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#1486055 - 19/01/2019 17:31 Re: NSW / ACT - Severe Mid Summer Heatwave - January 15-19 2019 [Re: Steve777]
Wave Rider Offline
Meteorological Motor Mouth

Registered: 27/01/2014
Posts: 7236
Thanks for the info Blair, interesting stuff. Canberra does have the Brindabellas, yes, but the winds mostly curve around them as a NWly when hitting Canberra and hence NWly is the most common wind direction in winter there. July 2018 for example has NW or NNW winds almost every day at 3pm but not one occurrance of SW winds.

It is reasonably common Eigerwand. In July 2018 alone, the 4th (18.2 vs 15.8), 12th (12.0 vs 11.6), 22nd (10.8 vs 10.6), 25th (17.0 vs 15.8) and 30th (12.0 vs 11.5) were all warmer at Cooma than Canberra, although some of those were after very cold nights so could be inversion related a lot of the time too.
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#1486057 - 19/01/2019 17:56 Re: NSW / ACT - Severe Mid Summer Heatwave - January 15-19 2019 [Re: Steve777]
Blair Trewin Offline
Weatherzone Addict

Registered: 13/07/2001
Posts: 3944
Loc: Melbourne, Australia
Incidentally, it's not every day that Kempsey and Lismore feature in the bottom 10 minimum temperatures in NSW, as they did yesterday.

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#1486071 - 19/01/2019 20:10 Re: NSW / ACT - Severe Mid Summer Heatwave - January 15-19 2019 [Re: Wave Rider]
Sidney Offline
Weather Freak

Registered: 20/12/2013
Posts: 718
Loc: Macquarie fields ( South west ...
I like to travel to Canberra a few times a year especially during winter.
Quite a few of those trips there has been some sort of freezing fog that hangs around till the early arvo. One of the most memorable was i think 2 years ago where it was still -2c late in the morning and there was severe frost everywhere even on tree branches. While traveling towards Canberra on the hume highway it was sunny and the temps were well into the positives apart from Lake George which shares similar behavior.

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#1486079 - 19/01/2019 21:22 Re: NSW / ACT - Severe Mid Summer Heatwave - January 15-19 2019 [Re: Sidney]
Homer Offline
Meteorological Motor Mouth

Registered: 16/06/2007
Posts: 6224
Loc: Dural
Originally Posted By: Sidney
I like to travel to Canberra a few times a year especially during winter.
Quite a few of those trips there has been some sort of freezing fog that hangs around till the early arvo. One of the most memorable was i think 2 years ago where it was still -2c late in the morning and there was severe frost everywhere even on tree branches. While traveling towards Canberra on the hume highway it was sunny and the temps were well into the positives apart from Lake George which shares similar behavior.


Sid,

I experienced similar about 10 years ago on a trip to Jindabyne.
Approaching Cooma, we drove through a freezing fog just after Bredbo.

Canberra temp was about 3 at around 11.00 am. Clear and sunny at the time.

Then after Bredbo, we saw a large fog ahead and eventually drove into it. The temp dropped to -1, the ground and trees were covered in frost.
It was quite surreal.
We arrived in Cooma for a lunch stop. The fog was thinning but there was still frost everywhere. This was now midday. A light breeze had blown up when we were having lunch in the park at Cooma. It was blowing the frost from the trees and it looked like drizzly snow. The temp was just one degree now.
In the afternoon after we had arrived at Kalkite (near Jindabyne), we went for a walk in the afternoon sunshine, and puddles along the street in potholes beside the road were still frozen over with a layer of ice. The kids loved smashing the ice open with rocks.
I love talking about memories like this during summer heatwaves.
It keeps me cool. smile

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#1486081 - 19/01/2019 21:31 Re: NSW / ACT - Severe Mid Summer Heatwave - January 15-19 2019 [Re: Steve777]
EddyG Offline
Meteorological Motor Mouth

Registered: 19/12/2008
Posts: 5428
Loc: Port Stephens NSW
Some very light drizzle here tonight and its even ticked the rain gauge over, so far 0.6mm.
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2018 - 1145.9mm
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#1486083 - 19/01/2019 21:40 Re: NSW / ACT - Severe Mid Summer Heatwave - January 15-19 2019 [Re: Wave Rider]
Eigerwand Offline
Weather Freak

Registered: 28/05/2012
Posts: 431
Originally Posted By: Wave Rider
Thanks for the info Blair, interesting stuff. Canberra does have the Brindabellas, yes, but the winds mostly curve around them as a NWly when hitting Canberra and hence NWly is the most common wind direction in winter there. July 2018 for example has NW or NNW winds almost every day at 3pm but not one occurrance of SW winds.

It is reasonably common Eigerwand. In July 2018 alone, the 4th (18.2 vs 15.8), 12th (12.0 vs 11.6), 22nd (10.8 vs 10.6), 25th (17.0 vs 15.8) and 30th (12.0 vs 11.5) were all warmer at Cooma than Canberra, although some of those were after very cold nights so could be inversion related a lot of the time too.


