Rain/ Snow / Flooding SI 8/9 Nov 2018

[NZstorm]

Ukmet rainfall total for this week. Certainly a downpour on the cards for the Southern Alps.

[Richard]

Yes, 500mm possible for the Southern Alps, showing 50-60mm here, if only it does.

[Razor]

GFS pointing to some springtime fun later in the week thats for sure!

[Chris W]

MetService and BOM as well, Thursday through Saturday looks very, very wet indeed for the South Island. I’m planning to go to the Hororata Highland games on Saturday but let’s see how this pans out!

[Bradley]

Sharp increase in moisture levels overnight with EC with 60-100mm over large swathes of mid and north Canterbury, surface flooding around Christchurch looking almost certain...snow level has also dropped down to 500-600m

[Richard]

Good, will be great timing if that much does fall, hills are starting to turn brown

[Cyclone Tracy]

Side by side – warm moist and cold surface conveyor belts creating a text book baroclinic leaf on the visible and water vapour 2pm satellite pics. Mother nature commencing to brew a Tasman water bomb for parts of the SI

[NZstorm]

Nice crop of elevated storms over Westland currently.

Latest EU output on rainfall totals for this event. Snow possible in Tekapo tomorrow as the airmass cools.

[Richard]

Nice crop of elevated storms over Westland currently.
.

Yes a nice wee clump.
The wave clouds from earlier on have been replaced with mid level cloud now streaming out from over the mountains, and reasonably strong N

5afa3edf-17af-4a9c-a3dc-d3e1b0757829.png

[Razor]

Some of the pics coming in from Arthur's Pass and the West Coast are remarkable

Cropp River site about to cross 500mm for the day!
http://data.wcrc.govt.nz/cgi-bin/HydWebServer.cgi

[Chris W]

https://i.stuff.co.nz/national/10843812 ... west-coast

It doesn't look like Arthur's Pass will be open tomorrow going by that photo from Goat Creek!

[NZ Thunderstorm Soc]

Just seen a flash of lightning, resulting in a long rumble of thunder around the Mt. Peel area
I noticed the Blitz got it as well

[Razor]

Just seen a flash of lightning, resulting in a long rumble of thunder around the Mt. Peel area
I noticed the Blitz got it as well

Thunder reported around Darfield at 2230pm

[NZ Thunderstorm Soc]

Just had a beautiful clap of thunder here. Long rumble with a "Dump" at the end.

[melja]

https://i.stuff.co.nz/national/10843812 ... west-coast

It doesn't look like Arthur's Pass will be open tomorrow going by that photo from Goat Creek!

It's only the approach, they will have it operational by this arvo I'm hoping as we have a weekend on the coast.
12mm from late yesterday evening so far here in Rangiora, not heavy but very thick and wetting.

[Richard]

You lucky bugger John, looks like youve had a lot of rain so far too.

[Orion]

Long roll of thunder somewhere to the north I think, just now.

[Dean.]

Long roll of thunder with heavy rain...we are in for a deluge for the next 6 or so hours according to Metvuw (GFS) which has been very accurate as per usual...

[Richard]

Radar is looking impressive down your way, must be some high accumulations already in parts of South Canterbury.

[Dean.]

Radar is looking impressive down your way, must be some high accumulations already in parts of South Canterbury.

Been light to moderate yesterday in Mid Canterbury...with South Canterbury (south of the Rangitata) copping the worst.Heavy rain now.Some big cloud tops visible of the satellite with loud thunder as I type.

[snowstormwatcher]

61mm here since yesterday and still raining heavily. getting colder now also with the temp down to 3.8c.

[NZstorm]

I see Fairlie PWS on 1C with precip.

[Dean.]

Snow setting in at the Ashburton lakes at 700 metres...some social media reports of snow falling inland from Geraldine

[Skywatcher]

I see Fairlie PWS on 1C with precip.

Snowing on the traffic cam. (Source)

[snowstormwatcher]

Snow falling slot lower than forecast.im only just over 100m above sea level here and we have sleet/snow mixed in rain. Temp down to 2.7c