Anticyclone to Lurk in the South Tasman Sea

NZ Thunderstorm Soc · Sat 07/07/2007 20:00

Looks like an anticyclone will lurk in the South Tasman Sea

JohnGaul
NZTS

TokWW · Unread post by **TokWW** » Sat 07/07/2007 22:44

But with four linked Lows in the north Tasman, it will stay low and give the SI E to NE and NI with some cold fronts and unsettled weather ...?

Lawrence · Unread post by **Lawrence** » Sat 07/07/2007 23:41

This is certainly going to be a very interesting week indeed,and its already started.

I think we might have a once in a decade experiance here.Better make the best of it.

Manukau heads obs · Sun 08/07/2007 07:04

we had an unexpected (warm front left behind) 12mm of rain overnight, and it was only 8Â°C while it was raining (now only 6.5Â°C now that its stopped)
thats might cold rain for up this way

gllitz · Unread post by **gllitz** » Sun 08/07/2007 08:10

I can't see how the weather pattern this week is exceptional/out of the ordinary?

There seems to be a biggish low affecting the NI TUE/WED, but for the SI, at least, no real precip on the cards....lots of fine weather and frosts....speaking of which, -5C this morning!! Brrr...frost is all over almost everything this morning.

Janos · Unread post by **Janos** » Sun 08/07/2007 08:20

-8 at the airport -5 on the Peninsula....bugger frozen pipes today.

gopolks · Unread post by **gopolks** » Sun 08/07/2007 08:51

So what does it mean for CHCH.

Im guessing fine frosty, boring weather?

gllitz · Unread post by **gllitz** » Sun 08/07/2007 08:55

gopolks wrote:So what does it mean for CHCH.

Im guessing fine frosty, boring weather?

you would be guessing correctly........

I dont see anything "interesting" here in CHCH for some time...

TokWW · Unread post by **TokWW** » Sun 08/07/2007 09:16

The pattern has changed overnight and the upper lows have turned into a High??... (I didn't check any of the forecasted maps...) which will form a ridge of high pressure aligned with NZ and slow down with cold SW over SI and more SE over NI. Settled weather ahead for both islands. More frosts. Low was only -1.9ÂºC here at two places in Tokoroa

Manukau heads obs · Sun 08/07/2007 09:25

huh?
ECMWF has a gale easterly and heavy rain likely for the upper NI
see:
http://www.ecmwf.int/products/forecasts ... 2007070712!!/

you can see the jet stream developing in the tasman now, which is going to drive the whole thing

Andy · Unread post by **Andy** » Sun 08/07/2007 09:49

Janos wrote:-8 at the airport -5 on the Peninsula....bugger frozen pipes today.

-8Â° in Alexandra, alot colder up the valley i bet

TokWW · Unread post by **TokWW** » Sun 08/07/2007 09:57

Ok- I see the NE now... and as I said before - unsettled weather in the north island with the complexity in Tasman to East of NI. I was viewing the current map from TVNZ which has changed again after 9am... nice pic - I need to save these links of maps for enlightenment and future thoughts... thanks Windy! Still cold and light SE here.

spwill · Unread post by **spwill** » Sun 08/07/2007 09:59

I think the northern Low will bring a lot of cloud to NZ this week, best weather will be down in sheltered Central Otago if you dont mind -8C in the mornings.

NZ Thunderstorm Soc · Sun 08/07/2007 21:38

This anticyclone seems to persist for the next week or so, allowing troughs to move over the North Island, sadly.
Nothing of interest down here except for lots of gloomy days, I reckon?

JohnGaul
NZTS

Willoughby · Unread post by **Willoughby** » Sun 08/07/2007 23:43

Seems as though the blocking high is starting to get established to the SW of NZ, thus shifting cyclonegenesis (love that word!) westwards toward Northland more, rather than the NSW coast in June.

