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#1232460 - 17/01/2014 03:24 Re: NSW/ACT day to day weather [Re: Grant]
Canberra's Weather Offline
Weatherzone Addict

Registered: 11/11/2005
Posts: 1141
Loc: Canberra
Amazing how easily people forget, Johnno. This "rare feat" only happened a few years ago. Remember 2009? Remember the day of the 'Black Saturday' bushfires? That was the last time we had that so-called "rare feat"
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#1232464 - 17/01/2014 07:46 Re: NSW/ACT day to day weather [Re: Grant]
KevD Offline
Occasional Visitor

Registered: 23/09/2001
Posts: 5079
Loc: Bellingen NSW 2454
Perhaps becoming more common and used to be rare...

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#1232479 - 17/01/2014 09:31 Re: NSW/ACT day to day weather [Re: Grant]
ant Offline
Meteorological Motor Mouth

Registered: 05/10/2002
Posts: 9063
Loc: Overlooking ACT at 848m
Well sustained upper 30s - into the 40s seems to be becoming more common. almanac says 2013's hottest day in Canberra was on January 18th, 2013, when it hit 42c. Although it appears there was a 42.2c in February, so maybe that was the hottest day. Looks like mid January is the time to take that trip to Antarctica.

The sat pic of the goodness over NT is encouraging (as is the frontal thing headed our way, bringing relief). If the monsoon would be kind enough to feed some extra rain into our front, that would be quite good.

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#1232480 - 17/01/2014 09:33 Re: NSW/ACT day to day weather [Re: Grant]
Eigerwand Offline
Weather Freak

Registered: 28/05/2012
Posts: 213
No point naming names lest I start some forum war and get banned but seriously, to love seeing temperature "records get broken" that as a consequence of the increased frequency of such events is putting massive strain on a number of ecosystems, potentially pushing them to breaking point, seems to me a little odd for anyone with a little hint of a scientific mind.

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#1232490 - 17/01/2014 10:25 Re: NSW/ACT day to day weather [Re: Grant]
aussiestormfreak Offline
Meteorological Motor Mouth

Registered: 02/02/2011
Posts: 5823
Loc: Melbourne (Belgrave); Corryong...
Quite a magical start to the day here in Merimbula! smile

It was quite chilly earlier this morning, only about 15C at sunrise. There was another sea fog this morning, but it was nowhere near as widespread as it was yesterday morning, most of the fog was offshore. But it made watching the sunrise over the Tasman Sea even more special and beautiful! smile

Quite warm now, currently 23C with hardly a cloud to be seen! A bit hazy though, and no doubt very humid. Forecast top of 30C for Merimbula today. I expect that convection will once again begin in a few hours to the west, leading to more showers and thunderstorms this afternoon and evening over the Southern Tablelands and Snowy Mountains, as well as near the Victorian border. smile

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#1232501 - 17/01/2014 11:01 Re: NSW/ACT day to day weather [Re: Eigerwand]
Dipole Offline
Weather Freak

Registered: 10/01/2013
Posts: 328
Loc: Hervey Bay 48m,Tuross Head
I agree, "records get broken"is followed by " unprecedented", at least in the mainstream press, when our knowledge of temperature in this continent is very limited. My daughter at Michelago mentioned this morning that her deciduous trees were shedding green leaves, I guess this is a defense by the trees to limit transpiration and provide a mulch for the root system.
These trees did not know "unprecedented", they were ready for the heat that surprises us.


Edited by Dipole (17/01/2014 11:02)

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#1232505 - 17/01/2014 11:16 Re: NSW/ACT day to day weather [Re: Grant]
Stormy3 Offline
Weatherzone Addict

Registered: 12/06/2013
Posts: 1446
Loc: Ellalong,10kms SW of Cessnock ...
I have seen heat events like this before,and it will break,and always every time it will finish with a big rain event that might end up with a flood to fill up all the creeks and dams that are slowly drying up at the moment,very dry here,in the Hunter,grass brown, cattle dams around my area drying up fast some already dry,creeks have stopped running,even some rivers upstream.


