Thunder possible North Island - Jan 11/12

[NZstorm]

Pic of cb out to S of Auckland as seen from Grey Lynn a few mins ago.

[Manukau heads obs]

sea breeze has arrived this far inland, but its weakening already, and there is nothing happening in the auckland area
but the showers over the coromandel might get pushed this direction as the easterly flow develops overnight more?

[Tornado Tim]

Nice to hear some thunder after a long absence.

Still some CBs to the East got an Anvil over me right now

[jamie]

my girl friend is driving up from taihape and is in pataruru and saying there is surface flooding

[NZstorm]

Area of convection out to the south hasn't moved much since my last photo but is looking weaker. Pic at sunset.

[spwill]

Satellite pic shows those storms this evening, BOP, West Waikato, Taranaki.

[Manukau heads obs]

oh, yes, rain radar shows big area of rain in the pataruru area
signs of upper level instability out to me west

[spwill]

Cb tops from Ak Airport around 5pm.

[Manukau heads obs]

was nice to see convection today thats for sure

[David]

I see Metservice have a high risk for western Northland tomorrow afternoon/evening, with "a low risk of these thunderstorms becoming slow moving and severe"

[Richard]

neat looking clouds up your way today,lucky buggers

[Michael]

Some buildups from tekuiti south along to taranaki and heavy spits through there.

[NZstorm]

Looks like the thunder risk today will be over the central North Island south of Taupo. GFS has moisture there this afternoon and I can see a cb or two popping up especially over those ranges. Looks like the wind patterns will be coverging on the area as well.

Further north I'm doubting any convection up this way or over Northland. Too much of an easterly gradient today for a west coast sea breeze.

[Tornado Tim]

Looks like another similar situation Today

Dps expected to be a little less but 16°C is good enough for a storm.

Here is a forecasted skew-t today:

[Manukau heads obs]

DP is nearly 19C here today now....
have had a few passing misty showers even in the easterly
if a sea breeze does develop, could be good
one problem is that the sea temperature is now 22C
so the sea breeze is much later at getting going

[spwill]

I see there are a few heavy showers over Northland currently. Will they get enough heating up there today for a west coast seabreeze ?

Mild cloudy conditions here, mod NE Breeze. 19C Dp.

[spwill]

I see there are a few heavy showers over Northland currently.

I see showers have been generating over the hill country during the day to the west of the Bay of Islands, must be some wind convergence through that area, east converging with NE perhaps ?
Some heating up there now with kerikeri on 25.4C, dewpoint 19C.

[Manukau heads obs]

a stable looking day here
sea breeze bent the wind from ENE to NNE here

[NZstorm]

Isolated lightning up around Kaitaia and just south of Taupo last hr.

[spwill]

This excellent Russell webcam shows some of todays Cb cloud.
http://www.takeabreak.co.nz/accommodation/russell.asp

[Orion]

spwill - that's one of the most interesting and attractive webcam views I've ever seen - thankyou!

[NZstorm]

The thunderstorm down there is between Waiouru and Taihape.

Met Service have a warning on it.

[NZ Thunderstorm Soc]

Yes, I see that MetService has some SEVere TH. warnings/watches out.

JohnGaul
NZThS

[Nev]

Yep, down near Waiouru now. For the records...

SEVERE THUNDERSTORM WARNING
TOP PRIORITY FOR IMMEDIATE BROADCAST

Issued by MetService at 06:08 pm Saturday 12 February 2011.
Valid until 06:52 pm Saturday 12 February 2011.

This warning affects people in the following local government areas:
RUAPEHU and RANGITIKEI.

At 05:52 pm, MetService weather radar detected severe thunderstorms near WAIOURU.

These severe thunderstorms are moving towards the eastnortheast, and are expected to lie near WAIOURU at 06:22 pm and near WAIOURU at 06:52 pm.

These thunderstorms are expected to be accompanied by very heavy rain.

Very heavy rain can cause surface and/or flash flooding about streams, gullies and urban areas, and make driving conditions extremely hazardous.

Very heavy rain associated with this storm has been reported earlier from BAY OF PLENTY AND NEW PLYMOUTH RADARS.

A Severe Thunderstorm Watch remains in force for TAIHAPE and TARANAKI.

The Ministry of Civil Defence and Emergency Management advises that as storms approach you should:
- Take shelter, preferably indoors away from windows;
- Avoid sheltering under trees, if outside;
- Move cars under cover or away from trees;
- Secure any loose objects around your property;
- Check that drains and gutters are clear;
- Be ready to slow down or stop, if driving.
During and after the storm, you should also:
- Beware of fallen trees and power lines;
- Avoid streams and drains as you may be swept away in flash flooding.

This warning is due to be updated or lifted by 06:52 pm Saturday 12 February 2011.

[NZ Thunderstorm Soc]

I wonder if anything happened?
Seems to be rather quiet

JohnGaul
NZThS