Tasman Low- Storms and Rain - 4th to 9th Nov

Manukau heads obs · Wed 06/11/2013 08:35

great looking CB's have been going up out over the sea to my west
one looked like an A bomb going off

Nev · Unread post by **Nev** » Wed 06/11/2013 09:12

Here's this morn's T-Storm Outlook update for today (much the same as yesterday's)…

MetService - Severe Thunderstorm Outlook

Valid to: Midnight Wednesday 6 Nov 2013
Issued at: 8:43am Wednesday 6 Nov 2013

A front extending eastnortheast from Waikato through the Bay of Plenty is expected to move slowly south today. Convergence associated with this front and sea breezes, along with an unstable atmosphere due to cold temperatures aloft is expected to trigger showers over much of the central and upper North Island.

There is a moderate risk of thunderstorms in the Bay of Plenty this morning.These storms could be accompanied by heavy rain and hail. There is also a risk of strong wind gusts and small tornadoes are possible.

There is a moderate risk of thunderstorms this afternoon from Waikato to the north of Taranaki, the central North Island high country and the Gisborne and Hawkes Bay ranges. These storms could be accompanied by heavy rain, strong wind gusts and hail.

A trough is expected to move south onto the far north of Northland this afternoon. There is a moderate risk of thunderstorms there with heavy rain and hail.

There is a low risk of thunderstorms with heavy rain and hail over the remainder of the central and northern North Island as indicated on the map.

Elsewhere, no thunderstorms expected.

MetService T-Storm Map - Is. Nov 6, 8.43am.png

jamie · Unread post by **jamie** » Wed 06/11/2013 09:23

Some punchy TCu to my NNW already.

jamie · Unread post by **jamie** » Wed 06/11/2013 10:24

That tcu now looks to be a weak Cb. The only thing on the radar is that cell close to you Brian (over the other side of the harbor inlet). So it must be that.

Tomorrows outlook looks better than todays.

spwill · Unread post by **spwill** » Wed 06/11/2013 10:26

Some towering Cu around and a low top Cb has formed over the Waitaks, photo.

Manukau heads obs · Wed 06/11/2013 10:39

yes, the actually formed over the black sand on the northern side of the entrance to the harbour..ie Whatipu
.that black sand heats up real fast

jamie · Unread post by **jamie** » Wed 06/11/2013 10:43

I wish the rain to my east would stop developing and let more sun light across the basin. Seems to be stationary and continually developing.

ben g · Unread post by **ben g** » Wed 06/11/2013 12:30

Really starting to build up now, pic looking towards Auckland from whangaparoa

ImageUploadedByTapatalk1383694245.743414.jpg

David · Unread post by **David** » Wed 06/11/2013 12:53

Light NE here vs a light SW at the airport, a few heavy showers will be bound to pop up somewhere...

NZstorm · Unread post by **NZstorm** » Wed 06/11/2013 12:57

Shower/weak cb has just developed over NW Auckland.

jamie · Unread post by **jamie** » Wed 06/11/2013 13:20

Not much sun here. Quite a dense lot of Cu floating about.

spwill · Unread post by **spwill** » Wed 06/11/2013 13:31

A convergence line across Auckland now with a few showers, some solid looking towering Cu.

seej · Unread post by **seej** » Wed 06/11/2013 13:43

Can I hear thunder...or is it just me?

seej · Unread post by **seej** » Wed 06/11/2013 13:44

nope def can hear thunder, constant!!

spwill · Unread post by **spwill** » Wed 06/11/2013 13:50

Yes, can hear thunder here out of the west.

GraemeWi · Unread post by **GraemeWi** » Wed 06/11/2013 13:51

Also some thunder on the north shore

seej · Unread post by **seej** » Wed 06/11/2013 13:54

oh stopped

...do you think it will fire up again?

NZstorm · Unread post by **NZstorm** » Wed 06/11/2013 14:02

Just saw lightning to w. Pulse storms by the looks given the weak shear.

jamie · Unread post by **jamie** » Wed 06/11/2013 14:12

Ignition point reached here. Sun out and bombs going off in the sky.

David · Unread post by **David** » Wed 06/11/2013 14:26

Rain rate getting as high as 120 mm/hr currently at Waitakere. http://waitakeres.nzweather.net.nz/index.htm

Fine and sunny in Howick

ben g · Unread post by **ben g** » Wed 06/11/2013 14:33

Fine and sunny with light easterly in orewa, looks like the cell in the kaipara is lining us up, fingers crossed, looking very impressive

ben g · Unread post by **ben g** » Wed 06/11/2013 14:43

ImageUploadedByTapatalk1383702148.148371.jpg

140 pm radar, loud thunder in orewa

jamie · Unread post by **jamie** » Wed 06/11/2013 14:59

I see MS have updated their outlook accordingly at 2.20 for severe storms over Auckland and north Waikato

Tornado Tim · Unread post by **Tornado Tim** » Wed 06/11/2013 15:11

jamie wrote:I see MS have updated their outlook accordingly at 2.20 for severe storms over Auckland and north Waikato

Yup including Hamilton too

Metservice wrote: Issued by MetService at 02:15 pm Wednesday 06 November 2013
Valid until 08:00 pm Wednesday 06 November 2013
This watch affects people in the following weather forecast districts:
Auckland
Waikato
Waitomo

Thunderstorms are expected to develop in Auckland, Waikato and Waitomo this afternoon. There is a risk that some of these could be slow moving and accompanied by downpours, 20 to 35mm/hr and hail.

Rainfall of this intensity can cause flash flooding, especially about low-lying areas such as streams, rivers or narrow valleys, and may also lead to slips. Driving conditions will also be hazardous with surface flooding and poor visibility in heavy rain.

Note: A Severe Thunderstorm Watch means conditions are favourable for severe thunderstorms in and close to the watch area. People in these areas should be on the lookout for threatening weather conditions and listen for possible Severe Thunderstorm Warnings.

Issued by: Hordur Thordarson

This watch will be updated by: 08:00 pm Wednesday 06 November 2013

ben g · Unread post by **ben g** » Wed 06/11/2013 15:22

Near continous thunder now, even saw a rotating base

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