Squalls and Thunder, Western parts of both Islands 9-10 July

Archive of NZ Weather & Climate
Forum rules
These topics are a read-only archive and may be subject to out-of-date information.

For today's weather discussion head to: New Zealand Weather & Climate
User avatar
Tornado Tim
Moderator
Posts: 4920
Joined: Sun 19/10/2008 17:17
Location: Raglan, Waikato / Hillcrest, Hamilton
Has thanked: 102 times
Been thanked: 202 times
Contact:

Re: Squalls and Thunder, Western parts of both Islands 9-10 July

Unread post by Tornado Tim »

Sunny with towers going up everywhere....

16.8°C atm so its fairly warm :)
NZAPStrike.net - NZ Aus Pacific Strike Network
bmo
Posts: 739
Joined: Sat 20/03/2010 00:40
Location: Auckland
Has thanked: 0
Been thanked: 0

Re: Squalls and Thunder, Western parts of both Islands 9-10 July

Unread post by bmo »

It's raining here with thunder just when i was on top of our hill changing the place of my weatherstation....went down the hill very fast! WOnt want to be hit with lightning.
Huge thunder clap :cute: just now with hail...
Last edited by bmo on Sun 10/07/2011 14:27, edited 1 time in total.
Razor
Moderator
Posts: 5121
Joined: Fri 10/02/2006 15:14
Location: Halswell, Christchurch
Has thanked: 717 times
Been thanked: 923 times

Re: Squalls and Thunder, Western parts of both Islands 9-10 July

Unread post by Razor »

Tornado Tim wrote:Last night was awesome, and Like Jamie I am tired now, LOL

Over 4000 strokes since midnight here or over 2000 flashes of lightning.
If this wasn't a weather forum I would most definitely have a raised eyebrow, I'm not sure 'strokes' was the word you were after ... :lol:
Last edited by Razor on Sun 10/07/2011 14:41, edited 1 time in total.
Christchurch Rocks
User avatar
David
Posts: 7578
Joined: Sat 18/08/2007 21:02
Location: Howick, Auckland
Has thanked: 416 times
Been thanked: 825 times
Contact:

Re: Squalls and Thunder, Western parts of both Islands 9-10 July

Unread post by David »

A beautiful day here, plenty of sunshine, no sign of showers. Maybe later...
Image
bmo
Posts: 739
Joined: Sat 20/03/2010 00:40
Location: Auckland
Has thanked: 0
Been thanked: 0

Re: Squalls and Thunder, Western parts of both Islands 9-10 July

Unread post by bmo »

David wrote:A beautiful day here, plenty of sunshine, no sign of showers. Maybe later...
Over here all hell just broke loose, literally!
Really strong winds heavy rain hail and lightning...what could you wish for?
Oww more thunder =D>
ricky
Posts: 1054
Joined: Sun 28/09/2003 21:27
Location: Grey Lynn, Auckland
Has thanked: 488 times
Been thanked: 40 times
Contact:

Re: Squalls and Thunder, Western parts of both Islands 9-10 July

Unread post by ricky »

Those Cbs viewed from Grey Lynn.. producing lots of Rumbles :)
You do not have the required permissions to view the files attached to this post.
Image
User avatar
Dale
Posts: 1070
Joined: Sun 27/07/2008 08:59
Location: Greymouth - Feral Coast.. NZ
Has thanked: 0
Been thanked: 0

Re: Squalls and Thunder, Western parts of both Islands 9-10 July

Unread post by Dale »

Went for a walkabout earlier to see if there was any damage (and get some hot chips for lunch from the takeaway :mrgreen: ) just some minor damage around the place, the guttering at the pool, couple of street signs bent over, aesthetic damage at my place and next door, probably the worst around that I did see was next door to the miners hall, the fence there got turned into matchsticks.. but looking at how bodgey it was, no surprises it blew apart. I took a pic of it anyway lol.
01100711.JPG
You do not have the required permissions to view the files attached to this post.
User avatar
Tornado Tim
Moderator
Posts: 4920
Joined: Sun 19/10/2008 17:17
Location: Raglan, Waikato / Hillcrest, Hamilton
Has thanked: 102 times
Been thanked: 202 times
Contact:

Re: Squalls and Thunder, Western parts of both Islands 9-10 July

Unread post by Tornado Tim »

Razor wrote: If this wasn't a weather forum I would most definitely have a raised eyebrow, I'm not sure 'strokes' was the word you were after ... :lol:
Huh?

Yes Strokes was the word I was looking for. The word "stroke" has been known for a long time.

Lightning is actually comprised of 'strokes' a leader stroke and a return stroke, there is also stepped leader strokes and dart leader strokes.
Its all to do with the transfer of charges between the cloud and the ground or just in the cloud (depending on which lightning stroke occurs)

more info about strokes: http://hyperphysics.phy-astr.gsu.edu/hb ... igseq.html

For reference: 1 Flash could have many strokes.

