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Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 13:20
by NZstorm
Latest 00Z NZWP soundings shows unstable air to about 3000m, which explains the passing showers.

Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 14:09
by jamie
looking good for here this afternoon.

isolated strickes about the waikato at the moment

Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 14:12
by Tornado Tim
Lake Karipiro is under a black and white core, with some strikes coming out of it :)

Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 15:12
by Manukau heads obs
have sudden heavy rain episodes here in the eastern BOP
due to cold air with the easterly change undercutting the upper level warmer northerly...

Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 15:24
by spwill
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.

Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 15:30
by jamie
lightning is getting closer and just heard first thunder

Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 15:41
by jamie
Cracking thunder here. Good cell. Looks to be moving towards Hamilton.

Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 15:47
by Manukau heads obs
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...

Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 15:48
by dan
Yep can confirm very nice heavy shower and frequent thunder here.

Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 15:50
by bmo
have heard one rumble. Having showers every few minutes, some heavy.
Looks like Waikato is the place to be.

Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 15:52
by Tornado Tim
Very nice thunder here :)

Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 15:53
by dan
hail now!

Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 16:07
by jamie
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

Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 16:29
by David
No thunder here but didn't really expect it, winter is our thunder season here :)

Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 16:51
by Tornado Tim
Here are some pics of the storm that greeted Hamilton an the areas east:

Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 17:04
by GreggWard
Good pictures Tim. Which direction are they taken?

Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 17:05
by Tornado Tim
North West to North

Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 17:06
by CHCH Weather Chaser
Rotorua 41mm in the last 2 hours. Hamilton 18mm last hour.

Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 17:19
by jamie
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.

Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 17:37
by jamie
some photos i managed to snap today.

Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 18:06
by jamie
just got 10mm in 14 mins here.

Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 18:24
by spwill
A good rain maker this trough.
Nice photos :smile:

Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 18:36
by Tornado Tim
spwill wrote:A good rain maker this trough.
Boy isnt it! 24mm and going up at 26mm/hr atm and quite consistently too.

Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 19:22
by tich
Sharply contrasting temps in upper/central NI this afternoon between warm northwesterly and cool southerly change, no doubt a big reason for the storms.

Re: Thunderstorms- 16-17th December, North Island

Posted: Sat 17/12/2011 20:03
by Manukau heads obs
nice photos there jamie