Change

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NZ Thunderstorm Soc
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Unread post by NZ Thunderstorm Soc »

today brought a change in the weather not seen in most parts of Canterbury for the last 2 months.
To 7pm, I recorded 20.2mm, most seen for ages.
I hear there were some thunderstorms over central regions of the North Island today. anyone have anything further on this?

JohnGaul
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Michael
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Unread post by Michael »

There was this site listed today on another topic it has good pictures of it on here http://www.metvuw.com/cgi-bin/mcgregor/ ... -small.cgi
Its about time We get all the rain up here and all the time on the radio they sound so pleased to mention a day without rain or especially without cloudy also mentioned.
It was warmer today than it has been in the last 2 weeks as we had a N-NW wind today and the rain actually eased off with little wind -the NE here can blow here but its tamer than the SW that screams here even when theres "1 isobar" over the top of NZ ;)
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Unread post by NZstorm »

Sunday,
Will see a few thundery cb's pop up this afternoon, mainly over the
central North island. With the lifted index over Auckland at -1.6, would not suprise me to see some strong convection further north too.

Micheal, you constantly make mention of wind in Auckland. What part
of the region do you live in. Some parts of Auckland do get blasted by wind. There seems to be a wind corridor through Manukau to East Tamiki on southerwesterlies. And the north shore suburbs such as Browns Bay get absolutely hammered on an E/NE. But generally speaking, Auckland does not experience alot of wind by NZ standards. One aspect I enjoy
about Aucklands weather is the lack of days where the wind exceeds 20knots. Not often. I live in Grey Lynn.

Cheers
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Michael
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Unread post by Michael »

I'm in Manurewa The SW howl here as soon as the dreaded wind direction is mentioned let alone the showers that go with it.We don't really get NW here and sometimes the NE can be strong but not too often like the SW and the persistance -I reckon Chch has a nice climate due to the "lack of wind" days when I've been there a long time ago -experiancing the lack of wind days-the overcast high cloud still days.the damp drizzly southerlies but never experienced their NWer:(
I say the nearest to it is on a hot NWer day in Napier-which are very pleasant compared to a typical Auckland day of 3 seasons in 1 day(excepting summer) (which I presume is similar).
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Unread post by Manukau heads obs »

ah, manuwera
you get the SW straight off the manukau harbour
all that stops it, is the narrow manuaku peninsular, and then its the tasman sea and beyond

you should see how strong the SW is on this coast line at times.
it has to reach 80 knots (150km/h) on the hill tops before its considered a windy day, LOL
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Unread post by NZstorm »

Sunday 2.30pm
I am getting burst of quite heavy rain here now from locally developing
showers. I notice quite a nice cb anvil out to NW of Auckland.
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Unread post by Manukau heads obs »

there is a very impressive CB just to the NNE of auckland city
one of the best looking for a long time.
someone must have got alot of rain from that!
i see brynderwyn had 13mm in a short period of time
see
http://ps.gen.nz/~richkids/brynderwyn.htm
!
with 2mm/minute rain
brynderwyn is between welssford and whangarei
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Unread post by NZstorm »

The odd shower here this afternoon with 8mm falling in 5mins around 4.30pm. 12mm for the afternoon. No thunder heard. Just localised heat showers.
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Unread post by Manukau heads obs »

http://www.tokaanuskihire.co.nz/rain3.gif
you can see the heavy rain in narrow lines there right over the brynderwyn area...
:)
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Unread post by Michael »

About 1/2 hr ago we got a tremendous burst of heavy rain lasting about 15 mins Did anyone else get that in AK??
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Unread post by GraemeWi »

I managed to get a few pictures of today's buildups north of Auckland... no thunder though :(

Got a reasonable panorama of the cell(s)

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Other pics at:
http://www.powerlink.co.nz/~graeme/pict ... rch30.html

Cheers,

G
Last edited by GraemeWi on Sun 30/03/2003 18:40, edited 1 time in total.
Guest

Good Cb development...

