Low pressure sequence April 10 - 14

[Cyclone Tracy]

Nailed this bolt from North Head at 11.43am on the sky tower. A bit of cloud to cloud sneaked in as well

[NZstorm]

Good capture Cyclone Tracy!

[spwill]

Nice shot.

[03Stormchaser]

Appears to be foundations but no house in National Park

[Razor]

Good grief! that's gotta be a significant tornado...reports 6 houses destroyed or damaged?

[Storm Struck]

The current maps and numbers throwing out for 3am - 10am tomorrow would be indicative of sea level snow in winter, but there is still that real potential of the snow falling to 100m not settling during this period.
Sea surface temps will ramp those CBs denser clouds and heavier precipitation, therefore resulting in the freezing levels shifting.
Im not saying it will snow in the city but if it does its unusual but not uncommon, it has snowed several times in april in the past but only a few actual settlings including 27th april 1870. ( i only know because its on the met service calendar ) .
Watch those troughs overnight.

[Razor]

There's a few beefy looking showers around here at present. Pretty sure I just saw lightning here

[spwill]

Certainly a cold trough over Canterbury tomorrow morning. The wintry looking trough will be over the North island tomorrow afternoon with the flow S/SW by then so Auckland will have some sheltering.

[Bradley]

The current maps and numbers throwing out for 3am - 10am tomorrow would be indicative of sea level snow in winter, but there is still that real potential of the snow falling to 100m not settling during this period.
Sea surface temps will ramp those CBs denser clouds and heavier precipitation, therefore resulting in the freezing levels shifting.
Im not saying it will snow in the city but if it does its unusual but not uncommon, it has snowed several times in april in the past but only a few actual settlings including 27th april 1870. ( i only know because its on the met service calendar ) .
Watch those troughs overnight.

Snow also fell at Christchurch Airport on April 23 1987 and April 18 1990 so if it does fall overnight there it would be the earliest occurrence I could find

[Richard]

I did pick a good time to be in Melbourne, 28.3 deg and muggy here, the family members left back home say there's no snow on the ground but i see there's been 45.2mm as of now

[Orion]

I did pick a good time to be in Melbourne, 28.3 deg and muggy here, the family members left back home say there's no snow on the ground but i see there's been 70.2mm as of now

Enjoy yourself.
It's warmed up to 6.9°C here now

[Cyclone Tracy]

994.3 hPa and falling here. That NI west coast low may go into the 970's before it crosses. Nasty wrap around SW quadrant. Candles and torch on the ready for after dark.

Here's my 2 bobs worth on the 3pm sat pic

[Nev]

Appears to be foundations but no house in National Park

Amazing! Barely a trace of the house left; lucky there was nobody home at the time. A few more photos of the damage at National Park Village on Ruapehu District Council's Facebook Page.

Below is also a before and after pic (note that a couple of houses behind in the 'after' pic didn't exist in google's 'before' pic). Could be some lens distortion, but the power-pole appears to be bent towards the east...

[tunster]

I did pick a good time to be in Melbourne, 28.3 deg and muggy here, the family members left back home say there's no snow on the ground but i see there's been 45.2mm as of now

Muggy? RH only about 35% across the area an hour ago (dewpoints around 10C or so).

[NZ Thunderstorm Soc]

This event bit of a non-event down here.
Cold southerly winds and the wintry showers moving across all around us. Rain stopped about 6am this morning and nothing since, apart from a couple of spits. Lots of blue sky, when I thought we may of got sleety showers as to the scenario, yesterday, I though that tomorrow might bring.
Nice wintry Cu forms though around us moving north.
Sunny this afternoon but quite cold in the wind.
Clearing a bit now.
Might be a frost tonight.?

[Dean.]

This event bit of a non-event down here.
Cold southerly winds and the wintry showers moving across all around us. Rain stopped about 6am this morning and nothing since, apart from a couple of spits. Lots of blue sky, when I thought we may of got sleety showers as to the scenario, yesterday, I though that tomorrow might bring.
Nice wintry Cu forms though around us moving north.
Sunny this afternoon but quite cold in the wind.
Clearing a bit now.
Might be a frost tonight.?

Expect a lot less action in these type of flows living In Geraldine than West Melton.South Canterbury often sheltered in this set up.We had sleet/hail showers up until lunchtime with another brief shower now,most of the action now will be north of Ashburton.

[RWood]

I did pick a good time to be in Melbourne, 28.3 deg and muggy here, the family members left back home say there's no snow on the ground but i see there's been 45.2mm as of now

Muggy? RH only about 35% across the area an hour ago (dewpoints around 10C or so).

I recall a poster a few years back claiming it was very "humid" in Sydney on a day when temperatures reached a near-record 45C or so. In fact the dewpoint at around the temperature peak time was the lowest for the entire month!

[tunster]

Muggy? RH only about 35% across the area an hour ago (dewpoints around 10C or so).

I recall a poster a few years back claiming it was very "humid" in Sydney on a day when temperatures reached a near-record 45C or so. In fact the dewpoint at around the temperature peak time was the lowest for the entire month!

It's hard to fight the claim that "in Sydney it's 45C with 95% humidity". You hear that a lot!

[talbotmj15]

I see Stuff are reporting light snow falling at Christchurch Airport. Surely its on Graupel?? I see the radar starting to really fire up with beefy showers now. Will be an interesting night ahead i suspect.

[tich]

I see Stuff are reporting light snow falling at Christchurch Airport. Surely its on Graupel??

Saw the photo - looks more like hail. (which we've been getting at times today in Chch)

[Cyclone Tracy]

Steady here on 994 hPa, still NWesterly, wind picking up again.

Low circulation looks a little further north than models suggested. PWS's west of Auckland now around 989 to 990 hPa, gusts in the 90's km/h.

[tunster]

I see Stuff are reporting light snow falling at Christchurch Airport. Surely its on Graupel??

Saw the photo - looks more like hail. (which we've been getting at times today in Chch)

Seems that way, and the ATIS at the time was reporting MOD SH of RA and GS with temperature 6C and dewpoint 2C.
Stuff have decided it's a fact though.
Also this is the most recent post on their live blog (at 7:54PM):
"It'll be a while until the worst of the bad weather hits, so we're going to shut this live blog down for now."

Where did they get this idea from?

[jamie]

I see Brian on the manukau heads has had a 126km/h gust

EDIT: make that 129.5 and increasing

136.9 now. Think thats a record for brian

[NZ Thunderstorm Soc]

This event bit of a non-event down here.

Expect a lot less action in these type of flows living In Geraldine than West Melton.South Canterbury often sheltered in this set up.We had sleet/hail showers up until lunchtime with another brief shower now,most of the action now will be north of Ashburton.

Yes. your right on this. Much of the stuff moves up through the Canterbury Bight and onto land west to east and south of ChCh. WM would be getting a bit of more substantial stuff from this weather than here.

[cbm]

70 gusting 96 knots at the lighthouse up there (Manukau heads) according to the coastguard app. Know that site is a perfect wind funnel.

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Edit:now 104knts. Wonder if will hit 200 kph as I believe that site has recorded before.