Longwave trough and cold surge July 12th-21st

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Chris W
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Re: Longwave trough and cold surge July 12th-21st

Unread post by Chris W »

NZ Thunderstorm Soc wrote: Fri 19/07/2019 17:31
Chris W wrote: Fri 19/07/2019 11:24 Rain areas and intensities are changing every model run, any part of Canterbury/Otago could get a pasting or end up with nothing by the end of the weekend! I'll be in Geraldine, expecting wetness 0_o
Bring your Ukulele, as well as gumboots etc. :smile:

Haha, will do! I’m there to attend the festival.

Moderate chance rain warning out from MetService for much of Canterbury on Sunday, looks more likely inland.
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Re: Longwave trough and cold surge July 12th-21st

Unread post by Thunder081 »

Here's a cool timelapse of the southwesterly front approaching Wellington's south coast on wednesday 17th July.

Wellington southerly front timelapse: www.youtube.com/watch?v=MBl3hsuIg2Q
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Re: Longwave trough and cold surge July 12th-21st

Unread post by RODALCO »

Some wet hail and heavy rain in Triangle Road Massey right now.
Who put the LED's on the lightning arrestor ?
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Re: Longwave trough and cold surge July 12th-21st

Unread post by tornado »

RODALCO wrote: Sat 20/07/2019 17:27 Some wet hail and heavy rain in Triangle Road Massey right now.
hail? i will listen out for some
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Re: Longwave trough and cold surge July 12th-21st

Unread post by Cyclone Tracy »

Another 10mm today with brief downpours. 40mm for the thread sequence.

Low has now cut off south east of the Cook strait and heading south west. Cloud tops around -50c
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Re: Longwave trough and cold surge July 12th-21st

Unread post by Orion »

Heavy rain in the last few minutes at Orewa Beach, including some extra-heavy thuds on the roof that could well have been sploshy hail.
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Re: Longwave trough and cold surge July 12th-21st

Unread post by NZ Thunderstorm Soc »

Cyclone Tracy wrote: Sat 20/07/2019 19:39 Low has now cut off south east of the Cook strait and heading south west. Cloud tops around -50c
Yes. Heading our way. Back onto rain here from around 8pm.
Good for the Gumboots and Ukulele Fest :D
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Re: Longwave trough and cold surge July 12th-21st

Unread post by Richard »

Total of 44mm from this current low
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Re: Longwave trough and cold surge July 12th-21st

Unread post by Andy »

6mm here
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Re: Longwave trough and cold surge July 12th-21st

Unread post by Dean. »

53mm here since Friday pm
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Re: Longwave trough and cold surge July 12th-21st

Unread post by Chris W »

Confirmed, gumboots not needed at the festival... yesterday anyway! Last night and today is much wetter, but I'm now in Methven where it's just heavy drizzle. Warmer today as well, yesterday maxed at around 7C according to the car.
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Re: Longwave trough and cold surge July 12th-21st

Unread post by Dean. »

Freezing level lifted overnight, Mt Hutt saturated with rain on top of 40 plus cms of new snow
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Re: Longwave trough and cold surge July 12th-21st

Unread post by NZ Thunderstorm Soc »

46mm overnight.
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Re: Longwave trough and cold surge July 12th-21st

Unread post by Rogue »

Time-lapse of the southerly front that stalled near wellington and generated a few thunderstorms to the east, 18th July. Can see a few small funnel clouds trying to form

https://vimeo.com/349265710
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Re: Longwave trough and cold surge July 12th-21st

Unread post by Razor »

This system certainly teased skiers. Delivered reasonable snow to start with, then waterlogged it with rain and a much higher than expected freezing level. The worry now is clearing weather will turn that to icy slopes and load up a nasty avalanche risk down the line
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Re: Longwave trough and cold surge July 12th-21st

Unread post by harleyb »

151 mm all up for us at the bach in north Taranaki over the week. Everything saturated with a few small slips around the place. Must have been school holidays, huh. Cards and board games got a good workout. o_O
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