Possible Snow event North Canterbury 17-19th June

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Bradley
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Re: Possible Snow event North Canterbury 17-19th June

Unread post by Bradley »

Razor wrote: Thu 18/06/2020 07:24
Bradley wrote: Wed 17/06/2020 21:44

Don’t take any notice of the 48 hour guidance rainfall figures when it suddenly jumps up massively like that, it’s happened many times before in moderate rain events and will be corrected tomorrow morning
It's actually ramped up. Over 100mm now
It will be corrected at some point today, it needs a human touch lol
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Re: Possible Snow event North Canterbury 17-19th June

Unread post by Razor »

Bradley wrote: Thu 18/06/2020 07:48
Razor wrote: Thu 18/06/2020 07:24

It's actually ramped up. Over 100mm now
It will be corrected at some point today, it needs a human touch lol
If that's true on the day of a forecast then someone needs firing at Metservice for letting such poor information stay online

Given how steadily its falling right now I believe a warning is appropriate
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Re: Possible Snow event North Canterbury 17-19th June

Unread post by Richard »

We do have a developing low above us so it is possible we could get near to 80-100mm, We are long over due for such an event. 100+mm events were more common for Canterbury during the later half of last century than this century.
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Re: Possible Snow event North Canterbury 17-19th June

Unread post by Razor »

Richard wrote: Thu 18/06/2020 09:01 We do have a developing low above us so it is possible we could get near to 80-100mm, We are long over due for such an event. 100+mm events were more common for Canterbury during the later half of last century than this century.
Interesting as that's the sum total of the rain there in the past 6 months!
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Re: Possible Snow event North Canterbury 17-19th June

Unread post by Razor »

Torrential here now
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Re: Possible Snow event North Canterbury 17-19th June

Unread post by Bradley »

Razor wrote: Thu 18/06/2020 08:54
Bradley wrote: Thu 18/06/2020 07:48

It will be corrected at some point today, it needs a human touch lol
If that's true on the day of a forecast then someone needs firing at Metservice for letting such poor information stay online

Given how steadily its falling right now I believe a warning is appropriate
If they genuinely believed Christchurch would be getting 100mm there would have been a warning put out by now or at least a watch - it's a computer error that needs human intervention to temper the results being spat out by obviously a rogue computer model run...
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Re: Possible Snow event North Canterbury 17-19th June

Unread post by Bradley »

Razor wrote: Thu 18/06/2020 08:54
Bradley wrote: Thu 18/06/2020 07:48

It will be corrected at some point today, it needs a human touch lol
If that's true on the day of a forecast then someone needs firing at Metservice for letting such poor information stay online

Given how steadily its falling right now I believe a warning is appropriate
At the end of the day they ARE only forecasting another 10-15mm today in Christchurch, the data you are referring to is tomorrow so let's all just stay calm and wait for the Metservice to do it's thing :lol:
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Re: Possible Snow event North Canterbury 17-19th June

Unread post by Razor »

Bradley wrote: At the end of the day they ARE only forecasting another 10-15mm today in Christchurch, the data you are referring to is tomorrow so let's all just stay calm and wait for the Metservice to do it's thing :lol:
We had 10mm in the last hour here in Halswell and its showing no sign of letting up. Great to see real rain!
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Re: Possible Snow event North Canterbury 17-19th June

Unread post by mikestormchaser »

Rain/ showers most of day here, rain looks like it might come back later overnight for a time.
Might get 50/60mm
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Re: Possible Snow event North Canterbury 17-19th June

Unread post by Chris W »

Warning out for Kaikoura/Marlborough coast for 100-150mm from 4pm today to 11am tomorrow - I'm in Kaikoura until Saturday. It's been raining steadily but moderately this morning so far, after the southerly came through overnight.
Last edited by Chris W on Thu 18/06/2020 10:49, edited 1 time in total.
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Re: Possible Snow event North Canterbury 17-19th June

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Been clear here in town for a while and eastern suburbs have had very little rain at all, looking at the radar it looks to be clearing out completely over Christchurch in the next hour or two
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Re: Possible Snow event North Canterbury 17-19th June

Unread post by Chris W »

Heavy rain now in Kaikoura, this is us for the next 24 hours :)

Edit - backed off a little to moderate rain now, but it'll pick up again.
Last edited by Chris W on Thu 18/06/2020 11:42, edited 1 time in total.
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Re: Possible Snow event North Canterbury 17-19th June

Unread post by Razor »

Bradley wrote: Thu 18/06/2020 10:46 Been clear here in town for a while and eastern suburbs have had very little rain at all, looking at the radar it looks to be clearing out completely over Christchurch in the next hour or two
Still raining steadily here no let up
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Re: Possible Snow event North Canterbury 17-19th June

Unread post by Storm Struck »

