Polar blast & NI low 11-14th July

[Paul Mallinson]

Snow on the beach at St Clair, Dunedin.
The Met Service meteorologists had the Dunedin forecast snow level at 200m a day or two ago.

Usually the forecast snow level is aimed at where snow will settle and give an appreciable accumulation. It can come lower than this level at times. It would appear that with the snow being lower than forecast at Dunedin as you report, that the precip was heavier than anticipated and so the snow level was lower (see my comment on page 6).

[jamie]

Power out here already! Snow level just above here.

[spwill]

Snow on the beach at St Clair, Dunedin.
The Met Service meteorologists had the Dunedin forecast snow level at 200m a day or two ago.

Usually the forecast snow level is aimed at where snow will settle and give an appreciable accumulation. It can come lower than this level at times. It would appear that with the snow being lower than forecast at Dunedin as you report, that the precip was heavier than anticipated and so the snow level was lower (see my comment on page 6).

Yes the more robust shower clouds tend to produce the lower snow level and the timing of the heavier showers coming through at night.

[03Stormchaser]

Snow showers in the Chch cbd this morning, now we have the sun shinning between passing showers. Def a cold day though only 2.5c atm

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[Richard]

Wonder why there's a heaps of stations in and around Canterbury on 'your weather' showing 10 -11 -12deg

[Orion]

Wind has risen and another skiff of snowflakes falling currently.

[NZ Thunderstorm Soc]

Most of the wintry stuff is passing well out to the east of us and out to sea.
Been sunny here this morning but frightfully cold in the wind.
No rain or precip since midnight.

[David]

Wonder why there's a heaps of stations in and around Canterbury on 'your weather' showing 10 -11 -12deg

Metservice YourWeather has had problems with keeping data up to date for non-metservice stations. It's probably showing readings from yesterday or even earlier

[Razor]

Wonderful to see such vigorous convective activity coming ashore. Heavy hail and flakes with that one, frequent ice and occasionally snowy showers here all day

[MoorfNZ]

Still chucking it down here nr Sheffield. Apart from a few short breaks it has been constant since 6pm yesterday.

[Richard]

Still chucking it down here nr Sheffield. Apart from a few short breaks it has been constant since 6pm yesterday.

How much you got over there. Only about two decent snow showers all day here, briefly turned white then melted away.

[MoorfNZ]

I'd say about 15cm at the moment...

[Richard]

There's snow laying in a line around the hills here at about 260m asl, only 8mm recorded so far, starting to wonder if this system will produce much the way its going.

[NZ Thunderstorm Soc]

just had a wintry shower go through Geraldine heading towards Mt. Peel way. First one of the day, I think as there wasn't anything in the raingauge from midnight last night.

[MoorfNZ]

When are we looking for the snow showers to stop for Mid-Canterbury/foothills (Sheffield area)?

[spwill]

Cold air arriving in Auckland, 9C now with a dp of 6C, some cold looking Cb tops around.

[David]

Cold air arriving in Auckland, 9C now with a dp of 6C, some cold looking Cb tops around.

Was just about to post the same thing, it's currently 8C in Howick with a recent rain shower

[Richard]

wow thats cold for you guys

[Razor]

1.5 degrees in the mid arvo. Out at Lincoln this arvo with some heave hail showers, quite large hail too!

[Razor]

When are we looking for the snow showers to stop for Mid-Canterbury/foothills (Sheffield area)?

Maybe tomorrow arvo?

[MoorfNZ]

Wow, ok. Looks like 30cm might actually be realistic here, then.

When are we looking for the snow showers to stop for Mid-Canterbury/foothills (Sheffield area)?

Maybe tomorrow arvo?

[NZ Thunderstorm Soc]

I see that there was some snow around West Melton from a photograph posted on a friend of mine's cell telephone.

[Orion]

Graupel hissing down at the moment. Very dark sky.

[Chris W]

Very heavy hail at times this afternoon, and it looks like Chch didn't really get above about 4C. Fantastic wintry day's weather with the parade getting a sunny break.

[Orion]

Lawn and roofs getting white with graupel which is still falling;
clouds to the south have that pinkish-yellowish tinge within