General April Weather
Forum rules
These topics are a read-only archive and may be subject to out-of-date information.
For today's weather discussion head to: New Zealand Weather & Climate
These topics are a read-only archive and may be subject to out-of-date information.
For today's weather discussion head to: New Zealand Weather & Climate
-
- Posts: 9920
- Joined: Sun 29/06/2003 22:39
- Location: Mt Eden Auckland
- Has thanked: 856 times
- Been thanked: 870 times
General April Weather
A dry start to April for most apart from the south and west of the South Island. The westerlies are further north now with a switch in the SAM and a ridge across the North Island through the coming week.
-
- Posts: 18491
- Joined: Wed 12/03/2003 22:08
- Location: Raukapuka Geraldine
- Has thanked: 1769 times
- Been thanked: 1415 times
Re: General April Weather
Possibly a couple of repeats of yesterday's weather for the first week of April.
JohnGaul
NZThS
NZThS
- NZstorm
- Posts: 11333
- Joined: Mon 10/03/2003 19:38
- Location: Grey Lynn, Auckland
- Has thanked: 342 times
- Been thanked: 361 times
Re: General April Weather
Latest run of EU has very cold air over NZ next week. Just model output at this stage.
850mb temp anomaly for next Tuesday.
850mb temp anomaly for next Tuesday.
You do not have the required permissions to view the files attached to this post.
-
- Posts: 64
- Joined: Sat 07/07/2012 16:30
- Location: Blenheim
- Has thanked: 1 time
- Been thanked: 22 times
Re: Wahine storm
Does anyone have any weather maps for 9th April 1968 (day before Wahine storm?) The only one I have seen is a simplified one from the evening post only showing a few isobars. The NCEP reanalysis maps are not particularly accurate and dont match the observations that I have managed to get.
-
- Posts: 18491
- Joined: Wed 12/03/2003 22:08
- Location: Raukapuka Geraldine
- Has thanked: 1769 times
- Been thanked: 1415 times
Re: General April Weather
Firing up in the Tasman Sea at the moment with the Blitz recording over 3000 strikes.
I see MS have up graded their warning for thunderstorms early tomorrow for Westland probably because of this front.
I see MS have up graded their warning for thunderstorms early tomorrow for Westland probably because of this front.
JohnGaul
NZThS
NZThS
-
- Posts: 1519
- Joined: Wed 01/05/2013 21:06
- Location: Christchurch
- Has thanked: 144 times
- Been thanked: 269 times
Re: General April Weather
Looks to be a snow level of around 700-800m at this stage with a decent drop of between 10-20mm for most of Canterbury, certainly a low snow level for early April
-
- Moderator
- Posts: 5138
- Joined: Fri 10/02/2006 15:14
- Location: Halswell, Christchurch
- Has thanked: 725 times
- Been thanked: 932 times
Re: General April Weather
Latest GFS run has just about completely wiped out Mondays significant weather
Christchurch Rocks
-
- Posts: 2488
- Joined: Thu 07/09/2017 19:25
- Location: North Shore, Auckland
- Has thanked: 771 times
- Been thanked: 1719 times
Re: General April Weather
Tropics are becoming interesting in a few days, then EC is going for full blown XTC Fujiwhara effect late next week around the NI viewtopic.php?f=9&t=5733&p=174240#p174240
-
- Posts: 1519
- Joined: Wed 01/05/2013 21:06
- Location: Christchurch
- Has thanked: 144 times
- Been thanked: 269 times
Re: General April Weather
Latest run of EC has it back on with widespread falls of 30-50mm of twin for Canterbury and snow down to 400m for a time on Wednesday!!
-
- Posts: 2488
- Joined: Thu 07/09/2017 19:25
- Location: North Shore, Auckland
- Has thanked: 771 times
- Been thanked: 1719 times
Re: General April Weather
UK, EC, Access and Icon 00Z runs are singing the same tune for an aggressive core cold cyclone for NZ mid next week. GFS not interested ATM
Polar vortex is starting to want to shake hands with the sub tropics and warm SST's. There is some incredible model projections coming out at the moment. NAVGEM 00Z is a classic.... 3 tropical cyclones and a cold core cyclone on the SW pacific synoptics for next Tuesday and Wednesday....looks like a Hollywood movie map
Polar vortex is starting to want to shake hands with the sub tropics and warm SST's. There is some incredible model projections coming out at the moment. NAVGEM 00Z is a classic.... 3 tropical cyclones and a cold core cyclone on the SW pacific synoptics for next Tuesday and Wednesday....looks like a Hollywood movie map
-
- Posts: 1444
- Joined: Tue 04/11/2014 18:13
- Location: Lyttelton
- Has thanked: 947 times
- Been thanked: 362 times
Re: General April Weather
BOM revving things up from Sunday, especially around Tuesday. Looking forward to this, and maybe at long last a storm risk for Chch with 500mb air going south of-26C all the way to -34 into Wednesday.