Will only probably see occasional drizzle from this system here.. with more falling as you head north. I wonder how high these easterlies are going to get though?!

Manukau heads obs · Mon 09/07/2007 06:55

in the past in these egg beater situation, the easterlies have reached 80kts (150kmh or so) in a line from the top of the coromandel penininsular to the kaipara harbour area

if the squash zone can move further south then towns downslope of the coromandel/mt tearoha kamai range are in for a battering (been a long time since they had a big easterly)......and even this far west we can get a bounce effect off the hunua ranges

RWood · Unread post by **RWood** » Mon 09/07/2007 08:26

I'm beginning to see some similarities to July 1958 of recent mention.

NZ Thunderstorm Soc · Wed 11/07/2007 20:45

Still lurking

I see there was a depression develop around it's top NE of the anticyclone around the NW part of New Zealand that sticks away from the general NE to SW shape of the country? The area is Northland or Auckland, I think

Shows you what a good blocking high this evil anticyclone is?

JohnGaul
NZTS

gllitz · Unread post by **gllitz** » Wed 11/07/2007 21:38

NZ Thunderstorm Soc wrote:Still lurking
I see there was a depression develop around it's top NE of the anticyclone around the NW part of New Zealand that sticks away from the general NE to SW shape of the country? The area is Northland or Auckland, I think
Shows you what a good blocking high this evil anticyclone is?

JohnGaul
NZTS

Yes, still lurking about...I am beginning to get sick of the dull, dreary, drizzly days...bleah

...but, at least we aren't having torrential rains and wind...my heart goes out to those people affected by all that going on up there

Andy · Unread post by **Andy** » Thu 12/07/2007 12:14

I have posted some pics of the hoar frost in Central Otago.

Temp in town is -3.6Â° and thick fog, The frost is at best at 400-500m asl.
Alexandra is 140-200m als so you have to head up into the hills.

Gary you most have this as well, looking at your temp -2.6Â°

Manukau heads obs · Thu 12/07/2007 12:25

Shows you what a good blocking high this evil anticyclone is?

yes, ever since this high budded off from the polar high and headed north, it has really upset the apple cart...with all that cold air that it brought with it! (tornadoes and now the easterly storm)

Wildland · Unread post by **Wildland** » Thu 12/07/2007 14:26

I've definitely got the grumps with this evil anticyclone. Grrrr.
The temperature at Tawa actually reached 10 degrees briefly yesterday, the first time we'd been that high in 6 days. We're back to the gloom with chill rain again today. Too much more of this, and we'll be coming down with cabin fever

I wonder if that bright yellow thing still exists.....

gopolks · Unread post by **gopolks** » Thu 12/07/2007 14:38

Wildland wrote:I've definitely got the grumps with this evil anticyclone. Grrrr.
The temperature at Tawa actually reached 10 degrees briefly yesterday, the first time we'd been that high in 6 days. We're back to the gloom with chill rain again today. Too much more of this, and we'll be coming down with cabin fever

I wonder if that bright yellow thing still exists.....

There are times, when you don't want that yellow thing in the sky. For chch it means severe frosts.

At the moment, we are in a sucky drizzly girly rain type pattern.

Starting Saturday its backs to freezing frosty days with the sun, and I think that is suppose to be the pattern for a long while.

Ive very disappointed with the snow demons this year, hopefully next winter they will make up for it.

tich · Unread post by **tich** » Thu 12/07/2007 14:53

At the moment, we are in a sucky drizzly girly rain type pattern.

Yeah, incessant drizzly showers in Chch again today - hasn't got over 5C.

I see Porter's Pass is closed by snow, so the precipitation must be getting inland.

mikestormchaser · Unread post by **mikestormchaser** » Thu 12/07/2007 16:26

Another dull and boring day in Christchurch i get rather sick of this weather, its cold and drizzly everyday! grr
If its not going too snow or do something then bring on spring with warmer weather and the 2007-08 storm season!