Moist and unstable week starting Jan 27th

NZstorm · Unread post by **NZstorm** » Sun 31/01/2016 13:34

Cb just to s and se of Auckland looks active.

David · Unread post by **David** » Sun 31/01/2016 13:38

To the SE, growing fast

littleheaven · Unread post by **littleheaven** » Sun 31/01/2016 13:42

Looking SSE from Glenfield.

jamie · Unread post by **jamie** » Sun 31/01/2016 13:54

The cell over Maramarua is active. The one over Karaka is not active....yet.

I might head north now. Just got home from a party.

ScottyD · Unread post by **ScottyD** » Sun 31/01/2016 14:06

Severe thunderstorm warnings just issued by Metservice.

GraemeWi · Unread post by **GraemeWi** » Sun 31/01/2016 14:07

Thunder heard in Swanson from the cell to the West

David · Unread post by **David** » Sun 31/01/2016 14:08

Can hear thunder south of here. Big anvil with slight mammatus

Orion · Unread post by **Orion** » Sun 31/01/2016 14:14

http://cdem.co/viewer.jsp?alertId=116 which reads
The MetService has issued a Severe Thunderstorm Warning which affects the following local government areas:
AUCKLAND CITY, WAIKATO and FRANKLIN.
At 01:45 pm, MetService weather radar detected severe thunderstorms near PUKEKOHE, DRURY, BOMBAY, ARARIMU, POKENO, MARAMARUA, MANGATAWHIRI and MERCER.
These severe thunderstorms are moving towards the northnorthwest, and are expected to lie near PAPAKURA, HUNUA, MANUKAU, DRURY, ARARIMU, POKENO, MARAMARUA, BOMBAY, MANGATAWHIRI, MERCER and ARARIMU at 02:15 pm and near AUCKLAND, PAPAKURA, HOWICK, HUNUA, MANUKAU, SOUTH AUCKLAND, POKENO, HUNUA, DRURY, BOMBAY, MANGATAWHIRI, THE HUNUA RANGES and ARARIMU at 02:45 pm.
These thunderstorms are expected to be accompanied by very heavy rain and large hail.
Very heavy rain can cause surface and/or flash flooding about streams, gullies and urban areas, and make driving conditions extremely hazardous.
Large hail can cause significant damage to crops, orchards, vines, glasshouses and vehicles, and make driving conditions hazardous.
Where thunderstorms form, surface flooding is likely and localised flooding of streams.
Small localised tornadoes can be associated with severe thunderstorms.

David · Unread post by **David** » Sun 31/01/2016 14:24

The rain radar showing a very intense cell around Pukekohe. Most intense I've seen on the radar for a long time

Orion · Unread post by **Orion** » Sun 31/01/2016 14:35

There's a Severe Thunderstorm Warning for the Far North, Kaitaia area, also.

David · Unread post by **David** » Sun 31/01/2016 14:36

Mammatus now spreading over Howick, distant thunder continues

Willoughby · Unread post by **Willoughby** » Sun 31/01/2016 14:38

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Very decent cluster of strikes the last hour between Papakura and Tuakau.

Glad any storms have avoided Eden Park!

littleheaven · Unread post by **littleheaven** » Sun 31/01/2016 14:46

Looking really unstable in all visible directions now. I can hear thunder from the SW.

Updated to add photo looking south from Glenfield.

Brassnz · Unread post by **Brassnz** » Sun 31/01/2016 14:47

Massive thunder out here in last ten minutes. And across the Manukau Harbour through the rain I can see Manukau and Puketutu Island bathed in sunshine.

Willoughby · Unread post by **Willoughby** » Sun 31/01/2016 15:09

Cloud-to-ground strikes picking up from cell west of Horotiu now too.

Brassnz · Unread post by **Brassnz** » Sun 31/01/2016 15:22

Non-stop thunder here now, seems to be approaching from the SE. Impressive.

Tornado Tim · Unread post by **Tornado Tim** » Sun 31/01/2016 15:33

Me and Jamie just SW of Waikuku, heavy rain. Quite Heavy Rain. Intercepted the Severe warned cell through Bombay. Intense rain which caused chaos on the road

jamie · Unread post by **jamie** » Sun 31/01/2016 16:58

On the cell between Hamilton and morrinsville. Amazing structure!

jamie · Unread post by **jamie** » Sun 31/01/2016 17:10

This looks nasty in behind

ImageUploadedByTapatalk1454213412.358621.jpg

jamie · Unread post by **jamie** » Sun 31/01/2016 17:35

Just let it run over me. Easy 50km winds. Probably a lot more and some of the heaviest rain I've ever seen

Tornado Tim · Unread post by **Tornado Tim** » Sun 31/01/2016 17:42

Yup caught the same cells as you jamie going back south.

NZstorm · Unread post by **NZstorm** » Sun 31/01/2016 18:12

Great photo Jamie.

An interesting convection day with cells producing heaps of thunder. And while its been dry in central Auckland just catching a shower now to disrupt the cricket.

jamie · Unread post by **jamie** » Sun 31/01/2016 18:56

Civil defence Waikato Facebook page has some great photos!

NZstorm · Unread post by **NZstorm** » Sun 31/01/2016 19:02

jamie wrote:Civil defence Waikato Facebook page has some great photos!

yes, nice gust front pic on that page. Outflow boundary.

https://www.facebook.com/WaikatoCivilDe ... =3&theater

jamie · Unread post by **jamie** » Sun 31/01/2016 19:50

I see Brian had a peak rainfall intensity of 8.82mm/min. That's crazy stuff!

Some totals i have heard.
40mm in very short period and with hail at Waiau Pa
65mm in 45mins at Patumahoe

40mm between Hamilton and Morrinsville with branches down (from that cell i was on)

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