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#1451225 - 01/02/2018 22:33 Re: NSW/ACT day to day weather [Re: Grant]
Jimi Offline
Weather Freak

Registered: 15/03/2004
Posts: 957
Loc: Cammeray
Where can I see the daily obs for this new Obs Hill site?

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#1451227 - 01/02/2018 22:55 Re: NSW/ACT day to day weather [Re: Jimi]
Steve777 Offline
Weatherzone Addict

Registered: 20/10/2011
Posts: 4363
Loc: Artarmon (Sydney North Shore)
Originally Posted By: Jimi
Where can I see the daily obs for this new Obs Hill site?


Go to 'Weather and Climate Data' on the BOM home page, search for Sydney and select Observatory Hill (comparison). Or just select site No 66214.

----

It's raining outside. Small but chunky-looking shower cells are moving into Sydney from the SSE.

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#1451230 - 01/02/2018 23:03 Re: NSW/ACT day to day weather [Re: Grant]
Jimi Offline
Weather Freak

Registered: 15/03/2004
Posts: 957
Loc: Cammeray
Thanks Steve. I was digging around from the Sydney Obs section.

Now bookmarked. Interesting that it was nearly a degree cooler on that really hot day (why I wanted to check it).

http://www.bom.gov.au/jsp/ncc/cdio/weath...p_stn_num=66214

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#1451232 - 01/02/2018 23:17 Re: NSW/ACT day to day weather [Re: Grant]
Perfect Storm Offline
Weather Freak

Registered: 30/10/2005
Posts: 971
Loc: Carramar, Sydney, NSW
Hoping for a few showers to drop some H2O but alas they're coming from the SSE so not as likely but wouldn't rule it out.

A lot of trees starting to look stressed. Native regeneration areas just about all withered away or on their way.

Newly planted (10k or so on 30 July 2017) shrubs and trees all struggling. Ones close to the station much the same.

Shame, I was really glad they were greening up the metro and this part of Sydney even more but it just seems to have coincided with this dry spell. Arrgh!

Quote:
Fairfield Council will plant 10,000 trees, shrubs and ground cover plants at Carrawood Park in Carramar as part of National Tree Day on Sunday.


http://www.fairfieldchampion.com.au/story/4808156/10000-trees-on-the-way-for-event/


Edited by Perfect Storm (01/02/2018 23:26)
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#1451245 - 02/02/2018 00:00 Re: NSW/ACT day to day weather [Re: Grant]
ashestoashes Offline
Weather Freak

Registered: 22/10/2017
Posts: 440
Loc: Voyager Point (South West Sydn...
Just noticed how those 300mb winds are absolutely roaring.
[img:left]https://i.imgur.com/BNTiZBE.png?1[/img]

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#1451254 - 02/02/2018 07:52 Re: NSW/ACT day to day weather [Re: Grant]
Knot Offline
Weatherzone Addict

Registered: 01/05/2014
Posts: 2560
Loc: Toronto N.S.W
A little grey and cool
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If you can't change something, there is only one option. Adapt!

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#1451270 - 02/02/2018 09:40 Re: NSW/ACT day to day weather [Re: Grant]
Blair Trewin Offline
Weatherzone Addict

Registered: 13/07/2001
Posts: 3823
Loc: Melbourne, Australia
Indications so far are that the new Observatory Hill site is warmer (sometimes significantly so) than the old one in easterly or northeasterly winds, but cooler in westerlies or northwesterlies. Since the former are more common in the warmer months, so far maximum temperatures have been averaging warmer at the new site but it wouldn't surprise me if this difference disappears (or even reverses) in winter.

Now you know why adjusting long-term temperature records for site changes is complicated :-).

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#1451272 - 02/02/2018 10:19 Re: NSW/ACT day to day weather [Re: Blair Trewin]
Steve777 Offline
Weatherzone Addict

Registered: 20/10/2011
Posts: 4363
Loc: Artarmon (Sydney North Shore)
Originally Posted By: Blair Trewin
Now you know why adjusting long-term temperature records for site changes is complicated :-).


