Thunder Watch
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These topics are a read-only archive and may be subject to out-of-date information.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These topics are a read-only archive and may be subject to out-of-date information.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: 18499
- Joined: Wed 12/03/2003 22:08
- Location: Raukapuka Geraldine
- Has thanked: 1774 times
- Been thanked: 1423 times
Thunder Watch
A bit of a gamble here but Aaron, keep your eyes out for thunder Thursday poss Friday AT THE MOMENT (source ECMWF)
JohnGaul
NZTS
JohnGaul
NZTS
-
- Posts: 3473
- Joined: Sat 15/03/2003 18:32
- Location: Christchurch (St Albans)/Akaroa
- Has thanked: 22 times
- Been thanked: 92 times
I heard a forecast today suggesting the possibility of afternoon cloud buildups in inland South Island leading to showers. Though probably not warm enough yet for such scenarios (under high pressure systems) to lead to thunderstorms. (though it did get up to 27C in Alexandra today, according to TV1 Weather)
-
- Posts: 1424
- Joined: Tue 27/05/2003 14:15
- Location: Alexandra
- Has thanked: 134 times
- Been thanked: 63 times
Yes tich it has been warm for a bout the last week, with temps reaching the high 20's.Though probably not warm enough yet for such scenarios (under high pressure systems) to lead to thunderstorms. (though it did get up to 27C in Alexandra today, according to TV1 Weather)
So there could be a chance for some Cbs to develop come wed, thur.
Any way what do others think?
Andy
-
- Posts: 18499
- Joined: Wed 12/03/2003 22:08
- Location: Raukapuka Geraldine
- Has thanked: 1774 times
- Been thanked: 1423 times
-
- Posts: 18499
- Joined: Wed 12/03/2003 22:08
- Location: Raukapuka Geraldine
- Has thanked: 1774 times
- Been thanked: 1423 times
-
- Posts: 18499
- Joined: Wed 12/03/2003 22:08
- Location: Raukapuka Geraldine
- Has thanked: 1774 times
- Been thanked: 1423 times
I see they had thunderstorms in the Tararuas today according to the weather reports on TV this evening.
Could be interesting in the next couple of days in western areas.
Aaron, if are you heading to the West coast you might get some good results.!!
There were strong convergence cells here in Christchurch this afternnoon just to the south of the city. Of course it came to nothing.
...boring
JohnGaul
NZTS
Could be interesting in the next couple of days in western areas.
Aaron, if are you heading to the West coast you might get some good results.!!
There were strong convergence cells here in Christchurch this afternnoon just to the south of the city. Of course it came to nothing.
...boring
JohnGaul
NZTS
-
- Posts: 2068
- Joined: Wed 12/03/2003 19:47
- Location: Mt Somers
- Has thanked: 19 times
- Been thanked: 41 times
Hi John
Yeah, I was out at near Wigram today and noticed a couple of Cb's about produced from convergence as you say. I was looking at one dark base in particular waiting for a fork to pop out of it but nothing eventuated, there could of been something behind the port hills? I sort of saw the anvil and mammantis forms could be seen on the underside of it but nothing spectacular. Some of the big Cu forms looked cool (just before Cb). Out at Wigram it felt relatively warm and humid, despite alot of cloud cover (although sun did come through at times), when looking at roofs of cars you could see the heat rising from them and the heat warped the air as it rose, I guess it was a sign of heat? Oh why did I say that! Anyway!
Doubt I'll be going to the West Coast anytime soon John, I wish! Once again, hopefully it comes over enough to be seen from this side of the alps.
Cheers
Aaron Wilkinson
Yeah, I was out at near Wigram today and noticed a couple of Cb's about produced from convergence as you say. I was looking at one dark base in particular waiting for a fork to pop out of it but nothing eventuated, there could of been something behind the port hills? I sort of saw the anvil and mammantis forms could be seen on the underside of it but nothing spectacular. Some of the big Cu forms looked cool (just before Cb). Out at Wigram it felt relatively warm and humid, despite alot of cloud cover (although sun did come through at times), when looking at roofs of cars you could see the heat rising from them and the heat warped the air as it rose, I guess it was a sign of heat? Oh why did I say that! Anyway!
Doubt I'll be going to the West Coast anytime soon John, I wish! Once again, hopefully it comes over enough to be seen from this side of the alps.
Cheers
Aaron Wilkinson
- NZstorm
- Posts: 11333
- Joined: Mon 10/03/2003 19:38
- Location: Grey Lynn, Auckland
- Has thanked: 342 times
- Been thanked: 361 times
The front looks largely weak this morning. The pre-frontal airmass is just not mild and moist enough. The dewpoint temperature at Hokitika this morning is 8C. To dry. Where there is some moisture(in the north Tasman sea some large cb's have developed). The surface dewpoint at Norfolk island last night was 13C, this morning it has lifted to 18C.
The extent to which thundery rain gets into northern NZ today will be governed by how much of this moist air can come down ahead of the front.
The extent to which thundery rain gets into northern NZ today will be governed by how much of this moist air can come down ahead of the front.
-
- Posts: 18499
- Joined: Wed 12/03/2003 22:08
- Location: Raukapuka Geraldine
- Has thanked: 1774 times
- Been thanked: 1423 times
Thunder Watch
Yes Steven I noticed it was rather weak and latest satellite picture shows not much happening despite a 'falling glass'.
Maybe interesting to see what happens, that's why ...
I'm now putting a thunder-watch out for Canterbury tomorrow because MetServive have forecasted the possibilty of thunderstorms especially inland, in the afternoon or evening!
Aaron be ready!
JohnGaul
NZTS[/b]
Maybe interesting to see what happens, that's why ...
I'm now putting a thunder-watch out for Canterbury tomorrow because MetServive have forecasted the possibilty of thunderstorms especially inland, in the afternoon or evening!
Aaron be ready!
JohnGaul
NZTS[/b]
- TonyT
- Moderator
- Posts: 2883
- Joined: Thu 08/05/2003 11:09
- Location: Amberley, North Canterbury
- Has thanked: 354 times
- Been thanked: 1156 times
Some nice build ups bubbling away over the hill country of North Canty this afternoon (1.45PM) looking like it will turn to showers and possibly some electrical activity - there is a good cool E breeze blowing in Amberley, and the clouds are getting ever darker.
I noticed 2 showers developing and precipitating yesterday afternoon, one over Oxford and another over the hills north of Amberley, with a few light spots here around 4pm. No sign of thunder though.
I noticed 2 showers developing and precipitating yesterday afternoon, one over Oxford and another over the hills north of Amberley, with a few light spots here around 4pm. No sign of thunder though.
-
- Posts: 3473
- Joined: Sat 15/03/2003 18:32
- Location: Christchurch (St Albans)/Akaroa
- Has thanked: 22 times
- Been thanked: 92 times
By the look of the cloud to the north of Chch, you should be getting a storm right now Tony. The dark sky covers the whole northern horizon, even though it's difficult to get a good view from where I live.Some nice build ups bubbling away over the hill country of North Canty this afternoon (1.45PM) looking like it will turn to showers and possibly some electrical activity - there is a good cool E breeze blowing in Amberley, and the clouds are getting ever darker.
- TonyT
- Moderator
- Posts: 2883
- Joined: Thu 08/05/2003 11:09
- Location: Amberley, North Canterbury
- Has thanked: 354 times
- Been thanked: 1156 times