Strong gusty SE winds here in Nelson, bordering on gale force at times and seems to be gradually strengthening as the flow gets established.
Just occasional light showers also.
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Re: Possible Snow event North Canterbury 17-19th June

Unread post by snowchaser01 »

Concerned about this potential rainfall in North Canterbury and Christchurch tonight and tomorrow.. if I'm honest I cant see much getting anywhere past Amberley.
In saying that if 60mm falls in the city in the space of 12 hours so.. would cause issues.
Last edited by snowchaser01 on Thu 18/06/2020 14:55, edited 1 time in total.
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Re: Possible Snow event North Canterbury 17-19th June

Unread post by Razor »

Yup....little dilution of the 'computer projections' ... a very wet night ahead if so
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Re: Possible Snow event North Canterbury 17-19th June

Unread post by snowchaser01 »

Razor wrote: Thu 18/06/2020 14:21 Yup....little dilution of the 'computer projections' ... a very wet night ahead if so
Can't see much sign of it on the radar currently...
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Re: Possible Snow event North Canterbury 17-19th June

Unread post by snowstormwatcher »

A welcome 13mm of Rain here from this event.
Snow settled down to around 500-600m on the hills
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Re: Possible Snow event North Canterbury 17-19th June

Unread post by Chris W »

Moderate rain continues in Kaikoura, but the heaviest falls are projected for this evening into the morning. Can't see the mountains at all.
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Re: Possible Snow event North Canterbury 17-19th June

Unread post by snowchaser01 »

Chris W wrote: Thu 18/06/2020 16:12 Moderate rain continues in Kaikoura, but the heaviest falls are projected for this evening into the morning. Can't see the mountains at all.
Looking at current radar images, I cannot fathom how the projected rainfall can occur from what is currently on radar, and just off the coast...
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Re: Possible Snow event North Canterbury 17-19th June

Unread post by Chris W »

snowchaser01 wrote: Thu 18/06/2020 16:58
Chris W wrote: Thu 18/06/2020 16:12 Moderate rain continues in Kaikoura, but the heaviest falls are projected for this evening into the morning. Can't see the mountains at all.
Looking at current radar images, I cannot fathom how the projected rainfall can occur from what is currently on radar, and just off the coast...
It isn't picking up the rain here that well, we've rained reasonably solidly today here though we've just hit a slight pause. Heavier stuff now approaching via the central North Island and Wellington, but let's see if it eventuates as the models are predicting.
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Re: Possible Snow event North Canterbury 17-19th June

Unread post by snowchaser01 »

Chris W wrote: Thu 18/06/2020 17:05
snowchaser01 wrote: Thu 18/06/2020 16:58

Looking at current radar images, I cannot fathom how the projected rainfall can occur from what is currently on radar, and just off the coast...
It isn't picking up the rain here that well, we've rained reasonably solidly today here though we've just hit a slight pause. Heavier stuff now approaching via the central North Island and Wellington, but let's see if it eventuates as the models are predicting.
Good point, my current thoughts are Kaikoura Coast/Ranges and maybe Amberley north at a push... Can't see it all the way down here.
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Re: Possible Snow event North Canterbury 17-19th June

Unread post by Richard »

Chris W wrote: Thu 18/06/2020 17:05
snowchaser01 wrote: Thu 18/06/2020 16:58

Looking at current radar images, I cannot fathom how the projected rainfall can occur from what is currently on radar, and just off the coast...
It isn't picking up the rain here that well, we've rained reasonably solidly today here though we've just hit a slight pause. Heavier stuff now approaching via the central North Island and Wellington, but let's see if it eventuates as the models are predicting.
Its not picking up the rain north of Amberley, its raining here atm but not showing anything.
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Re: Possible Snow event North Canterbury 17-19th June

Unread post by NZ Thunderstorm Soc »

Razor wrote: Wed 17/06/2020 11:19
NZ Thunderstorm Soc wrote: Tue 16/06/2020 22:56 Off to Reefton on Friday via Arthurs Pass, so will interesting to see the snow there ....and along the Alps. :smile:
I doubt NZTA will let you through under current policy
Yes saw the meeting at Castle Hill on the TV One news this evening and decided to cancel our trip.
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Re: Possible Snow event North Canterbury 17-19th June

Unread post by NZ Thunderstorm Soc »

talbotmj15 wrote: Wed 17/06/2020 14:18 On that. Big meeting at 6pm. Castlehill village. NZTA and Selwyn Mayor fronting up. Hall holds 40 odd people. Yet word is hundreds are expected. Lol.

Would be a laugh if NZTA got caught up there by snow and isaacs closed the road. Lol. Hahaha
Would be funny :lol:
I see they don't allow chains any more.
Thank goodness for the railway. We didn't have any issues during snowfall events when I was driving trains on the Midland Line, you just ploughed through it..
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