Cold blast to end May

Gary Roberts · Unread post by **Gary Roberts** » Mon 30/05/2005 07:47

Ultra-boring weather in the Mackenzie. No more snow, hazy sky, low a moderate -1.5Â° at 02:23 this morning.

Yawn...

Typical! I post the above and so it begins snowing in Omarama.

CbFan · Unread post by **CbFan** » Mon 30/05/2005 09:20

Hot off the press at 09:13

SEVERE WEATHER WARNING: HEAVY SNOW WARNING HIGHER PARTS OF CENTRAL PLATEAU IN 18 HRS
FROM 0900 MONDAY TO 0300 TUESDAY. 15 - 20 CM SNOW EXPECTED ABOVE 900 M.
LIGHTER ACCUMULATION DOWN TO 700M INTENSITIES COULD BRIEFLY REACH 3 - 4 CM/ HR THIS AFTERNOON

TonyT · Unread post by **TonyT** » Mon 30/05/2005 10:48

Some nice CBs running up the coast and over the Peninsula at present.

Gary Roberts · Unread post by **Gary Roberts** » Mon 30/05/2005 10:53

CbFan wrote:Hot off the press at 09:13

SEVERE WEATHER WARNING: HEAVY SNOW WARNING HIGHER PARTS OF CENTRAL PLATEAU IN 18 HRS
FROM 0900 MONDAY TO 0300 TUESDAY. 15 - 20 CM SNOW EXPECTED ABOVE 900 M.
LIGHTER ACCUMULATION DOWN TO 700M INTENSITIES COULD BRIEFLY REACH 3 - 4 CM/ HR THIS AFTERNOON

There are going to be some very happy skifield operators around the place!

Fujita Phil · Unread post by **Fujita Phil** » Mon 30/05/2005 10:58

Very light dusting on top of Flagstaff and Mt Cargill this morning. Will be gone as soon as the sun rises. Cold

Skywatcher · Unread post by **Skywatcher** » Mon 30/05/2005 11:14

You can see that line of small Cbs off the coast just after 10am on the attached sat pic as well as the snow cover over the SI. Photo shows one of the Cbs looking SSW.

Thunder · Unread post by **Thunder** » Mon 30/05/2005 11:16

Good Job Tony!

A nice Cb out my window now with good Cu. Some nice contrast in the sky today, no filters used here.

Cheers.

Skywatcher · Unread post by **Skywatcher** » Mon 30/05/2005 11:31

Another view of that Cb looking SE from here - a bit of interesting glaciation there

I cheated and used a C.Pol filter

tich · Unread post by **tich** » Mon 30/05/2005 12:50

After a fine morning (and a frost) it became showery out near Akaroa soon afternoon Noon. Heard a s'feric on the radio about 12.20, but no thunder, so not too close.

03Stormchaser · Unread post by **03Stormchaser** » Mon 30/05/2005 18:09

Heavy rain about 12.30 from passing cu, noticed this Cb out to sea, also large cb over Bp.

03Stormchaser · Unread post by **03Stormchaser** » Mon 30/05/2005 18:09

Steven Graham wrote: I cheated and used a C.Pol filter

how is that cheating?

tich · Unread post by **tich** » Mon 30/05/2005 18:32

Showery periods continued through the afternoon on BP, with a light dusting of snow on some high peaks (above 700m) for a time, and sleet about Hilltop about 4.30PM. Apparently, there was a brief heavy hail shower in Akaroa itself when the showers began soon after midday.

jeffsweather · Unread post by **jeffsweather** » Mon 30/05/2005 19:23

tich wrote:Showery periods continued through the afternoon on BP, with a light dusting of snow on some high peaks (above 700m) for a time, and sleet about Hilltop about 4.30PM. Apparently, there was a brief heavy hail shower in Akaroa itself when the showers began soon after midday.

I thought I saw a light dusting of snow on Mt Herbert at lunchtime, It may have been hail, it was too far away to tell.

A hail shower went through NW Christchurch about 12:30pm

Had another breif hail shower here in Hillmorton a little after 6pm, this follows another one mid afternoon. Nothing in my raingauge (less than 0.2mm) from these showers we've had today.