Edited by Stormy3 (17/01/2014 11:17)
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#1232514 - 17/01/2014 11:40 Re: NSW/ACT day to day weather [Re: Grant]
ant Offline
Meteorological Motor Mouth

Registered: 05/10/2002
Posts: 9063
Loc: Overlooking ACT at 848m
Yeah. The dry, I guess it concerns me most that it started so early, way back in Spring. By the time January rolls around, with its potential, records do indeed get broken. For some it's like exciting entertainment, but for others it's livlihoods put under strain, or even broken. ABC news kept showing footage of sheep lying in the mud around a dam, their flanks heaving as they breathed fast with heat stress.

News shows elderly people being moved into facilities with air conditioning, but past heat events have shown that many people die from the extra stress caused by the heat. Not just elderly... sick people and infants too.

My deciduous trees are turning yellow and shedding leaves, I figure it's a result of the dry, warm spring and the early heat-up, and the worsening dry. It's a survival mechanism they've learned, to stop transpiration. Others were reporting this happening back before Christmas.

Facebook today is full of pictures of animals dealing with the heat, especially native animals making use of water put out for them. I feel sad for the animals who are some way from water, for whom the sudden, searing heat is too much.

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#1232522 - 17/01/2014 12:10 Re: NSW/ACT day to day weather [Re: Grant]
dlcat1 Offline
Weather Freak

Registered: 31/01/2011
Posts: 875
Loc: Melbourne (NE burbs)
One of the problems with deciduous trees, or any other tree, and their heat adaptation strategies is that by doing so, shedding leaves and shutting down, they're reducing the energy stores available to reproduce and potentially restricting their ability to do the same in the next heat event. You'll also find that while adult trees can do this, juveniles probably won't survive as they don't have the stored resources to come back.

None of this would present much of a problem if the interval between heat events is long, but if the frequency of events increases, many species will undergo range contractions and some will be extirpated.

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#1232614 - 17/01/2014 17:27 Re: NSW/ACT day to day weather [Re: Grant]
Canberra's Weather Offline
Weatherzone Addict

Registered: 11/11/2005
Posts: 1141
Loc: Canberra
Let's hope we escape at least one 40C today. 39.7C as of 4.06pm at the airport still standing as of 5.15pm.

Hope I haven't jinxed it (if you believe in that, which I don't)
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#1232629 - 17/01/2014 18:07 Re: NSW/ACT day to day weather [Re: Grant]
Steve777 Offline
Weatherzone Addict

Registered: 20/10/2011
Posts: 3592
Loc: Artarmon (Sydney North Shore)
In Sydney, we seem to be following a similar pattern to this time last year. The heatwave seems to be as extreme as last year's, but the heat never reached the coast because the wind patterns never shifted from N-NE to NW like they did last year.

But like last year, it looks like 'Hot Dry Summer' finishes on January 18, to be replaced by 'Humid Summer'. The models show a switch to a more Easterly pattern, with troughs and lows over the Coral Sea and Northern Tasman.

Next week looks to be quite humid and unsettled. This might include a washed out One Day International on Sunday like last year (it only took 0.2 mm of misty rain to do that) and a washed out Australia Day Weekend. After record heat on 18/1/2013, Observatory Hill did not see 30 degrees again until March 22, with the period from late January to early March being mild (temps close to average most days) and fairly wet.

I would like this blue sky weather to continue, punctuated by the occasional thunderstorm, but it is getting a quite dry now and our friends down South could do with some relief.

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#1232635 - 17/01/2014 18:12 Re: NSW/ACT day to day weather [Re: Grant]
Dipole Offline
Weather Freak

Registered: 10/01/2013
Posts: 328
Loc: Hervey Bay 48m,Tuross Head
Every 30' from 16:00

38.4
38.4
37.6 (?)
38.6
38.4

That's all folks.....

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#1232641 - 17/01/2014 18:29 Re: NSW/ACT day to day weather [Re: Grant]
bogong Offline
Weatherzone Addict

Registered: 05/10/2001
Posts: 1398
Loc: Canberra ACT (Higgins - NW Can...
At least with the air so dry, we might get another low min (compared to a normal heatwave). Pity it takes so long to cool down though...

With the dry air and light winds, the Brindabellas were very sharp when looking at them from Canberra. Suspect we are in for a hazy few days as the smoke drifts across in the upper levels from the Vic and SA fires.