A lightning 'strike' on the other hand is very unspecific and could mean a flash or a stroke.
NZAPStrike.net - NZ Aus Pacific Strike Network
User avatar
Vertigo
Posts: 1184
Joined: Sun 09/12/2007 23:50
Location: Henderson, Auckland
Has thanked: 0
Been thanked: 12 times

Re: Squalls and Thunder, Western parts of both Islands 9-10 July

Unread post by Vertigo »

cowkop wrote:
David wrote:A beautiful day here, plenty of sunshine, no sign of showers. Maybe later...
Over here all hell just broke loose, literally!
Really strong winds heavy rain hail and lightning...what could you wish for?
Oww more thunder =D>
saw that lightning from glenfield, spotted by my eagle eyed girl
User avatar
03Stormchaser
Moderator
Posts: 4428
Joined: Tue 09/12/2003 12:11
Location: Prebbleton
Has thanked: 104 times
Been thanked: 184 times
Contact:

Re: General July Weather

Unread post by 03Stormchaser »

Nice photo here, or at least video grab judging by the quality

Image
www.stuff.co.nz
NZ Largest Storm Chasing Facebook Pagehttp://www.facebook.com/nzstormchasers
NZ Largest Storm Chase Community https://www.facebook.com/groups/NZStormchasersGroup
NZ Stormchasers TV https://www.youtube.com/@NZStormchasers
User avatar
NZstorm
Posts: 11333
Joined: Mon 10/03/2003 19:38
Location: Grey Lynn, Auckland
Has thanked: 342 times
Been thanked: 361 times

Re: Squalls and Thunder, Western parts of both Islands 9-10 July

Unread post by NZstorm »

Interesting to see the line of storms pop up over North Auckland this afternoon. I think afternoon heating led to the development. Does seem to have been a weak frontal boundary there also.

GFS shows this cold unstable spell lasting until Thursday with an ongoing severe squall risk in western districts including Auckland.
User avatar
03Stormchaser
Moderator
Posts: 4428
Joined: Tue 09/12/2003 12:11
Location: Prebbleton
Has thanked: 104 times
Been thanked: 184 times
Contact:

Re: Squalls and Thunder, Western parts of both Islands 9-10 July

Unread post by 03Stormchaser »

Photo of the Norwest arch today from just north of Darfield. (for some reason I didn't use the lens hood, resulting in sun flare) Could see the snow being blown off the tops.
Norwestarch.jpg
You do not have the required permissions to view the files attached to this post.
NZ Largest Storm Chasing Facebook Pagehttp://www.facebook.com/nzstormchasers
NZ Largest Storm Chase Community https://www.facebook.com/groups/NZStormchasersGroup
NZ Stormchasers TV https://www.youtube.com/@NZStormchasers
User avatar
Tornado Tim
Moderator
Posts: 4920
Joined: Sun 19/10/2008 17:17
Location: Raglan, Waikato / Hillcrest, Hamilton
Has thanked: 102 times
Been thanked: 202 times
Contact:

Re: Squalls and Thunder, Western parts of both Islands 9-10 July

Unread post by Tornado Tim »

Metservice has issed a nice blog post about the Kapiti Tornado and about the "winter storm" in general:
http://blog.metservice.com/2011/07/a-winter-storm/
NZAPStrike.net - NZ Aus Pacific Strike Network
Manukau heads obs
Posts: 12305
Joined: Mon 10/03/2003 16:30
Location: West Coast Road, Manukau Peninsula, North Island
Has thanked: 0
Been thanked: 0
Contact:

Re: Squalls and Thunder, Western parts of both Islands 9-10 July

Unread post by Manukau heads obs »

thats a very detailed blog, nice :)
Image
Brian Hamilton, weather enthusiast. My weather dataEmail: [email protected]
User avatar
Tornado Tim
Moderator
Posts: 4920
Joined: Sun 19/10/2008 17:17
Location: Raglan, Waikato / Hillcrest, Hamilton
Has thanked: 102 times
Been thanked: 202 times
Contact:

Re: Squalls and Thunder, Western parts of both Islands 9-10 July

Unread post by Tornado Tim »

The Cold Front on the SI west coast is very active, lots of lightning being picked up by the NZ Bolteks :)
You do not have the required permissions to view the files attached to this post.
NZAPStrike.net - NZ Aus Pacific Strike Network
User avatar
Dale
Posts: 1070
Joined: Sun 27/07/2008 08:59
Location: Greymouth - Feral Coast.. NZ
Has thanked: 0
Been thanked: 0

Re: Squalls and Thunder, Western parts of both Islands 9-10 July

Unread post by Dale »

After a break of a couple of hours, the hailsqualls have returned.. this time, they have bought some friends!
Cameron M
Posts: 16
Joined: Thu 14/08/2008 20:32
Location: Havelock, Marlborough Sounds
Has thanked: 0
Been thanked: 0

Re: Squalls and Thunder, Western parts of both Islands 9-10 July

Unread post by Cameron M »

Had a couple flashes of lightning and rumbles of thunder here a few moments a go.
Thunder
Posts: 2068
Joined: Wed 12/03/2003 19:47
Location: Mt Somers
Has thanked: 19 times
Been thanked: 41 times

Re: Squalls and Thunder, Western parts of both Islands 9-10 July

Unread post by Thunder »

Very interesting weather up north! Man must admit to being slightly distracted the past few days but great to have a read on here.

Aaron
Image
Aaron Wilkinson
Locked