It's amazing how 150 meteres can make such a difference. I suppose it's not the distance but the exposure. The old site seems completely exposed to the E-NE. The sea breeze must reach there after funnelling down the Harbour having barely touched land. On the other hand, it's somewhat sheltered to the West and South by buildings and trees.

------

Just had a moderate shower pass over here - one of those small orange-red cells crossing the Eastern metro area from the SSE.

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#1451278 - 02/02/2018 11:17 Re: NSW/ACT day to day weather [Re: Grant]
Knot Offline
Weatherzone Addict

Registered: 01/05/2014
Posts: 2560
Loc: Toronto N.S.W
I think there should be just 2 aws per city. One to give temps near the coast. And one to represent places less influenced by seabreezes. So for Sydney have an aws at Manly or Bondi etc. And stick with Richmond for the other. Scrap the rest. For Newie leave Nobbys and have one at Edgeworth. I dont see the point of so many aws. Obs Hill might be the grand daddy of sites in Oz but it needs to go. Simply no relevance to it in the context of Sydneys current urban environment
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If you can't change something, there is only one option. Adapt!

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#1451279 - 02/02/2018 11:20 Re: NSW/ACT day to day weather [Re: Perfect Storm]
Morham Offline
Weather Freak

Registered: 23/01/2017
Posts: 109
Loc: Penrith, NSW
Originally Posted By: Perfect Storm
Hoping for a few showers to drop some H2O but alas they're coming from the SSE so not as likely but wouldn't rule it out.

A lot of trees starting to look stressed. Native regeneration areas just about all withered away or on their way.

Newly planted (10k or so on 30 July 2017) shrubs and trees all struggling. Ones close to the station much the same.

Shame, I was really glad they were greening up the metro and this part of Sydney even more but it just seems to have coincided with this dry spell. Arrgh!

Quote:
Fairfield Council will plant 10,000 trees, shrubs and ground cover plants at Carrawood Park in Carramar as part of National Tree Day on Sunday.


http://www.fairfieldchampion.com.au/story/4808156/10000-trees-on-the-way-for-event/

I actually planted a few trees around Penrith myself, with the predicted la nina i was hoping they'd get some good soakings! Most are now dead, one near me which i can water regularly is still going.

And there are so many conifer trees dying in western sydney over the last couple of years. 30,40,50 year old big trees all turning brown. I wonder if it's some pest killing them, or they have shorter life spans in the heat out here.

Either way, it sucks. Need more trees here.

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#1451280 - 02/02/2018 11:29 Re: NSW/ACT day to day weather [Re: Grant]
Knot Offline
Weatherzone Addict

Registered: 01/05/2014
Posts: 2560
Loc: Toronto N.S.W
A more tree city is a cooler city.
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If you can't change something, there is only one option. Adapt!

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#1451292 - 02/02/2018 13:38 Re: NSW/ACT day to day weather [Re: Grant]
Steve777 Offline
Weatherzone Addict

Registered: 20/10/2011
Posts: 4363
Loc: Artarmon (Sydney North Shore)
The more trees in the city and suburbs the better.

Re AWS, I think the more the better in a city with so many environments and microclimates like Sydney. I'd like one on the North Shore. Chatswood Bowling Club (where they measure rainfall) would be good.

P.S. Chatswood Bowling Club scored 2mm to 9:00 this morning and another 2mm since, probably in that short, sharp shower that passed over my place this morning. Not much, but there had only been 5mm in the preceding 23 days.

-----

The rain came from the low cloud drifting off the sea from the S-SE. That band of high cloud is totally unproductive. If it could only just shift a bit to the North.

