Hot Weather for the South Island

Paul Mallinson · Unread post by **Paul Mallinson** » Sat 05/01/2013 21:08

NZ Thunderstorm Soc wrote:Would it be heat related?

I don't think so although it may have come close to being surface based.

There was a short wave trough that passed over, (now triggering lightning well to the east of Otago). This resulted in mid level cooling and I think the flow over the terrain triggered the odd cell - that is where there was ascent of the waves in the flow over the terrain.

Paul

Andy · Unread post by **Andy** » Sat 05/01/2013 21:29

It's going to be a hot night here, still 30 degrees

Manukau heads obs · Sat 05/01/2013 21:50

Travelled over authors pass today
Not a cloud on the sky the whole way
Real stunner

Hot around craigeburn,in the 30,s at a guess

NZ Thunderstorm Soc · Sat 05/01/2013 22:07

Paul Mallinson wrote:
NZ Thunderstorm Soc wrote:Would it be heat related?
I don't think so although it may have come close to being surface based.

There was a short wave trough that passed over, (now triggering lightning well to the east of Otago). This resulted in mid level cooling and I think the flow over the terrain triggered the odd cell - that is where there was ascent of the waves in the flow over the terrain.

Paul

Thanks Paul

Dale · Unread post by **Dale** » Sat 05/01/2013 22:27

At the summer racing circuit here all day in Greymouth.. (Omoto Races) and it was a bloody fabulous day. Pity you didn't hang around for it Brian, you would have had a ball if horsies are your thing. Seabreeze kicked up late in the afternoon but I'd say it didn't get past about 24ish the whole time.. fantastic day.. ask again tomorrow when the sunburn kicks in though haha.

einzack · Unread post by **einzack** » Sun 06/01/2013 12:54

sitting on 32.2°C in Reefton at the moment.
bit of scattered high cloud which is threatening to keep a lid of things, but isn't yet.

Dale · Unread post by **Dale** » Sun 06/01/2013 13:14

Not too bad down the road here but it is warming up quick with the same high cloud.. feel for you guys in the basin!

snowstormwatcher · Unread post by **snowstormwatcher** » Sun 06/01/2013 13:22

Metservice going for 27 degrees here today, Cant see it getting quite that warm though with the onshore wind. Will be very warm inland though. Currently 23c.

einzack · Unread post by **einzack** » Sun 06/01/2013 16:08

risen to 34.9°C now.
the cloud burnt off and the breeze dropped off.

Richard · Unread post by **Richard** » Sun 06/01/2013 16:21

einzack wrote:risen to 34.9°C now.
the cloud burnt off and the breeze dropped off.

Your turn for a hot one hey,any sign of cloud build ups your way

einzack · Unread post by **einzack** » Sun 06/01/2013 16:40

Richard wrote:
Your turn for a hot one hey,any sign of cloud build ups your way

nope, the thin high cloud that we did have earlier in the arvo has almost entirely gone. nothing of note whatsoever.

Manukau heads obs · Sun 06/01/2013 20:40

Yeah,the kids did not believe me the sun would
Come out over the pass

gopolks · Unread post by **gopolks** » Sun 06/01/2013 20:58

Awesome fork lightening storm over nelson, the past 45 minutes.

jamie · Unread post by **jamie** » Sun 06/01/2013 21:09

gopolks wrote:Awesome fork lightening storm over nelson, the past 45 minutes.

Yea the trackers were picking up heaps. Did u get any photos?

snowstormwatcher · Unread post by **snowstormwatcher** » Sun 06/01/2013 21:21

Yeah that was some of the best lightning Ive seen for while and I even Manged to get some lightning on video.

gopolks · Unread post by **gopolks** » Sun 06/01/2013 21:23

Didnt get photos myself, some people must of, our whole street was watching it, like a fireworks display.

03Stormchaser · Unread post by **03Stormchaser** » Sun 06/01/2013 21:53

From instagram tonight:

http://instagram.com/stephensimmons1/

jamie · Unread post by **jamie** » Sun 06/01/2013 22:25

Nice shot. Seen a couple on Facebook too.

NZstorm · Unread post by **NZstorm** » Mon 07/01/2013 06:06

Nice photo. The storm over Nelson would have been elevated convecton which makes for photogenic lightning.

Richard · Unread post by **Richard** » Mon 07/01/2013 06:20

That whole area was elevated convection,in this other photo i took last night looking to the NE with the seaward Kaikoura rangers bottom left,it gives you an idea just how high the base of the clouds are

NZstorm · Unread post by **NZstorm** » Mon 07/01/2013 06:49

Yes, very high based storms. Nice photo Richard.
I think the initial thunderstorm over the Malborough ranges was surface based and initiated by wind convergence and heating.
But any thunderstorm away from the ranges (Nelson City) would have to have been elevated. There was a weak short wave over the area late afternoon which would have provided lift.

Richard · Unread post by **Richard** » Mon 07/01/2013 07:06

Yes,that short wave extended way out into the Pacific too,that cloud above was part of a line of them extending from the main thunderstorm over the inland Marlborough ranges out to sea.

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