Cu Buildup

Archive of General Weather
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These topics are a read-only archive and may be subject to out-of-date information.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
Locked
User avatar
NZstorm
Posts: 11333
Joined: Mon 10/03/2003 19:38
Location: Grey Lynn, Auckland
Has thanked: 342 times
Been thanked: 361 times

Cu Buildup

Unread post by NZstorm »

Cuform buildup this morning over Auckland.

Image

The upper air sounding today indicates cloud tops to around 7000m
This cloud has glaciated into Cumulonimbus. Note the roll cloud at base.

Image
Roll cloud from the outflow. This roll cloud stretched right across Auckland.

Image

Image
A close up of the Pilues (Cap Cloud) ontop of the Cumulonimbus.
This cap formed within an upper stable layer around 7000m.

Surface winds light and variable, temperature 15C, humidity 90%.
Top
User avatar
Michael
Posts: 7210
Joined: Thu 27/03/2003 12:04
Location: Rainy Manurewa, Auckland - "City of Gales"
Has thanked: 0
Been thanked: 1 time
Contact:
Contact Michael

Unread post by Michael »

It was weird today the upper wind looked N most of the time then around 930am we got a surface SW then it died away again-I thought it would get up to gale force but then it died away again-looking at the isobars but then it looked like we got "the nomans land weather" between the 2 highs and the westerly was furthur south :)
Top
ScottyD
Posts: 248
Joined: Tue 10/06/2003 15:34
Location: Mission Heights, Auckland
Has thanked: 33 times
Been thanked: 29 times
Contact:
Contact ScottyD

Unread post by ScottyD »

I was up here in Albany, waiting for the thunderstorms to roll in, but they never eventuated. The rain radar looked promising, i could see big cbs to the south, but it all just fizzled out. The rain radar no longer showed any signs of activity and th cbs stayed south.
Top
User avatar
NZstorm
Posts: 11333
Joined: Mon 10/03/2003 19:38
Location: Grey Lynn, Auckland
Has thanked: 342 times
Been thanked: 361 times

Unread post by NZstorm »

There was the odd heavy shower about, including the north Shore up untill about 1.30pm and then the weather cleared. There was no thunder at Auckland but as you say, there was some quite large distant tops.

The next cold change(next week) will bring thunder.
Top
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:
Contact Manukau heads obs

Unread post by Manukau heads obs »

we had very close thunder here, and i recorded 10 or so lightning counts this morning as the squall line went through
Image
Brian Hamilton, weather enthusiast. My weather dataEmail: [email protected]
Top
User avatar
NZstorm
Posts: 11333
Joined: Mon 10/03/2003 19:38
Location: Grey Lynn, Auckland
Has thanked: 342 times
Been thanked: 361 times

Unread post by NZstorm »

Thanks for the report Brian,
The photos were taken from Western Springs looking into the southwest (in the direction of Manukau Heads).
Top
Locked

Return to “2003”