T-Storms & Tornadoes - Apr 9-13

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spwill
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T-Storms & Tornadoes - Apr 9-13

Unread post by spwill »

The high cloudiness cleared out early here for a fine sunny day, max temps in the low 20s.
A lot of instability showing in the modelling for later tomorrow around the upper North Island, thunderstorm activity on the cards tomorrow evening.
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Nev
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Re: General April Weather

Unread post by Nev »

Here's this morning's TS update for this arvo/evening's active trough. MS maintaining a moderate risk for the upper North Island for T-storms, strong winds, hail and the odd possible tornado...
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spwill
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Re: General April Weather

Unread post by spwill »

The instability numbers are good in the GFS, thunderstorm development will come down to how good the lifting mechanism is later today.

More thunderstorms in the modelling for Tuesday.
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Re: General April Weather

Unread post by Razor »

Very blustery nor Easter coming though Woodend Beach and Kairaki. Seen a couple of trees topple in the forest
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Re: General April Weather

Unread post by Storm Struck »

Razor wrote: Sun 09/04/2023 11:59 Very blustery nor Easter coming though Woodend Beach and Kairaki. Seen a couple of trees topple in the forest
Not too bad in Christchurch yet up around 35kmh but I'm sure will pick up into the afternoon.
Abit of instability about for most of Aotearoa tomorrow and today further north, an upper trough crosses down from the north tomorrow afternoon bringing heavy showers and a risk of thunderstorms on the plains.
Canterbury, home of good rugby and severe storms
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Re: General April Weather

Unread post by NZ Thunderstorm Soc »

Skies looking dark and heavy looking as the evening settles in.
No wind. The calm before the storm, maybe?
Interesting to see what happens tomorrow with the ULT and associated systems as they move across from the west?
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Re: General April Weather

Unread post by David »

Bit of a non-event here so far, not even 1mm of showers yet...
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Re: General April Weather

Unread post by cbm »

David wrote:Bit of a non-event here so far, not even 1mm of showers yet...
That line off the Manukau looks pretty nasty but this system may miss populated Auckland which I'm sure few will mind given what's happened this year so far. Looking like will get something more intense here in the next hr.

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Re: General April Weather

Unread post by spwill »

Looks like a tornado event for parts of South Auckland earlier this evening. Looks less damaging than the Papatoetoe tornado 2 years ago.
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Re: General April Weather

Unread post by Nev »

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Re: General April Weather

Unread post by David »

Really interesting to see that as there weren’t any active thunderstorms around at the time as far as I’m aware. Picked up almost 10mm yesterday evening.
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Re: General April Weather

Unread post by spwill »

I seem to remember the Albany and Papatoetoe tornadoes were from non thunderstorm Cbs.
With last night's event the damage path is quite long and is about a house or two wide so looks like a tornado. There was another tornado in the East Tamaki suburb just 2km away in 2020 and nearby the Papatoetoe tornado in 2021.
I had a look at the damage path this morning and will post some photos. Damage is light but still a bit of a clean up for those affected.
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Re: General April Weather

Unread post by spwill »

Some photos of the damage in East Tamaki.
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Re: General April Weather

Unread post by Richard »

An interesting day coming up for much of NZ
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Re: General April Weather

Unread post by ScottyD »

I went for a short drive this morning and had a look. You can clearly see a narrow path of damage. There's a NZ Herald article, with a video that shows where damage has been reported.

https://www.nzherald.co.nz/nz/tornado-r ... 2BJFUZOTQ/
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Re: General April Weather

Unread post by RODALCO »

1425h Heavy downpour Mt Wellington hwy, outside Sylvia Park. Lasted only about 5 minutes.
Who put the LED's on the lightning arrestor ?
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Re: General April Weather

Unread post by Storm Struck »

Quite an active trough coming down from the north, reports of lots of lightning activity and torrential rain in the upper south Nelson etc.
Reports of a Tornado too unsure where, power out from Golden Bay to parts of Nelson.

Thunderstorms in a torrential band moving into canterbury now, currently sunny 19C with building clouds.
Canterbury, home of good rugby and severe storms
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Re: General April Weather

Unread post by Razor »

Storm approaching fast from the north in Kairaki. A sight to behold
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Re: General April Weather

Unread post by spwill »

Intense rain here at Pokéno near Bombay. Just had a very close lightning strike, the lightning flash and thunder at the same time.
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Re: General April Weather

Unread post by Dean. »

Approaching Methven from the north
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Razor
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Re: General April Weather

Unread post by Razor »

And thunder.... approaching from the NW hitting coastal easterly breeze
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Re: General April Weather

Unread post by mikestormchaser »

Pretty impressive line crossing from north to south. Don't think iv seen that before. Something you would normally see with a SW change in Canterbury
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Re: General April Weather

Unread post by JP. »

Just started raining here in ChCh CBD.
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Re: General April Weather

Unread post by Nev »

Getting a few rumbles of thunder and heavy rain here atm...

Storm Struck wrote: Mon 10/04/2023 14:49 Quite an active trough coming down from the north, reports of lots of lightning activity and torrential rain in the upper south Nelson etc.
Reports of a Tornado too unsure where, power out from Golden Bay to parts of Nelson.

Thunderstorms in a torrential band moving into canterbury now, currently sunny 19C with building clouds.
That possible tornado was in the Upper Moutere area (between Motueka and Richmond) at around 1:20pm...

'Wild weather: Tornado strikes Nelson, lifting roofs and downing trees' - NZ Herald

https://www.stuff.co.nz/national/weathe ... le-tornado
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Re: General April Weather

Unread post by Orion »

Getting very dark here over the past ten minutes or so.
Breeze south-easterly. Temp. 16.7°C.

edit: just heard the first thunder.
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