Thunderstorms- 16-17th December, North Island

NZstorm · Unread post by **NZstorm** » Sat 17/12/2011 13:20

Latest 00Z NZWP soundings shows unstable air to about 3000m, which explains the passing showers.

jamie · Unread post by **jamie** » Sat 17/12/2011 14:09

looking good for here this afternoon.

isolated strickes about the waikato at the moment

Tornado Tim · Unread post by **Tornado Tim** » Sat 17/12/2011 14:12

Lake Karipiro is under a black and white core, with some strikes coming out of it

Manukau heads obs · Sat 17/12/2011 15:12

have sudden heavy rain episodes here in the eastern BOP
due to cold air with the easterly change undercutting the upper level warmer northerly...

spwill · Unread post by **spwill** » Sat 17/12/2011 15:24

A few heavy showers around Ak, I see any storm activity over Waikato has been very isolated. I think this cloudy showery weather is killing our thunder chance.

jamie · Unread post by **jamie** » Sat 17/12/2011 15:30

lightning is getting closer and just heard first thunder

jamie · Unread post by **jamie** » Sat 17/12/2011 15:41

Cracking thunder here. Good cell. Looks to be moving towards Hamilton.

Manukau heads obs · Sat 17/12/2011 15:47

cool
webcam from home shows blue skies and nice summer temperatures,with WSW wind
here in eastern BOP its overcast, raining, cool, and easterlies...big contrast...

dan · Unread post by **dan** » Sat 17/12/2011 15:48

Yep can confirm very nice heavy shower and frequent thunder here.

bmo · Unread post by **bmo** » Sat 17/12/2011 15:50

have heard one rumble. Having showers every few minutes, some heavy.
Looks like Waikato is the place to be.

Tornado Tim · Unread post by **Tornado Tim** » Sat 17/12/2011 15:52

Very nice thunder here

dan · Unread post by **dan** » Sat 17/12/2011 15:53

hail now!

jamie · Unread post by **jamie** » Sat 17/12/2011 16:07

dan wrote:hail now!

dam i thought it would have hail. i chose not to follow it into hamilton as its too hard to chase in a city. it only just missed us here by about 1km

David · Unread post by **David** » Sat 17/12/2011 16:29

No thunder here but didn't really expect it, winter is our thunder season here

Tornado Tim · Unread post by **Tornado Tim** » Sat 17/12/2011 16:51

Here are some pics of the storm that greeted Hamilton an the areas east:

GreggWard · Unread post by **GreggWard** » Sat 17/12/2011 17:04

Good pictures Tim. Which direction are they taken?

Tornado Tim · Unread post by **Tornado Tim** » Sat 17/12/2011 17:05

North West to North

CHCH Weather Chaser · Sat 17/12/2011 17:06

Rotorua 41mm in the last 2 hours. Hamilton 18mm last hour.

jamie · Unread post by **jamie** » Sat 17/12/2011 17:19

Did a small local chase. Got some torrential rain. Couldn't drive in it. Torrents of water running down the hills. Got some good structure. I'll post the photos soon.

jamie · Unread post by **jamie** » Sat 17/12/2011 17:37

some photos i managed to snap today.

jamie · Unread post by **jamie** » Sat 17/12/2011 18:06

just got 10mm in 14 mins here.

spwill · Unread post by **spwill** » Sat 17/12/2011 18:24

A good rain maker this trough.
Nice photos

Tornado Tim · Unread post by **Tornado Tim** » Sat 17/12/2011 18:36

spwill wrote:A good rain maker this trough.

Boy isnt it! 24mm and going up at 26mm/hr atm and quite consistently too.

tich · Unread post by **tich** » Sat 17/12/2011 19:22

Sharply contrasting temps in upper/central NI this afternoon between warm northwesterly and cool southerly change, no doubt a big reason for the storms.

Manukau heads obs · Sat 17/12/2011 20:03

nice photos there jamie

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Thunderstorms- 16-17th December, North Island

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