General December Weather

Richard · Unread post by **Richard** » Tue 26/12/2017 18:20

Oh and getting a lovely rain too, a massive 3mm so far, well, at least thats the dust settled for a while.

NZstorm · Unread post by **NZstorm** » Tue 26/12/2017 20:41

Nelson Airport reporting thunderstorm.

I see the forecast low for Auckland in the morning is 12C. Quite chilly on what we have been getting lately.

David · Unread post by **David** » Tue 26/12/2017 20:53

NZstorm wrote: ↑Tue 26/12/2017 20:41 Nelson Airport reporting thunderstorm.

I see the forecast low for Auckland in the morning is 12C. Quite chilly on what we have been getting lately.

That's for tomorrow night. Showing 15 tonight

jamie · Unread post by **jamie** » Tue 26/12/2017 21:29

I was expecting more than 4mm today. Bloody pathetic.

BeaconHill · Unread post by **BeaconHill** » Tue 26/12/2017 21:49

In Nelson on holiday and managed to get treated to some thunderstorm action. Got rather hot mid afternoon, 27 deg C in the shade on my Thermodo plugged into my iPhone. Wind was swinging SW to NW most of the afternoon (planes landing and taking off from airport proved that!).
Dark clouds built from south and finally managed to push over top of the remains NW wind and things started to get going rather nicely. A couple of impressive cloud to cloud strikes covering a LONG distance between clouds!!

Managed to capture some closer strikes via slo mo videos as the lightning got closer to Stoke.

First frame of a reasonably close strike. Overloads the camera sensor, but you can see the fingers of lightning coming down from the cloud

CDB78A94-CB45-4E13-A720-F9EB2855A1D6.png

Main flash completely overloading camera sensor

3957EB21-8872-4ABC-A046-40FCDE82F610.png

The remnants of the CG strike

13E8C4B1-81B8-48A6-B213-08B91DA2F8AB.png

And subsequent CC action soon after

6AB9B25B-25C7-4874-BA8A-EEDABB230ED5.png

Orion · Unread post by **Orion** » Tue 26/12/2017 22:11

Neat pictures, BeaconHill

Orion · Unread post by **Orion** » Wed 27/12/2017 06:34

7.0°C here at present

; the line of clouds to the east spectacularly hard-edged against the light of the sun.

Nice to hear the rain at times yesterday.

Nev · Unread post by **Nev** » Wed 27/12/2017 07:05

RWood wrote: ↑Tue 26/12/2017 16:42 What was the previous Culverden site like? Presumably the newer one at the airstrip gets well ventilated ...

There looks to have been about 6 other sites in and around Culverden between 1983 and 2009, including the airfield for the the first 6 years. There's also a thread about the current site here.

NZstorm · Unread post by **NZstorm** » Wed 27/12/2017 07:47

Great shots BeaconHill. Lightning in the first frame looks very close!

Richard · Unread post by **Richard** » Wed 27/12/2017 07:55

jamie wrote: ↑Tue 26/12/2017 21:29 I was expecting more than 4mm today. Bloody pathetic.

Same amount as here, the dust settler i thought it would be.

Richard · Unread post by **Richard** » Wed 27/12/2017 08:11

Yes great shots alright BeaconHill.

RWood · Unread post by **RWood** » Wed 27/12/2017 08:32

Nev wrote: ↑Wed 27/12/2017 07:05
RWood wrote: ↑Tue 26/12/2017 16:42 What was the previous Culverden site like? Presumably the newer one at the airstrip gets well ventilated ...
There looks to have been about 6 other sites in and around Culverden between 1983 and 2009, including the airfield for the the first 6 years. There's also a thread about the current site here.

Thanks Nev, interesting. With about 6-7 sites for the 1981-2010 period, assigning some normals values must have been an interesting exercise ...

Razor · Unread post by **Razor** » Wed 27/12/2017 09:38

20 glorious mm for us, maybe a shower or two more to come. Much welcomed, apart from at the cricket!

Richard · Unread post by **Richard** » Wed 27/12/2017 12:41

Each shower that passes over is getting heavier and heavier, keep em coming please.

cbm · Unread post by **cbm** » Wed 27/12/2017 13:08

Waikato river down to within 5cm of lowest level since records began 1975, which was in 2002.

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BeaconHill · Unread post by **BeaconHill** » Wed 27/12/2017 17:11

NZstorm wrote: ↑Wed 27/12/2017 07:47 Great shots BeaconHill. Lightning in the first frame looks very close!

That one was just under 1km away and was nice and loud.

The CC one streaked further across the sky for a long distance and rumbled for ages as a result.

Must say, the iPhone slo-mo mode worked well at capturing the images. I then just took screen grabs of the relevant frames out of a 1min long video recording each time.

03Stormchaser · Unread post by **03Stormchaser** » Wed 27/12/2017 17:51

BeaconHill wrote:
NZstorm wrote: ↑Wed 27/12/2017 07:47 Great shots BeaconHill. Lightning in the first frame looks very close!
That one was just under 1km away and was nice and loud.

The CC one streaked further across the sky for a long distance and rumbled for ages as a result.

Must say, the iPhone slo-mo mode worked well at capturing the images. I then just took screen grabs of the relevant frames out of a 1min long video recording each time.

Going to post the video?

BeaconHill · Unread post by **BeaconHill** » Wed 27/12/2017 18:21

03Stormchaser wrote: ↑Wed 27/12/2017 17:51
BeaconHill wrote:
That one was just under 1km away and was nice and loud.

The CC one streaked further across the sky for a long distance and rumbled for ages as a result.

Must say, the iPhone slo-mo mode worked well at capturing the images. I then just took screen grabs of the relevant frames out of a 1min long video recording each time.
Going to post the video?

Can’t seem to upload direct from iPhone. Will have to see if I can upload to YouTube and post from there.

Nathanaelcraven · Unread post by **Nathanaelcraven** » Wed 27/12/2017 20:40

17 mm here in total from Tuesday and overnight mainly. Seemed like some pretty moist air Tuesday round lunch time with first wave of showers from the south.

NZstorm · Unread post by **NZstorm** » Thu 28/12/2017 07:16

A cool airmass over Auckland today, 850mb temp 3C. Typically I add 16C to the 850mb temperature to get an idea of the maximum for the day.

spwill · Unread post by **spwill** » Thu 28/12/2017 08:58

The dewpoint in Auckland is only 5C, normal is around 16C.

The Airport showing 7.6mm for December, Grey Lynn with 13.8mm. Next rain will be with a humid trough early in the New Year, a lot of instability showing up in the GfS on the back of some very moist air for early New Year.

melja · Unread post by **melja** » Thu 28/12/2017 09:05

Good dusting of snow on the kaikoura ranges yesterday coming back from the sounds. The warmth of pre Xmas had subsided for sure.

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Cyclone Tracy · Unread post by **Cyclone Tracy** » Thu 28/12/2017 10:48

That low off the east coast of the north island is tightening up nicely. Now blowing 45 knots on the marine traffic wind obs at 9am. Not too many ships wanting to take it on

spwill · Unread post by **spwill** » Thu 28/12/2017 12:46

Some low midday temperatures up the east side of NZ. Masterton showing 12C.

David · Unread post by **David** » Thu 28/12/2017 13:33

Went walking in the Hunua Ranges this morning. Nice day for it, not so hot today. Cloud cover burnt off nicely by late morning.

Some photos below.

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