Storms - northern half of NZ 21/11/2018

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Richard
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Storms - northern half of NZ 21/11/2018

Unread post by Richard »

Given how wide spread the risk area takes in today, a thread may as well be started.

From the Metservice -
Valid to: Midnight Wednesday 21 Nov 2018

Issued at: 7:54am Wednesday 21 Nov 2018

Cold temperatures at upper levels and daytime heating are expected to bring unstable showery conditions to the North Island and the upper South Island today.

A trough spreads east across northern and central New Zealand this afternoon and evening. There is a moderate risk of thunderstorms for much of the North Island, which may produce localised rainfall rates of 10 to 25mm/hr and 10 to 20mm hail. However, the risk is considered low in coastal Gisborne, parts of Hawkes Bay, in Wellington and along the coast from Kapiti to the south of Taranaki as indicated on the chart. The risk of thunderstorms reduce to low in Auckland and Northland from evening.

There is a moderate risk of thunderstorms in inland parts of Buller, Nelson, Marlborough and the far north of Canterbury, which may produce localised rainfall rates of 10 to 25mm/hr and hail of 10 to 15mm diameter. There is a low risk of thunderstorms over much of the remainder of the upper South Island as indicated on the chart.
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Richard
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Re: Storms - northern half of NZ 21/11/2018

Unread post by Richard »

So so unusual to have the first building of the day to the east, normally start building around the foothills first.
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Re: Storms - northern half of NZ 21/11/2018

Unread post by David »

Uninteresting morning so far. Been dull and cold with some light rain. Perhaps a bit of heating would help get things going
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Re: Storms - northern half of NZ 21/11/2018

Unread post by Richard »

Looking very interesting now and it not even 11.00

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Re: Storms - northern half of NZ 21/11/2018

Unread post by spwill »

We had a clear cold night here, then clouding over early with cool showers to kill instability. We will have some sunny breaks this afternoon and increasing instability but I think less local convergence than yesterday.
Will keep a watch for anything interesting :-)
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Re: Storms - northern half of NZ 21/11/2018

Unread post by Chris W »

Hopeful in Kaikõura, and the sky is darkening.
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Re: Storms - northern half of NZ 21/11/2018

Unread post by Richard »

A lot more sun about now, that might help with heating
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Re: Storms - northern half of NZ 21/11/2018

Unread post by mikestormchaser »

I'm seeing again a risk inland Canterbury tomorrow afternoon.
Moderate risk for me. Nothing by metservice yet, could be a funnel aswel
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Re: Storms - northern half of NZ 21/11/2018

Unread post by Richard »

Hope you are right Mike.

Certainly been some dramatic clouds forms about today, this photo just taken looking to the SE
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Re: Storms - northern half of NZ 21/11/2018

Unread post by Cyclone Tracy »

Trough moving in on Auckland from the west.
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Re: Storms - northern half of NZ 21/11/2018

Unread post by jamie »

Finally caught a decent shower. Still only had 10mm from this entire event. Heard a rumble of thunder not long ago.


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Re: Storms - northern half of NZ 21/11/2018

Unread post by Richard »

Looking N
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Re: Storms - northern half of NZ 21/11/2018

Unread post by Richard »

Thunder just heard from N direction \:D/
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Re: Storms - northern half of NZ 21/11/2018

Unread post by snowchaser01 »

Richard wrote: Wed 21/11/2018 17:35 Thunder just heard from N direction \:D/
Radar showing good development up your way too Richard!
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Re: Storms - northern half of NZ 21/11/2018

Unread post by Richard »

hearing quite a few rumbles now from this storm.
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Re: Storms - northern half of NZ 21/11/2018

Unread post by Thunder081 »

BIG activity seen from Levin looks like it's near the north Tararua foothills
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Re: Storms - northern half of NZ 21/11/2018

Unread post by spwill »

A lightning flash here just now to the southwest and thunder.
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Re: Storms - northern half of NZ 21/11/2018

Unread post by Richard »

Seeing a good number of IC lighting but has died in the last 10mins
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Re: Storms - northern half of NZ 21/11/2018

Unread post by spwill »

Not much at my place with the evening shower line.
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Re: Storms - northern half of NZ 21/11/2018

Unread post by NZ Thunderstorm Soc »

Richard wrote: Wed 21/11/2018 18:29 Seeing a good number of IC lighting but has died in the last 10mins

Good to see that you a getting a turn, this time :smile:
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Re: Storms - northern half of NZ 21/11/2018

Unread post by David »

spwill wrote: Wed 21/11/2018 18:34 Not much at my place with the evening shower line.
Yeah same, it went very dark and gloomy as if there was stormy weather incoming... then just a bit of light rain.
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Re: Storms - northern half of NZ 21/11/2018

Unread post by Richard »

At about 5.00 i didnt think anything would develop but then suddenly it came to life. Here comes the heavy rain
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Re: Storms - northern half of NZ 21/11/2018

Unread post by Richard »

Managed to capture one IC
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Re: Storms - northern half of NZ 21/11/2018

Unread post by mikestormchaser »

Richard wrote: Wed 21/11/2018 18:59 Managed to capture one IC IMG_6792.jpg
Nice Richard, I thought there might be something your way today. I posted about it last night but in the general November thread. "wrong thread" #-o
There is some castalanus "your favourite word john" over the port hills tonight and TCU looking north as I drive home to rolleston.
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Re: Storms - northern half of NZ 21/11/2018

Unread post by Richard »

The storm bought with it 11.2 mm of rain and a small amount of pea sized hail.
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