Stormy period 20th, 21st and 22nd Dec

Skywatcher · Unread post by **Skywatcher** » Sat 22/12/2018 18:07

Heavier rain moving in now peaking at 22mm/h. Couldn't see any lightning with all the low cloud moving in from the NE and SW at the same time.

EDIT: just peaked at 112mm/h !

03Stormchaser · Unread post by **03Stormchaser** » Sat 22/12/2018 18:11

Heard it as well, radar didn't indicate anything associated with what could have caused it locally. MS seem to plot it closer to Oxford than chch.

Chris W · Unread post by **Chris W** » Sat 22/12/2018 18:14

There’s a purple line developing on the radar, embedded in the rain, might clip town.

Richard · Unread post by **Richard** » Sat 22/12/2018 18:20

I think we might get clipped by the front moving NE

melja · Unread post by **melja** » Sat 22/12/2018 18:27

Some extremely heavy rain here, lawn,drive and road all overflowing haha

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Chris W · Unread post by **Chris W** » Sat 22/12/2018 18:29

Ripper of a peal of thunder there.

melja · Unread post by **melja** » Sat 22/12/2018 18:33

Long 20sec thunder peeling off all round here.
15mm in the last 20min
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Richard · Unread post by **Richard** » Sat 22/12/2018 18:41

Incoming storm

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NZ Thunderstorm Soc · Sat 22/12/2018 18:44

Good luck to you guys up there getting thunder, not the pop corn variety that Tony mentioned

NZ Thunderstorm Soc · Sat 22/12/2018 18:46

Chris W wrote: ↑Sat 22/12/2018 18:29 Ripper of a peal of thunder there.

Was there a 'dump' to it?

Chris W · Unread post by **Chris W** » Sat 22/12/2018 18:47

NZ Thunderstorm Soc wrote: ↑Sat 22/12/2018 18:46
Chris W wrote: ↑Sat 22/12/2018 18:29 Ripper of a peal of thunder there.
Was there a 'dump' to it?

Hard to say, not sure what that would sound like! I don’t think so

Thunder081 · Unread post by **Thunder081** » Sat 22/12/2018 18:53

NZ Thunderstorm Soc wrote: ↑Sat 22/12/2018 17:36 All over bar the shouting down here.Cold. might have to light the fire tonight?
"Clagg" with upper level and lower cloud cover, although the rain has stopped thankgoodness.
More sunshine is needed down here

Does clagg mean boring weather?

Dean. · Unread post by **Dean.** » Sat 22/12/2018 19:05

A non event here...looked promising with distant thunder until the 'clagg' rolled in and now in our normal rainy low cloud cold summers evening.

Weather looks promising from Sunday afternoon onwards...Metservice showing a southwest on Wednesday with showers with GFS showing a fine settled day.

Richard · Unread post by **Richard** » Sat 22/12/2018 19:26

Turned out a non event day here also, that despite it looking threatening at about 7.00

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.

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NZ Thunderstorm Soc · Sat 22/12/2018 19:33

Thunder081 wrote: ↑Sat 22/12/2018 18:53

Does clagg mean boring weather?

YES. It's a term I devised for overcast conditions, where the sky is a persistent 8/8 grey cloud cover, especially low cloud cover and a dull day resulting from no sunshine, which persists without a return to the sun shining again .

mikestormchaser · Unread post by **mikestormchaser** » Sat 22/12/2018 19:39

We drove down to ashburton and waited around there for awhile, things did look interesting.
Chaser converged with aaron and went with him.
Did get a few close strikes on video but there was to much rain around to get anything decent.
Very much embedded in the rain band, not the isolated thunderstorms I would of thought to be

03Stormchaser · Unread post by **03Stormchaser** » Sat 22/12/2018 21:12

Chased between Hororata and Rakaia. Very heavy rain at times no hail. Witnessed a number of cgs, one within 100m of me when i was driving.

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Convergence that formed well in front of the change

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Storm moving from the foothills over Hororata

Chris W · Unread post by **Chris W** » Sat 22/12/2018 21:23

Plenty of convergence still going on in the city, really interesting to see the heavy rain bouncing around on the radar. Safe to say I won't have to worry about watering the veges for another day!

03Stormchaser · Unread post by **03Stormchaser** » Sat 22/12/2018 21:33

Chris W wrote: ↑Sat 22/12/2018 21:23 Plenty of convergence still going on in the city, really interesting to see the heavy rain bouncing around on the radar. Safe to say I won't have to worry about watering the veges for another day!

I haven't had to water anything at all this spring / summer. Very unlike last year!

Storm Struck · Unread post by **Storm Struck** » Sun 23/12/2018 10:07

It seems topographical lift got the severe cell near Rangiora rotating abit yesterday, going by a few photos ive seen it had that pancake look on the top to suggest supercell characteristics.
Whether it met the criteria is another thing but it must have been close given the rain was very torrential in some areas, the hail id say around 15mm from videos ive seen could have been bigger around waimak gorge going by the radars.
Took a drive to ashburton, then ended up in the Winchmore area Rakaia on an active cell with lots of lightning and a few close CGs.
Driving on through Methvan township the roads were like a torrent flash flooding everywhere and storm water drains boiling up from the road.
Also drove past a tree on the side of the road which looked to have been struck by lightning, branches on the ground and a fresh split trunk.
Clocked up a few ks but worth the chase.

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