- NZstorm
- Posts: 11333
- Joined: Mon 10/03/2003 19:38
- Location: Grey Lynn, Auckland
- Has thanked: 342 times
- Been thanked: 361 times
Re: General April Weather
First polar jet stream of the year to cross the North Island early next week. Upper North Island may get a thunderstorm day out of it.
-
- Posts: 5907
- Joined: Fri 25/02/2011 21:35
- Location: Hamilton NZ
- Has thanked: 22 times
- Been thanked: 273 times
- Contact:
Re: General April Weather
April May are often the best thunderstorm days here when we get an early setup like this. Detail still to be known but I like the looks so far.
-
- Posts: 323
- Joined: Mon 21/07/2008 16:33
- Location: Brisbane, Australia, from Invercargill, New Zealan
- Has thanked: 2 times
- Been thanked: 28 times
Re: General April Weather
Nice dusting of snow by the looks of things on the Takatimu mountain range north of Invercargill, down to about 1200m
-
- Posts: 18491
- Joined: Wed 12/03/2003 22:08
- Location: Raukapuka Geraldine
- Has thanked: 1769 times
- Been thanked: 1415 times
Re: General April Weather
Southerly came through here, well we were in Temuka at the time, around 4pm, with a bit of dust flying around, after a rather warm day here in Geraldine, with light winds.
.
.
JohnGaul
NZThS
NZThS
- NZstorm
- Posts: 11333
- Joined: Mon 10/03/2003 19:38
- Location: Grey Lynn, Auckland
- Has thanked: 342 times
- Been thanked: 361 times
Re: General April Weather
Overnight models still indicating a significant polar jet stream early to mid next week for the country.
A snow event on the cards for inland South Island.
Total Totals chart for Tuesday 9am, those numbers very favourable for lightning coming into the west of the North Island with the front.
A snow event on the cards for inland South Island.
Total Totals chart for Tuesday 9am, those numbers very favourable for lightning coming into the west of the North Island with the front.
You do not have the required permissions to view the files attached to this post.
-
- Posts: 1424
- Joined: Tue 27/05/2003 14:15
- Location: Alexandra
- Has thanked: 134 times
- Been thanked: 63 times
Re: General April Weather
How low down do you think the snow will come? are places like Arrowtown/Frankton likely to see snow?
-
- Posts: 2713
- Joined: Sat 03/06/2006 20:11
- Location: Rolleston, Canterbury
- Has thanked: 356 times
- Been thanked: 608 times
Re: General April Weather
I'd say will be pretty close Andy! The models are showing it to be colder and colder for the South island. Heavy snow down to 500-600 on the cards
Mike
Stormchasers.co.nz
Stormchasers.co.nz
- TonyT
- Moderator
- Posts: 2883
- Joined: Thu 08/05/2003 11:09
- Location: Amberley, North Canterbury
- Has thanked: 354 times
- Been thanked: 1156 times
- NZstorm
- Posts: 11333
- Joined: Mon 10/03/2003 19:38
- Location: Grey Lynn, Auckland
- Has thanked: 342 times
- Been thanked: 361 times
Re: General April Weather
500mb jet coming onto the North Island Tuesday modeled to be 100knots! Some of the thunderstorms may produce damaging wind gusts.
Depending on location of the low late Tuesday, Auckland area could see severe gales SW'ers.
Depending on location of the low late Tuesday, Auckland area could see severe gales SW'ers.
-
- Posts: 9920
- Joined: Sun 29/06/2003 22:39
- Location: Mt Eden Auckland
- Has thanked: 856 times
- Been thanked: 870 times
Re: General April Weather
Potential for several thunderstorm days for the western NI this week. Plenty of snow for the higher parts of Canterbury.
- NZstorm
- Posts: 11333
- Joined: Mon 10/03/2003 19:38
- Location: Grey Lynn, Auckland
- Has thanked: 342 times
- Been thanked: 361 times
Re: General April Weather
I think coastal Otago/Canterbury should hear thunder too.
500mb chart for midnight Tuesday.
You do not have the required permissions to view the files attached to this post.
- NZstorm
- Posts: 11333
- Joined: Mon 10/03/2003 19:38
- Location: Grey Lynn, Auckland
- Has thanked: 342 times
- Been thanked: 361 times
Re: General April Weather
GFS has been indicating the possibility of elevated thunderstorms late Friday into Saturday for Auckland Northland. Looks to be a slow moving warm front.
- SnwAddct
- Posts: 252
- Joined: Fri 09/05/2014 09:37
- Location: Swanson, Auckland
- Has thanked: 21 times
- Been thanked: 0
Re: General April Weather
Models suggesting more alpine snow over the next week or two for Sth Island.