Unread post by Guest »

...over the last three days, but no audible thunder. A very sticky airstream over the Bay at present, with high daily humidities, and not enough wind to stir the air around! We got a few showers overnight on the 28th/29th, with a total of only 5.9mm, and nothing since. Skies here at 1800 were mostly Cu, with some Ac and As, 5 oktas. It'll be interesting to watch the wee low which seems to be forming on the back of the frontal system out to the east of us. Not too much bother with drought here for a change - we got just enough rain early in the month to green things up. Now we just need warm and dry conditions for the next fortnight to ensure a great vintage...!

George
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Unread post by Manukau heads obs »

while i was milking the cows, i could see that big build up over manurewa (just as I predicted on a email list)...this is what is great about the internet!

cool pictures graeme (how did you get them to show, i tried and failed with some html code)?

I was sent a lightning strike map from Bob Mcdavitt
there was about 15 or so strikes recorded around the wellsford to brynderwyn area and east of that line :)
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Unread post by NZ Thunderstorm Soc »

Today, well to 9am this morning, 15mm fell here which makes yesterday the wettest day of the year so far here. Not bad for March which looks to be a dry month. Tomorrow's SW change should bring enough rain to bring March up to average rainfall and if the NE hangs in, some violent thunder activity to Christchurch?!?!?
are you ready Aaron!

...but then

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Unread post by GraemeWi »

Manukau heads observer wrote:cool pictures graeme (how did you get them to show, i tried and failed with some html code)?
Howdy,

Just press the Img button at the top of the message box which will insert a tag and then enter the url of the image. Click on the Img button again which will close the tag.

Should look something ike this: [ img ] http://www.site.com/pic1.jpg [ / img ]

I've put some spaces in the tags I've just typed to prevent them being parsed.

G
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Unread post by Manukau heads obs »

thanks...., see that now...
i was just trying straight html....
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Unread post by NZ Thunderstorm Soc »

The automatic logger in dosen't work, i have to put my details in all the time to reply to this.

anyway, the last posts have nothing to do with my topic of discussion -
"Change".

All I have had is Auckland weather which should lodged in the Auckland weather posting by Michael on the 27th March.
Please use appropiate posts for weather discussion.

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Unread post by Manukau heads obs »

sorry, it was easier to jump onto this thread than start a new one
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Unread post by greg »

3mm on Saturday from a spectular CB, no thunder or lighting, but made sunset awesome as the setting sun illuminated it.

On Sunday at 1630 one CB rolled in from the East, covered the sky above so could not define height or buildup, 14mm in little over 30minutes, one lighting strike 5 secs away. ( Whats that 5nm in distance off teh top of my head). . Disrupted the lawns, Wind changed from easerly to westerly but max gust only 5kts..;)
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Unread post by Dean. »

7.00pm Monday,raining steadily again in Canterbury,15mm since 3.00pm to go with the 60mm I recorded in Ashburton over the weekend.
Temp 11.0 degrees with a strong southerly.
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Unread post by Manukau heads obs »

just a recap on the thunderstorm at brynderwyn:
a local dairy farmers worker's motorbike was knocked off the track as the cows turned and ran back down the race when being brought in to milk, being spooked because the thunder was so loud!
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Unread post by Michael »

Is the drought in Canterbury broken yet? the southerlies should give you more rain/showers.
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Unread post by NZ Thunderstorm Soc »

I recorded 47.7mm over the last 4 days of March after hardly anything for the rest of the month except for the first day of March.
I'm not sure of rainfall totals in other areas of Canterbury but despite the dry period for most of the month, the rainfall over the last few days must of brought Canterbury's rain total up to average.

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Unread post by Dean. »

90mm recorded in the last 4 days,33mm from yesterdays southerly.
Going to be a cold one tonight with clear skies overhead and fresh snow on the mountains.
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Unread post by tich »

The rain seems to have lingered longer in North Canterbury this afternoon after clearing Christchurch (but only just) - it must've been a very wet day in Waipara and Amberley. TV1 Weather showed fresh snow on the alps and mentioned snow falling as low as Arthur's Pass Village. Winter is certainly getting closer. (don't forget there was a much more ferocious wintry southerly blast on April 1 last year)

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