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#1451293 - 02/02/2018 13:46 Re: NSW/ACT day to day weather [Re: Morham]
Rob G Offline
Weather Freak

Registered: 31/07/2003
Posts: 741
Loc: Porters Retreat NSW
Originally Posted By: Morham

And there are so many conifer trees dying in western sydney over the last couple of years. 30,40,50 year old big trees all turning brown. I wonder if it's some pest killing them, or they have shorter life spans in the heat out here.


The pest is the "high pressure ridge". It's telling on the 9 month rainfall deciles over central eastern NSW ( rain deciles - 9 month ) . Too bad we're not getting what they are in the NT and Kimberley.

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#1451295 - 02/02/2018 14:19 Re: NSW/ACT day to day weather [Re: Rob G]
ozthunder Offline
Weatherzone Addict

Registered: 23/09/2001
Posts: 3180
Loc: Mt Warrigal, NSW, Australia
Originally Posted By: Rob G
Originally Posted By: Morham

And there are so many conifer trees dying in western sydney over the last couple of years. 30,40,50 year old big trees all turning brown. I wonder if it's some pest killing them, or they have shorter life spans in the heat out here.


The pest is the "high pressure ridge". It's telling on the 9 month rainfall deciles over central eastern NSW ( rain deciles - 9 month ) . Too bad we're not getting what they are in the NT and Kimberley.


I know this going to sound like one of those "when I was a boy" lines, but when was the last time there was really serious Georges river, or Nepean River flood.
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http://ozthunder.com

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#1451298 - 02/02/2018 14:44 Re: NSW/ACT day to day weather [Re: Grant]
DaveM Offline
Meteorological Motor Mouth

Registered: 21/05/2001
Posts: 10135
Loc: Bathurst NSW about 700 m asl
Maybe 2010/ 2011?

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#1451299 - 02/02/2018 14:53 Re: NSW/ACT day to day weather [Re: Grant]
Knot Offline
Weatherzone Addict

Registered: 01/05/2014
Posts: 2560
Loc: Toronto N.S.W
Handy shower of rain.

Regarding the persistent high ridge, does anyone know why?

Sat pic looks like something out of a spray can or tail pipe
_________________________
If you can't change something, there is only one option. Adapt!

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#1451300 - 02/02/2018 15:00 Re: NSW/ACT day to day weather [Re: Rob G]
EddyG Offline
Meteorological Motor Mouth

Registered: 19/12/2008
Posts: 5055
Loc: Port Stephens NSW
Originally Posted By: Rob G
Too bad we're not getting what they are in the NT and Kimberley.


I watched a youtube vid yesterday of the heavy rain and thunder up in Darwin, the cloud was that low and visibility was only a couple hundred metres at best. I thought to myself I could handle a day or two of that inclement weather!!
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Rainfall
MTD - 44.4mm
YTD - 875.9mm
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#1451301 - 02/02/2018 15:01 Re: NSW/ACT day to day weather [Re: Grant]
Knot Offline
Weatherzone Addict

Registered: 01/05/2014
Posts: 2560
Loc: Toronto N.S.W
Amazing how quick some weather can develop. Almost looks like a misty rain depression out there. Crazy
_________________________
If you can't change something, there is only one option. Adapt!

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#1451303 - 02/02/2018 15:28 Re: NSW/ACT day to day weather [Re: Grant]
Rainbow Spirit Offline
Weather Freak

Registered: 10/11/2010
Posts: 597
Loc: Green Valley, just west of Liv...
The last truly big flood on the Georges was in 1988.

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#1451304 - 02/02/2018 15:48 Re: NSW/ACT day to day weather [Re: Rainbow Spirit]
ashestoashes Offline
Weather Freak

Registered: 22/10/2017
Posts: 440
Loc: Voyager Point (South West Sydn...
Originally Posted By: Rainbow Spirit
The last truly big flood on the Georges was in 1988.

I wouldn't rule out 2016 East Coast Low because flooding occurred in spite of all of the measures governments had put in since 1988.

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