been lifted.
NZAPStrike.net - NZ Aus Pacific Strike Network
User avatar
Vertigo
Posts: 1181
Joined: Sun 09/12/2007 23:50
Location: Grafton, Auckland
Has thanked: 0
Been thanked: 7 times
Contact:

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.
Collated weather maps @ http://ohthehugemanatee.com/weather/
spwill
Posts: 9353
Joined: Sun 29/06/2003 22:39
Location: Mt Eden Auckland
Has thanked: 431 times
Been thanked: 526 times

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.
Manukau heads obs
Posts: 12305
Joined: Mon 10/03/2003 16:30
Location: West Coast Road, Manukau Peninsula, North Island
Has thanked: 0
Been thanked: 0
Contact:

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
Image
Brian Hamilton, weather enthusiast. My weather dataEmail: [email protected]
User avatar
Vertigo
Posts: 1181
Joined: Sun 09/12/2007 23:50
Location: Grafton, Auckland
Has thanked: 0
Been thanked: 7 times
Contact:

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.
Collated weather maps @ http://ohthehugemanatee.com/weather/
User avatar
DT-NZ
Posts: 1010
Joined: Mon 09/02/2009 10:55
Location: Northland, NZ
Has thanked: 0
Been thanked: 0

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*
Lightning in NZ
The right terminology lends a hint as to the nature of the different forms.
A Vertigo Quote.
Manukau heads obs
Posts: 12305
Joined: Mon 10/03/2003 16:30
Location: West Coast Road, Manukau Peninsula, North Island
Has thanked: 0
Been thanked: 0
Contact:

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
Image
Brian Hamilton, weather enthusiast. My weather dataEmail: [email protected]
spwill
Posts: 9353
Joined: Sun 29/06/2003 22:39
Location: Mt Eden Auckland
Has thanked: 431 times
Been thanked: 526 times

Re: Thunderstorm Potential Early December, 2009

Unread post by spwill »

A couple of snaps from my afternoon in the country.
You do not have the required permissions to view the files attached to this post.
Last edited by spwill on Fri 04/12/2009 17:15, edited 1 time in total.
User avatar
Michael
Posts: 7210
Joined: Thu 27/03/2003 12:04
Location: Rainy Manurewa, Auckland - "City of Gales"
Has thanked: 0
Been thanked: 1 time
Contact:

Re: Thunderstorm Potential Early December, 2009

Unread post by Michael »

Too cold now for anything to happen now.
C-Nimbus
Posts: 692
Joined: Tue 20/01/2004 13:22
Location: Waitakere City - Westie!!
Has thanked: 0
Been thanked: 0

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
User avatar
David
Posts: 7149
Joined: Sat 18/08/2007 21:02
Location: Howick, Auckland
Has thanked: 345 times
Been thanked: 533 times
Contact:

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!
Image
User avatar
NZstorm
Posts: 11333
Joined: Mon 10/03/2003 19:38
Location: Grey Lynn, Auckland
Has thanked: 342 times
Been thanked: 361 times

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.
User avatar
Michael
Posts: 7210
Joined: Thu 27/03/2003 12:04
Location: Rainy Manurewa, Auckland - "City of Gales"
Has thanked: 0
Been thanked: 1 time
Contact:

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.
spwill
Posts: 9353
Joined: Sun 29/06/2003 22:39
Location: Mt Eden Auckland
Has thanked: 431 times
Been thanked: 526 times

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.
Manukau heads obs
Posts: 12305
Joined: Mon 10/03/2003 16:30
Location: West Coast Road, Manukau Peninsula, North Island
Has thanked: 0
Been thanked: 0
Contact:

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 :)
Image
Brian Hamilton, weather enthusiast. My weather dataEmail: [email protected]
Lozza
Posts: 13
Joined: Wed 07/05/2008 09:25
Location: Bethells Beach, West Auckland
Has thanked: 0
Been thanked: 0

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.

How do I add attachments?
User avatar
NZstorm
Posts: 11333
Joined: Mon 10/03/2003 19:38
Location: Grey Lynn, Auckland
Has thanked: 342 times
Been thanked: 361 times

Re: Thunderstorm Potential Early December, 2009

Unread post by NZstorm »

To add attachments click on the 'browse' and then add your attachment. You then need to click on 'add the file' to upload.
User avatar
Vertigo
Posts: 1181
Joined: Sun 09/12/2007 23:50
Location: Grafton, Auckland
Has thanked: 0
Been thanked: 7 times
Contact:

Re: Thunderstorm Potential Early December, 2009

Unread post by Vertigo »

its STILL raining pretty heavily in penrose. wettest day this year?!
Collated weather maps @ http://ohthehugemanatee.com/weather/
Philip Duncan
Posts: 519
Joined: Mon 27/08/2007 21:02
Location: Waitakere City
Has thanked: 0
Been thanked: 0
Contact:

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!
Phil.
User avatar
NZstorm
Posts: 11333
Joined: Mon 10/03/2003 19:38
Location: Grey Lynn, Auckland
Has thanked: 342 times
Been thanked: 361 times

Re: Thunderstorm Potential Early December, 2009

Unread post by NZstorm »

The online Albany weather station has 72mm now.
NZ Thunderstorm Soc
Posts: 17173
Joined: Wed 12/03/2003 22:08
Location: Raukapuka Geraldine
Has thanked: 1241 times
Been thanked: 957 times

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

JohnGaul
NZThS
JohnGaul
NZThS
User avatar
David
Posts: 7149
Joined: Sat 18/08/2007 21:02
Location: Howick, Auckland
Has thanked: 345 times
Been thanked: 533 times
Contact:

Re: Thunderstorm Potential Early December, 2009

Unread post by David »

Still no heavy rain here - very light rain currently.
Image
Philip Duncan
Posts: 519
Joined: Mon 27/08/2007 21:02
Location: Waitakere City
Has thanked: 0
Been thanked: 0
Contact:

Re: Thunderstorm Potential Early December, 2009

Unread post by Philip Duncan »

Mostly from about Mt Wellington northwards at this stage David
Locked