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#1232677 - 17/01/2014 20:34 Re: NSW/ACT day to day weather [Re: Grant]
Rainbow Spirit Offline
Weather Freak

Registered: 10/11/2010
Posts: 475
Loc: Green Valley, just west of Liv...
Luckily for us the NSW coast is being saved from this daily heatwave pattern by the strong sea breezes we keep getting. Today we had a building easterly here (Green Valley) just after 2pm.

That means we are getting fairly cool nights around here in the high teens. With today's early arrival of the sea breeze I opened up the house at 5.30pm, instead of the usual 7pm. The highest we have had was 36c on Thursday, and a delightful 15c minimum on Tuesday.

It looks like the basin will miss out on a 40c+ day this time around. Here's hoping it stays that way smile

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#1232700 - 17/01/2014 21:33 Re: NSW/ACT day to day weather [Re: Canberra's Weather]
ant Offline
Meteorological Motor Mouth

Registered: 05/10/2002
Posts: 9063
Loc: Overlooking ACT at 848m
Originally Posted By: Canberra's Weather
Let's hope we escape at least one 40C today. 39.7C as of 4.06pm at the airport still standing as of 5.15pm.


I suspect they'll round that up to 40c, although today's tuggy max is showing as 39c. for some reason, they don't update the airport stats for ages. (although they're on the detailed report).

And 40 tomorrow, just so's you don't miss out. Heat is always pushed ahead of a front, so it makes sense.

NE winds at the coast galore, rising to very strong and gusty this evening, and humidity through the roof. Still not used to it. 'Gong and Ulladulla saying humidity is in the 80% range, and I belive it. 25c here, but it's warm.

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#1232714 - 17/01/2014 22:03 Re: NSW/ACT day to day weather [Re: Grant]
Steve777 Offline
Weatherzone Addict

Registered: 20/10/2011
Posts: 3592
Loc: Artarmon (Sydney North Shore)
The sea gales are barreling away here, some distance inland, and it's so humid you can almost cut the air with a knife. In the clear sky there was still daylight in the West at 9:00PM. In often-cloudy Sydney you can forget how long Summer days actually are. And now it's another bright, clear night with a near-full moon.

The weather on the Coast is very different from even only 20km inland. During this week the temperature hovers around 22 all night, dipping a bit around dawn, rises to 26 by mid morning then hovers around 26-27 all day, maybe briefly spiking a degree or two higher.


Edited by Steve777 (17/01/2014 22:06)
Edit Reason: Typo

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#1232786 - 18/01/2014 05:35 Re: NSW/ACT day to day weather [Re: Grant]
perrywinkle Offline
Weather Freak

Registered: 04/08/2006
Posts: 431
Loc: Warrawee Valley
Cicadas started up at 5:30am. Are they telling us something?

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#1232788 - 18/01/2014 06:55 Re: NSW/ACT day to day weather [Re: Grant]
DerekHV Offline
Weather Freak

Registered: 12/02/2010
Posts: 839
Loc: Aberglasslyn (Maitland) NSW
Doesn't say what the maximum in Canberra was yesterday, did it get to 40C?
If so, there could well be 4 days in a row over 40, otherwise certainly 4 days in a row over the old Farenheit century. (Sydney city has only ever done this for 2 days in a row and only twice),.
Parts of the Riverina (eg Griffith) our now heading into 6 days in a row over 40C.
Still a long way to go to catch the record - 16 days in a row over 40C in Wilcannia during the brutal February 2004 heatwave.


Edited by DerekHV (18/01/2014 06:56)

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#1232789 - 18/01/2014 06:59 Re: NSW/ACT day to day weather [Re: Grant]
Teddy Offline
Weather Freak

Registered: 15/01/2010
Posts: 339
Loc: Monash, Canberra 625m
Hi Derek, officially we got 39.7C which coincidentally is the same as what I got in Monash. So no record number of consecutive days over 40C.
I think TV stations rounded it to 40C anyway.

Cheers Teddy

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#1232803 - 18/01/2014 10:13 Re: NSW/ACT day to day weather [Re: Grant]
Dipole Offline
Weather Freak

Registered: 10/01/2013
Posts: 328
Loc: Hervey Bay 48m,Tuross Head
Teddy,

How did you get that official 39.7 ?

I use http://www.bom.gov.au/products/IDN60903/IDN60903.94926.shtml at Canberra Airport, figures shown above.

Thanks

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