T-Storms for Central-East N.I. - Nov 14

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These topics are a read-only archive and may be subject to out-of-date information.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

Re: T-Storms for Central-East N.I. - Nov 14

Unread post by NZstorm »

it was the very cold upper pool of air coinciding with a surface trough and convergence (forcing) that was the key...surely....
yes, two air streams running into each other, so stronger than the sea breeze type convergence. The storms were not supercells though.
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: T-Storms for Central-East N.I. - Nov 14

Unread post by Manukau heads obs »

although even with convergence forcing, as soon as the heating eased and the upper cold pool moved off, boy did things fizzle fast...like a sea breeze convergence does...
an interesting day...been a while !
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: T-Storms for Central-East N.I. - Nov 14

Unread post by Tornado Tim »

Manukau heads obs wrote:although even with convergence forcing, as soon as the heating eased and the upper cold pool moved off, boy did things fizzle fast...
Yes SFC temps dropped off quite fast,it was 21°C or so In Tokoroa before the trough came through then it dropped to 15°C after that.
Surprisingly it cleared quite quickly there, heaps of orphaned anvils around 6.30PM when i decided to head back.
NZAPStrike.net - NZ Aus Pacific Strike Network
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: T-Storms for Central-East N.I. - Nov 14

Unread post by NZstorm »

Also, the cold upper air and upper level divergence was clearing out by 6pm.
Locked