Heavy rain / gales deepening low 17/18 Dec

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Cyclone Tracy
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Re: General December Weather

Unread post by Cyclone Tracy »

Individual models are starting to get spooked for next week......Icon ends up bombing a 964 hPa mid latitude cyclone off Dunedin on the 00Z run. Considering this German model has spanked EC & GFS on SI systems for December so far, this scenario probably can't be ruled out just yet :smile: but for now it's still just entertainment value with 150 hours to go. The upper low next week will be calling the shots, lots of upgrades and downgrades across NZ in the next few days I'm tipping.
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Re: General December Weather

Unread post by Bradley »

EC going for 15cm of snow for Springfield next Saturday with a bomb east coast low and a good feed of polar air, somehow I think snow to 400m might be a tad over the top though lol
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Re: General December Weather

Unread post by NZstorm »

GFS showing 50mm for Auckland from the system early week. I am thinking 20mm more realistic.
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Re: General December Weather

Unread post by tgsnoopy »

It's still way early, but I am getting a lil nervous about Tuesday next week. I'm going to bring a mobile in from Matakana Island and won't be able to get back easily should rainfall rates get high enough to flood us. Will be watching this with concern as it develops.
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Re: General December Weather

Unread post by NZstorm »

Razor wrote: Sun 15/12/2019 08:13 But gutted about timing of this next system, we have won free tickets to the Auckland v Canterbury cricket match on Tuesday, my wee lad is really looking forward to it. Ah well
Canterbury will feel the temperature drop on Tuesday, could be only 12C in the afternoon and a wet day.

And we could end up with a big squall line in Auckland, not storms, just some big gusts to bring a few trees down.
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Re: General December Weather

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NZstorm wrote: Sun 15/12/2019 08:58
Razor wrote: Sun 15/12/2019 08:13 But gutted about timing of this next system, we have won free tickets to the Auckland v Canterbury cricket match on Tuesday, my wee lad is really looking forward to it. Ah well
Canterbury will feel the temperature drop on Tuesday, could be only 12C in the afternoon and a wet day.

And we could end up with a big squall line in Auckland, not storms, just some big gusts to bring a few trees down.
will the squall line be thundery? I just want to know. cause its been a while since we last had a good thunderstorm.
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Heavy rain / gales deepening low 17/18 Dec

Unread post by Razor »

New topic as the country looks to be getting a drenching, and some gales to kick in later in the east

Keep an eye on the Rangitata today folks. Already been 60mm up in the headwaters and the flood protection works are very fragile.
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Re: Heavy rain / gales deepening low 17/18 Dec

Unread post by Richard »

Having a break between periods of rain, had a nice wee drop of 7mm so far with another band coming down later this afternoon. Then tomorrow looks a bit promising for more than just extra rain in the later afternoon, maybe, its now that time Amuri plains start to supply good land heating. Friday has been consistently looking promising also, by that's not for this thread.
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Re: Heavy rain / gales deepening low 17/18 Dec

Unread post by NZ Thunderstorm Soc »

Rain easing from this event here with 25mm so far.
Sun trying to 'pop out'
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Re: Heavy rain / gales deepening low 17/18 Dec

Unread post by Razor »

Certainly windier here, could be an interesting evening as the low winds up
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Re: Heavy rain / gales deepening low 17/18 Dec

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20mm here an 10 deg
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Re: Heavy rain / gales deepening low 17/18 Dec

Unread post by Razor »

Looks like the low is starting to do its thing, looks more vigorous through mid Canterbury at present. Metservice have upped the moisture prediction for the evening a nudge
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Re: Heavy rain / gales deepening low 17/18 Dec

Unread post by NZ Thunderstorm Soc »

Razor wrote: Tue 17/12/2019 21:23 Looks like the low is starting to do its thing, looks more vigorous through mid Canterbury at present. Metservice have upped the moisture prediction for the evening a nudge
Back to rain here now, looks interesting on the radar.
Calm but rather cool. 9.5C at 10pm.
Nice in front of the fire :smile:
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Re: Heavy rain / gales deepening low 17/18 Dec

Unread post by Chris W »

Blustery late evening here in Lyttelton.
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Re: Heavy rain / gales deepening low 17/18 Dec

Unread post by Razor »

Having wind and rain like we haven't seen in our short two years of Halswell so far
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Re: Heavy rain / gales deepening low 17/18 Dec

Unread post by Richard »

19.6mm from this system so far,very handy.
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Re: Heavy rain / gales deepening low 17/18 Dec

Unread post by Razor »

33mm for us over the event, still raining too
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Re: Heavy rain / gales deepening low 17/18 Dec

Unread post by Chris W »

Moderate risk of thunder up the Canterbury coast from Amberley today, but I'm not seeing quite why or any sign of anything happening from radar/IR satellite. Haven't done the window test though.

Friday looks interesting.
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Re: Heavy rain / gales deepening low 17/18 Dec

Unread post by Richard »

Just starting to get some big drops of rain
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Re: Heavy rain / gales deepening low 17/18 Dec

Unread post by Richard »

Now heavy hailing, fascinating how this current convergence line is developing, thunder could be heard at any moment
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Re: Heavy rain / gales deepening low 17/18 Dec

Unread post by NZ Thunderstorm Soc »

Just come back from Ashburton.
Fresh snow along the foothills.
Lots of Cu around with Cu humulus producing the odd rain shower but gradually clearing away later this afternoon.
SW winds gradually dying out.
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Re: Heavy rain / gales deepening low 17/18 Dec

Unread post by Richard »

yes, just had thunder close by
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