Upper Trough, Possible Storms, Central East NI, 23rd August

NZstorm · Unread post by **NZstorm** » Thu 23/08/2012 07:13

Looks like quite a strong upper trough crossing the North Island today!
Looks like some inland showers today.
Eastern BOP could be a good spot for isolated thunder/hail given there should be surface heating there today.
Anyway, we want these set ups later in spring.

Tornado Tim · Unread post by **Tornado Tim** » Thu 23/08/2012 11:25

Metservices T-storm outlook for reference:

Metservice wrote:Updated at 9:35am to increase risk about Tararua Ranges to MODERATE this afternoon.

The North Island is expected to be quite unstable today as an upper trough and a pool of cold air aloft move onto the central North Island during the afternoon and evening.

Cloud buildups are expected to produce scattered showers in most inland parts of the North Island, and also the northern and western South Island today. Some of these showers will be heavy from Auckland southwards, especially about the higher ground.

Isolated afternoon and evening thunderstorms are expected about Taupo, Taihape,inland Hawkes Bay and the Tararua Ranges, with a lower risk of afternoon and evening storms from Rotorua, eastern Waikato and inland Gisborne down to inland Tarnaki and the Tararuas as indicated on the chart.

There is also a moderate risk of thunderstorms about coastal Bay of Plenty from evening, especially offshore. A lower risk extends up into the outer Hauraki Gulf tonight as indicated on the chart.

Localised heavy rain and hail will accompany the thunderstorms.

Tornado Tim · Unread post by **Tornado Tim** » Thu 23/08/2012 11:53

Heavy showers already developing in the central North Island.
Might be worth a chase in the CNI due to storm's being isolated.....

jamie · Unread post by **jamie** » Thu 23/08/2012 12:30

its awesome looking at the effect the higher ground has on the uplift. Mt Te Aroha and Mt Pirongia are our two tallest peaks around here and they both were the first to produce even are cloud. Now going by the radar those buildups ontop on the Mtns are the first to drop rain in the area.

Further south it certainly looks as though thunder is on the cards this afternoon with the ammount of heating going on today.

Tornado Tim · Unread post by **Tornado Tim** » Thu 23/08/2012 12:48

TCU going up the east, seems to be progressing fairly quickly.

jamie · Unread post by **jamie** » Thu 23/08/2012 12:55

yea looks like a summers day out there.

I have a fantastic view east with nice turkey towers going up

spwill · Unread post by **spwill** » Thu 23/08/2012 16:03

Isolated heat showers for Auckland this afternoon, max around 16C, dp 11C.

jamie · Unread post by **jamie** » Thu 23/08/2012 16:05

small thunder clap to my NNW from a small shower. How nice!!!!!

amazing look to the skies today with all the summer looking showers and cbs

Tornado Tim · Unread post by **Tornado Tim** » Thu 23/08/2012 16:20

Cb to the north with a glaciated top

spwill · Unread post by **spwill** » Thu 23/08/2012 16:48

Has been a funnel cloud over Auckland, west of here.

cupoteacoast · Unread post by **cupoteacoast** » Thu 23/08/2012 16:49

Paekakariki, beautiful. towering storm cloud horizon been forming over the mountains this afternoon. Cu-nimb formed to the NE earlier on.

Brassnz · Unread post by **Brassnz** » Thu 23/08/2012 17:01

I got two photos of the "funnel" from Grafton, will see if I can work out how to post. To be honest it didn't look like a funnel as such, just a long dangly cloud from where I was. But worth a couple of photos from my Blackberry.

Tornado Tim · Unread post by **Tornado Tim** » Thu 23/08/2012 17:17

Thunder

David · Unread post by **David** » Thu 23/08/2012 17:26

It was having a good rain in Auckland city after 4pm when I was leaving, dry here in Howick though (apart from a few spots)

littleheaven · Unread post by **littleheaven** » Thu 23/08/2012 17:36

spwill wrote:Has been a funnel cloud over Auckland, west of here.

There were certainly some very suspicious lower areas of cloud coming from the base of a huge CB as I drove up the northern towards Albany at around 3.15pm. Didn't see any funnels but was keeping my eyes peeled.

jamie · Unread post by **jamie** » Thu 23/08/2012 17:42

Doing this with app on iphone so hopefully images work.

Heard lots of thunder today. Has been a very nice surprise.

ImageUploadedByTapatalk1345700345.127177.jpg

interesting lowering there

ImageUploadedByTapatalk1345700379.193283.jpg

bigger picture of the entire little thunder shower

Tornado Tim · Unread post by **Tornado Tim** » Thu 23/08/2012 17:45

Pics;

ricky · Unread post by **ricky** » Thu 23/08/2012 17:51

That FC may have passed near home, huge gust of wind with wild direction change and baro dip recorded by the weather station!

NZstorm · Unread post by **NZstorm** » Thu 23/08/2012 18:27

Funnel cloud looking west from Epsom late afternoon.

NZ Thunderstorm Soc · Thu 23/08/2012 18:53

You guys must be getting bored by all the thunderstorm activity up there

We are SOOOOOOOOOOOOOOOOOOOOOOOOO bored down here with the lack of such activity.
We are so starved of such treats.
Hope we get our turn as the spring moves on into summer

Fingers and arses crossed

Thunder · Unread post by **Thunder** » Thu 23/08/2012 18:59

Great stuff up north today, few storms still going!

Wicked shot NZstorm.

spwill · Unread post by **spwill** » Thu 23/08/2012 19:02

I saw a brief roping Funnel, photo. Also a shot of shower cloud building to the southeast of Auckland over Waikato.

David · Unread post by **David** » Thu 23/08/2012 19:06

Had 5.6mm rain here in the end, over about an hour. Excellent pics everyone!

Tornado Tim · Unread post by **Tornado Tim** » Thu 23/08/2012 20:01

Odd bit of flickering going on with the storms off the eastern coast, some heavy rain going on between the Kaimais and Tauranga.

tgsnoopy · Unread post by **tgsnoopy** » Thu 23/08/2012 20:03

Noticed an occasional flash in the South East direction. In the last half hour it's started occasional heavy drop sort of rain. Nothing work me getting overly motivated just yet, but you never know what it's about to bring.

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