Michael · Unread post by **Michael** » Mon 30/05/2005 19:31

We must had a bucketload of rain today,its hardly eased up let alone the gale driving it

tich wrote:Nothing in my raingauge (less than 0.2mm) from these showers we've had today.

ricky · Unread post by **ricky** » Mon 30/05/2005 19:44

only 4.8mm here so far

mostly in very brief squally showers

Fujita Phil · Unread post by **Fujita Phil** » Mon 30/05/2005 20:14

Some good rain here around 4pm onwards. 7mm so far.

Funny how I have heard people all day say... "it's cold... it will probably snow".... "nah, it's too wet"

TOO WET?

How about to warm... No, no it's too dark.... that's it

huttcrazy · Unread post by **huttcrazy** » Mon 30/05/2005 20:46

Hi all

The Hutt Valley finally got some activity last night. A storm wandered up the valley at about 10.30 last night, causing a few drops in the power and wiping out telstra`s broadband and tv in the area.

Also saw some moderate hailstorms both last night and twice today.

It sure beats the Nimbostratus we normally get draped over the hills here..

Cheers

James

Willoughby · Unread post by **Willoughby** » Mon 30/05/2005 21:33

ricky wrote:only 4.8mm here so far mostly in very brief squally showers

A massive 47mm in the 24 hours to 9am this morning

29mm so far today, also from frequent squally heavy showers

but brrrrrrrr it's cold!! Have not observed any hail from this system here.

NZ Thunderstorm Soc · Mon 30/05/2005 22:53

TonyT wrote:Total totals looks high, LAPs is showing a band of 60+ running up the Canterbury coast, across Marlborough and up onto the west of the North Island, plus a cold pool centred over Mid Canterbury - should lower the middle atmosphere temps a bit. Combine that with indications of an increasing S-SW flow in the afternoon and CBs should pop up. Hail, thunder, fizzers, who knows, but the potential is there. It is winter, so the chances are for smaller Cbs which counts against thunder I suppose.

Good on yer Tony, you did well.

MetService said nowt but I can understand

I don't know if anything came of these Cn s as I thought because of winter and the fact that they glaciated a bit too quickly, nothing happened.
Was there hail? I never experienced any, despite my concentrated efforts to see of any hail fall. could of been around the back of BP and and possibly over Riccarton to north of there froma glaciated Cn that formed and then moved east.
I expect also that the early glaciaition process was the hinder the further deveopment of a possible thunderstorm as it would of ruined the Crusadars reception in Catherdral Square

JohnGaul
NZTS

ricky · Unread post by **ricky** » Tue 31/05/2005 08:36

heard news reports of the Desert road closed by snow this morning.. looks like they'll be getting more there later this week

Gary Roberts · Unread post by **Gary Roberts** » Tue 31/05/2005 11:12

Fujita Phil wrote:Some good rain here around 4pm onwards. 7mm so far.

Funny how I have heard people all day say... "it's cold... it will probably snow".... "nah, it's too wet"

TOO WET? How about to warm... No, no it's too dark.... that's it

HAHA Phil!

People keep asking me what the weather's going to be like...How the hell would I know?

If I knew stuff like that I wouldn't need a weather station!

tich · Unread post by **tich** » Tue 31/05/2005 22:00

High cloud built up from the west during the afternoon, and we've had some rain in central Chch for about an hour. I notice Westland had a very cold day today, with only about 6C max in Greymouth, with some precipitation in the obs. Snow on the passes to quite low levels?

RWood · Unread post by **RWood** » Tue 31/05/2005 22:21

tich wrote:High cloud built up from the west during the afternoon, and we've had some rain in central Chch for about an hour. I notice Westland had a very cold day today, with only about 6C max in Greymouth, with some precipitation in the obs. Snow on the passes to quite low levels?

Lovely sunny day here today, just a bit of high cloud later.

Willoughby · Unread post by **Willoughby** » Thu 02/06/2005 23:29

TonyT wrote:LAPs is showing a band of 60+ running up the Canterbury coast

What's that

Precipitable water?

I just tried to work out the Total totals formula, do you minus the 500mb twice to get the vertical total and cross total?

NZ Weather Forum

Cold blast to end May

Even the Hutt saw some action