Maybe for the figures for the town but I always use Cooma Aiport. Do that and the only one of your comparison dates that holds is the 4th. I have suspected Cooma town readings to be questionable at times and this only goes to strengthen my suspicions. Anyway, the airport isn’t really that far out of town and I would say gives a better picture of the region as a whole. Clearly the figures for Cooma AP demonstrates that even on the lee side of the highest mountain range on the mainland, any down slope/föhn effects are marginal, perhaps with the odd day here or there out of step.

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#1486085 - 19/01/2019 21:59 Re: NSW / ACT - Severe Mid Summer Heatwave - January 15-19 2019 [Re: Steve777]
Blair Trewin Offline
Weatherzone Addict

Registered: 13/07/2001
Posts: 3944
Loc: Melbourne, Australia
Remember the airport is >100m higher than the town.

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#1486086 - 19/01/2019 22:12 Re: NSW / ACT - Severe Mid Summer Heatwave - January 15-19 2019 [Re: Steve777]
Steve777 Offline
Weatherzone Addict

Registered: 20/10/2011
Posts: 4908
Loc: Artarmon (Sydney North Shore)
Just thought I'd put together a wrap-up of maxima for the event.

Below are the maxima for selected sites for January 14-19. The event finished on the coast South of Newcastle yesterday. The Hunter and inland got an extra day:
Code:
Sydney OH:     28, 29, 30, 29, 32, 26
Sydney O Pk:   31, 33, 33, 34, 38, 28
Richmond:      34, 40, 39, 41, 41, 29

Cessnock:      34, 40, 41, 41, 42, 39

Bathurst:      35, 37, 38, 38, 37, 33

Canberra:      36, 40, 41, 42, 40, 36

Albion Park:   28, 28, 30, 29, 30, 28

Bellambi was 25 or 26 every day, 23 today.

This was a very significant event inland. Canberra's numbers are extraordinary. Add 4 or 5 to get a sea level equivalent.

On the other hand, if you don't like heat and stayed close to the beach or camped in Observatory Park, you were OK.


Edited by Steve777 (19/01/2019 22:19)
Edit Reason: Canberra 14th

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#1486087 - 19/01/2019 22:20 Re: NSW / ACT - Severe Mid Summer Heatwave - January 15-19 2019 [Re: Steve777]
DaveM Offline
Meteorological Motor Mouth

Registered: 21/05/2001
Posts: 10168
Loc: Bathurst NSW about 700 m asl
Actually had a solid short storm in parts of town about 5pm

Boy it was brief but solid, dropped the temp from about 32 to 21 in no time.

Shame it didn’t stick around long. Currently a pleasant 22 now, lovely for a change 😁👍

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#1486091 - 19/01/2019 22:57 Re: NSW / ACT - Severe Mid Summer Heatwave - January 15-19 2019 [Re: Steve777]
Rainbow Spirit Offline
Weather Freak

Registered: 10/11/2010
Posts: 692
Loc: Green Valley, just west of Liv...
At last a lovely cool night, now for some peaceful sleep.

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#1486094 - 20/01/2019 00:19 Re: NSW / ACT - Severe Mid Summer Heatwave - January 15-19 2019 [Re: Steve777]
Adaminaby Angler Online   content
Weather Freak

Registered: 26/03/2018
Posts: 223
Loc: Anglers Reach NSW; 1,290 m AMS...
If we were to compare Cooma AP (930 m AMSL) with the likes of more exposed, westerly regions, then the disparity becomes ever more plain; Tumbarumba PO lies only at 645 m AMSL, yet yields similar winter maximums to Cooma AP at 930 m AMSL; Batlow (771 m AMSL) yields 9° C average highs in midwinter; Bago State Forest (1,128 m AMSL) yields 6° C average highs—the difference in latitude can also be seen, whilst comparing Bago ST to Oberon: 35°-36° S vs. 33°-34° S.

Tumbarumba and the like also yield hotter summers relative to their altitude and latitude than Cooma AP; more continental, alongside snowier winters and stormier summers.

~800 m AMSL:

Windward https://en.wikipedia.org/wiki/Batlow

Leeward https://en.m.wikipedia.org/wiki/Cooma

~1,100 m AMSL:

Windward https://en.m.wikipedia.org/wiki/Laurel_Hill

Leeward https://en.m.wikipedia.org/wiki/Nimmitabel
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#1486096 - 20/01/2019 00:56 Re: NSW / ACT - Severe Mid Summer Heatwave - January 15-19 2019 [Re: Steve777]
DerekHV Offline
Weatherzone Addict

Registered: 12/02/2010
Posts: 1257
Loc: Aberglasslyn (Maitland) NSW
Finally some reprieve.
Thank God the solar panels are arriving on the 31st Jan as well.
The aircon required here now is off the charts.

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