Low pressure system 8th-9th October

NZstorm · Unread post by **NZstorm** » Sat 06/10/2012 08:44

The rather deep low in the Tasman early week should bring precip to many places with the West Coast of the South Island getting the heaviest rain.

Looks to be a warm advective snow risk for the inland South Island with moist air over running cold air east of the Alps. Something to watch, heavy snow for the foothills atleast I would say.

Perhaps some embedded convection will spice up the front for the north. Looks like we get dps of 15C Monday.

Manukau heads obs · Sat 06/10/2012 09:03

the models also have another maybe even deeper low to follow close behind it too
this first low, the models have it moving into the tasman quickly but then stalling...blocking of the high to the east?

NZstorm · Unread post by **NZstorm** » Sun 07/10/2012 10:05

Surface temperature chart for NZ midday Monday.

Cold rain over the South Island will fall as snow over higher ground.
I see Met Service have a snow warning up for Canterbury high country including McKenzie.

NZstorm · Unread post by **NZstorm** » Sun 07/10/2012 20:00

I can't see Auckland getting much from the cold front tomorrow. Looks like a short spell of rain late afternoon/early evening. The milder weather will be nice though. It has felt like winter here last couple of days.

Andy · Unread post by **Andy** » Sun 07/10/2012 20:59

How much rain will make it into Alexandra in the next couple of days? Thanks

Manukau heads obs · Sun 07/10/2012 21:22

the front in the tasman is getting more organised and becoming more active this evening
lightning active now
and nice looking CB's on it by the looks of the latest sat map
the warm front ahead also looks like that is becoming more organised too

but it does look like the best of it all will be south of here...

spwill · Unread post by **spwill** » Sun 07/10/2012 22:05

Yes, the cold front in the Tasman looks great currently.

I see Qtwn is currently on 9C so not much chilling there tonight.

Orion · Unread post by **Orion** » Mon 08/10/2012 07:09

Overcast, light rain, 6.1 degrees at the moment.
Calm.

NZstorm · Unread post by **NZstorm** » Mon 08/10/2012 07:10

The system is not as cold as previously indicated in the models for the south.

We have got some showers here now from the warm front. Classic mid lattitude low.

snowstormwatcher · Unread post by **snowstormwatcher** » Mon 08/10/2012 07:55

Orion wrote:Overcast, light rain, 6.1 degrees at the moment.
Calm.

Same here, 5.8 degrees with light rain and no wind.

Razor · Unread post by **Razor** » Mon 08/10/2012 09:24

Looks to be heavy snow at Arthurs aand Porters Passes. Arthurs Pass met site reporting heavy falls down to 500m at present, the webcam looks well dumped on www.softrock.co.nz

I was standing on the hills above Porters Pass in perfect warm sunny weather yesterday, dramtic turnaround

Dean. · Unread post by **Dean.** » Mon 08/10/2012 09:39

Snowing on Castle Hill's webcam at 700 metres.
Heaviest falls seem to be north of the Rakaia river.

Razor · Unread post by **Razor** » Mon 08/10/2012 09:45

Yes Tekapo looks clear so far

David · Unread post by **David** » Mon 08/10/2012 10:37

Another wintry feeling day so far: overcast and dull, 14C and windy.

Orion · Unread post by **Orion** » Mon 08/10/2012 10:39

Rain heavier, pattering audibly on roof now.
7.5 degrees.
Still no wind.

CWUweather · Unread post by **CWUweather** » Mon 08/10/2012 12:02

just to the northwest of chch is some ominous looking weather!

Dean. · Unread post by **Dean.** » Mon 08/10/2012 12:32

Just driven up the access road on Mt Hutt,5cm of snow at around 1000metres.No low level snow.

Razor · Unread post by **Razor** » Mon 08/10/2012 12:48

Arthurs Pass village at luchtime from the softrock site

snowstormwatcher · Unread post by **snowstormwatcher** » Mon 08/10/2012 13:02

Snow level looks to be around 1000m here, Nowhere near the 400m metservice was predicting.

7.6 degrees with moderate rain.

spwill · Unread post by **spwill** » Mon 08/10/2012 14:46

Snow level looks above 1000m for the Tekapo region going by web cam.
edit, snow level lower now with heavier precip

Humid air has arrived here now, dewpoint 15C, 17C, overcaste conditions.

Razor · Unread post by **Razor** » Mon 08/10/2012 15:47

Wow it looks like Arthurs Pass is taking a real hammering- heavy snow reported still falling to 500m. 12cm settled in the village

spwill · Unread post by **spwill** » Mon 08/10/2012 16:09

Very pleasant here now, sun out, 19C, dewpoint 15C.

Razor · Unread post by **Razor** » Mon 08/10/2012 16:24

Tekapo webcam showing decent snow there now too. A good top up for the ski fields this system, hopefully not too low down though for those farmers in the midst of lambing

Orion · Unread post by **Orion** » Mon 08/10/2012 17:36

Plenty of rain in Methven, Westerfield and Mayfield areas this afternoon.
Car thermometer read 7 deg. up-country; presently it's 7.4 deg. here.
Saw a large bonfire with a column of smoke rising vertically several hundred feet, then bending away at that height towards the southeast. No wind to speak of on the ground in any of those areas.

jamie · Unread post by **jamie** » Mon 08/10/2012 18:32

Thunder here just now. Must be a weak t storm.

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