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Thunderstorms North Island 30 March

Posted: Sun 29/03/2020 08:02
by NZstorm
High confidence of convection tomorrow so may as well kick off a spread.

Airmass moistens tomorrow with cold upper trough. Thunderstorms/hail first develop in western Bay of Plenty early tomorrow morning and then further development across the North Island in the afternoon due heating.

Obviously no driving around tomorrow as the police will likely pull you over.

Re: Thunderstorms North Island 30 March

Posted: Sun 29/03/2020 08:04
by Awhituobs
arm chair chasing then!

Re: Thunderstorms North Island 30 March

Posted: Sun 29/03/2020 08:09
by tornado
yes looking good for some storms tommorow. waikato and bay of plenty best placed? auckland a slightly lower risk but still a risk? at least its something.

Re: Thunderstorms North Island 30 March

Posted: Sun 29/03/2020 11:13
by Nev
MS T-storm Outlook map for tomorrow arvo/evening…

Re: Thunderstorms North Island 30 March

Posted: Sun 29/03/2020 11:43
by Chris W
Got to find something essential to do inland tomorrow (joke)

Maybe not just North Island, thinking of our rural Cantabs who may get some action 0_o

Re: Thunderstorms North Island 30 March

Posted: Sun 29/03/2020 13:14
by jamie
Boy that is an outlook you’d expect to see regularly in summer. Would have even been half a dozen outlooks like this in the past 100 days


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Re: Thunderstorms North Island 30 March

Posted: Sun 29/03/2020 13:23
by Thunder081
Awhituobs wrote: Sun 29/03/2020 08:04 arm chair chasing then!
Arg it's such a shame to happen at this time. At least we can find some good webcams.

Re: Thunderstorms North Island 30 March

Posted: Sun 29/03/2020 13:57
by spwill
All the ingredients are there tomorrow. Mt Eden summit is on my neighbourhood walk.

Re: Thunderstorms North Island 30 March

Posted: Sun 29/03/2020 14:08
by tornado
spwill wrote: Sun 29/03/2020 13:57 All the ingredients are there tomorrow. Mt Eden summit is on my neighbourhood walk.
Yes looking good. Hopefully some thunder and lightning here. And a nice downpour too.

Re: Thunderstorms North Island 30 March

Posted: Sun 29/03/2020 17:30
by Awhituobs
Even some showers around this arvo have popped up

Re: Thunderstorms North Island 30 March

Posted: Sun 29/03/2020 17:59
by cbm
Raining here now. Enough to wet the grass seed I sowed into patches of the lawn on Friday.

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Re: Thunderstorms North Island 30 March

Posted: Sun 29/03/2020 18:16
by spwill
A small shower here now, a convergence line evident from mid afternoon.

Re: Thunderstorms North Island 30 March

Posted: Sun 29/03/2020 20:09
by tornado
didnt get any showers here today but noticed the convergence cloud.

Re: Thunderstorms North Island 30 March

Posted: Sun 29/03/2020 20:49
by tgsnoopy
Thunderstorm out in the Bay at the moment, can hear it thundering away. Took me by surprise, wasn't expecting it.

Re: Thunderstorms North Island 30 March

Posted: Mon 30/03/2020 07:33
by NZstorm
Isolated storms overnight in the western BOP/Coromandel. Quite a bit of lightning with some of those storms yesterday evening.

I see dewpoint of 15C on some of the PWS in Coromandel this morning.

Re: Thunderstorms North Island 30 March

Posted: Mon 30/03/2020 08:13
by David
Hopefully can pick up some decent showers here today! Just 25mm for the month so far

Re: Thunderstorms North Island 30 March

Posted: Mon 30/03/2020 08:30
by tornado
heres this mornings thunderstorm outlook for today.

Valid to: Midnight Monday 30 Mar 2020

Issued at: 8:25am Monday 30 Mar 2020

During the afternoon, winds will be light over much of the country allowing wind convergences to form producing cloud and showers. Combined with the cool temperatures in the upper atmosphere, there is a low risk of thunderstorms developing over much of the North Island and the west of the South Island.

In the east from Gisborne to Hawkes Bay, there is a moderate risk of thunderstorms during the period, bringing localised heavy rain with intensities of 15 to 25mm per hour and small hail, and a moderate risk of SEVERE THUNDERSTORMS, producing localised downpours of 25 to 40mm per hour.

About inland areas of Northland, Auckland, Waikato, Waitomo, Coromandel Peninsula, Bay of Plenty and also Taupo, Taihape and Taumarunui, there is a moderate risk of thunderstorms during the afternoon and evening, bringing localised heavy rain with intensities of 10 to 25mm per hour and small hail. In this area a few storms may be slow moving, with a low risk of SEVERE THUNDERSTORMS producing localised downpours of 25 to 40mm/hr.

There is also a moderate risk of thunderstorms during the afternoon and evening about inland areas of Buller and the Canterbury High Country north of the Mackenzie Basin. If these thunderstorms occur they may be accompanied by localised heavy rain with intensities of 10 to 25mm per hour. A less risk extends over the Mackenzie Basin.

No thunderstorms or severe convection expected over the remainder of New Zealand.
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Re: Thunderstorms North Island 30 March

Posted: Mon 30/03/2020 08:40
by Awhituobs
Already had heavy shower lines here this morning

Re: Thunderstorms North Island 30 March

Posted: Mon 30/03/2020 12:20
by NZstorm
Cloudy weather but some warming occuring. Ardmore airport on 22C and Auckland airport 20C. Hamilton Airport 18C.

Re: Thunderstorms North Island 30 March

Posted: Mon 30/03/2020 13:21
by spwill
My house under some convergence, first shower here now.

Re: Thunderstorms North Island 30 March

Posted: Mon 30/03/2020 14:27
by wre1991
Hopefully see some action in Waihi, it's been a while. What are the chances?

Re: Thunderstorms North Island 30 March

Posted: Mon 30/03/2020 15:09
by NZstorm
wre1991 wrote: Mon 30/03/2020 14:27 Hopefully see some action in Waihi, it's been a while. What are the chances?
Atmosphere looks unstable over Auckland currently, just need some convergence to show up.

I think Waihi had its best chance late last night/early this morning with a front moving across the area from the east.

Re: Thunderstorms North Island 30 March

Posted: Mon 30/03/2020 15:34
by Awhituobs
Build ups
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Re: Thunderstorms North Island 30 March

Posted: Mon 30/03/2020 16:17
by tgsnoopy
Glad it's not as bad as forecast so far. Had a fault to attend at Takaurunga. Very high based and rumbling but quite tame really.
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Re: Thunderstorms North Island 30 March

Posted: Mon 30/03/2020 16:23
by spwill
Photo of some T cu over South Auckland seen from home, any Cb around have looked weak so far.