a break in the Westerlies

Manukau heads obs · Sat 15/10/2005 07:32

there must have been better cold air above/more instability from waiuku/pukekohe south yesterday, better than areas further north...i.e just over the waikato only...as that puke/waiuku CB did not get any heating of the surface to trigger it off, as there was cloud and rain there early morning and neer did clear properly from that...but it was the influx from areas further north where the sun was shining, getting uplift from the port waikato hills and the huna ranges, etc....but the same thing was happenign on the waitkekeres, but it never fired up to such an extent, so the instability must be and an be quite defined (the upper level winds were quite light (my all day web cam movie showed that

)

NZstorm · Unread post by **NZstorm** » Sat 15/10/2005 08:11

Yes, there was something about the conditions over Puke as thats were the best convection occured. That was a good looking storm for a while.

Those cb's over northern Waikato in the early evening turned thundery, but too late in the day to come to much.

As for today, doesn't look as interesting. Some t/cu will bubble up with isolated afternoon showers from low topped cb.

spwill · Unread post by **spwill** » Sat 15/10/2005 10:33

Looked to be numerous Cb over Waikato yesterday afternoon but the Cb on the Northern fringe picked up more heat as skies in the Ak area cleared.

squid · Unread post by **squid** » Sat 15/10/2005 11:45

nice convection going off to my east north and south i hope that the seabreeze doesn't blow it away when it arrives already hotter that what it was yesterday yesterday max was 21C 23c already today and it is only 11 45am bases are turning very dark will be interesting to see what happens all this going on despite the high cloud that is around

Manukau heads obs · Sat 15/10/2005 14:16

despite the high cloud that is around

that has dampened things a bit i think
a bit of a shower has developed of the waitakeres now..

NZstorm · Unread post by **NZstorm** » Sat 15/10/2005 15:12

Looks to be a sea breeze convergence zone with showers through the west. As I indicated earlier, low topped cb's. Midday sounding indicates tops to 3500m possible.

Fine day in Auckland with 19C. [/quote]

Manukau heads obs · Sat 15/10/2005 18:30

just been reading up on your usa storm chase stuff you have put together on your web site steven
very very good!

http://www.thunderstorm.co.nz/USA%202005%20Reports.htm

NZstorm · Unread post by **NZstorm** » Sat 15/10/2005 18:53

Cheers Brian. Can't wait for 2006 season. I want to get some photos/video of a Midwest Tornado.

I have put a report up the tornado this week in Auckland. Unfortunately the resolution of the photos look too low. Will have to change that when I get a chance.

http://www.thunderstorm.co.nz/auckland_tornado.htm

Manukau heads obs · Sat 15/10/2005 19:01

i should be able to join you this time

squid · Unread post by **squid** » Sat 15/10/2005 20:15

yer stupid high cloud grr came over and slowed things down grr however a convergence zone formed but the stupid seabreeze pushed it east grr again better joy 2morow

NZ Thunderstorm Soc · Sat 15/10/2005 21:29

JohnGaul
NZTS

Good chance of inland thunderstorms going up tomorrow

Storm Struck · Unread post by **Storm Struck** » Sat 15/10/2005 23:37

Time to bring back out the Colourful number thunder prediction scale JOHN what ya think for tomorrow?.

Cheers
JASON.

squid · Unread post by **squid** » Sun 16/10/2005 08:56

i reckon that you got a good chance of some action down there in th esouth island just for a change today

up here we ended up having 2 hours if light rain from yesterdays heating between 9pm and 11pm lastnight the last of the high cloud is moving away now yay and the fog is clearing so here we go hopefully the last 5 nights the sandflys have been terrible with the icreased humdity a fiar bit of shower activity around on the 7am radar already it will be interesting to see what happends 2day

Manukau heads obs · Sun 16/10/2005 09:16

we have a light SWer here this morning.,,,,so a no go for us here today..
there was some rain overnight, but that is moving off to the east now..

spwill · Unread post by **spwill** » Sun 16/10/2005 09:43

Winds are light so afternoon sea breeze convergence looks likely somewhere.
More sunshine today and with the moisture still in the air there should be some local afternoon showers about.

Manukau heads obs · Sun 16/10/2005 10:14

could be...especialy to the east more....
will have to wait and see....as the swer flow is very ight
clear blue skies out here on the west...

squid · Unread post by **squid** » Sun 16/10/2005 11:02

alot of convection going off atm with some towering cu light winds and sticky noticed the clouds were moving in a northerly direction when i woke up not they are heading more in a westerly direction covergence very likely looks like it is fairly unstable up here heavy showers on the cards maby a few storms aswell looking much better than yesterday and i doubt wether there would be a repeat of yesterday when the high cloud rolled in looks like that has gone only a few thin wisps passing by a bit of low cloud aswell but that is buring off

update heavy shower to my NW and a very dark cloud right overhead waiting to see what it is going to do

03Stormchaser · Unread post by **03Stormchaser** » Sun 16/10/2005 11:10

Squid, you must get a few good pics up there?? Havent seen many from ya!

squid · Unread post by **squid** » Sun 16/10/2005 15:11

i dont have a camera atm saving up for a really good one so that would be why you have not seem any pics to back up what i am saying... blah seabreeze done it again grr blew the convection away so a boring day here

anyone getting any action

Storm Struck · Unread post by **Storm Struck** » Sun 16/10/2005 15:26

Absoulutly no convection out there at all although there was some small Cumulus around BP earlier its just fine here NE nothing but Mares tails and blue sky around now.
Bugger no Thunder

now for another long wait till next storm potential day

.
Cheers
JASON.

NOVEMBER AND DECEMBER YOU BETTER BE STORMY MONTHS

.

spwill · Unread post by **spwill** » Sun 16/10/2005 15:44

Fine and dry here, some short lived Cu towers around today mostly out east.
Can see a weak Cb has formed SE of here, perhaps Kaimai Ranges.

Just took this photo of local Cu.

NZ Thunderstorm Soc · Sun 16/10/2005 17:33

Jasestrm wrote:Absoulutly no convection out there at all although there was some small Cumulus around BP earlier its just fine here NE nothing but Mares tails and blue sky around now.
Bugger no Thunder now for another long wait till next storm potential day .
Cheers
JASON.

NOVEMBER AND DECEMBER YOU BETTER BE STORMY MONTHS .

Yes Jase, I saw some pileus development of top of those weak Cu forms from West Melton, just before the return to the Nor-easterly.
After the Ne took hold, the Cu all dissipated, so that buggered my thunderstorm theory for today.
Mind you the barometer had climbed overnight.
Any way, I don't want to see damaging hailstorms over Canterbury especially this time of year, with our trees, the young fruit trees coming on
Maybe later in the season?

spwill · Unread post by **spwill** » Sun 16/10/2005 18:53

I saw some pileus development of top of those weak Cu forms from West Melton, just before the return to the Nor-easterly.

Perhaps some pileus over this Cu this morning.

NZstorm · Unread post by **NZstorm** » Sun 16/10/2005 19:16

Yes, that is pileus spwill. Pileus forms when a cumulus tower hits the stable layer, and moist air rises over the cumulus top. So pileus is something like an oregraphic cloud and also a sign of a stable layer.

A lack of moisture across NZ today, meant thunderstorms could not develop.

Thursday/Friday look possible thunderdays in the north.

Manukau heads obs · Sun 16/10/2005 19:25

that cb way off the SE, maybe kaimas way, is getting to be a good height now