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#1434565 - 21/09/2017 12:43 Re: NSW/ACT day to day weather [Re: Grant]
kizz Online   content
Weatherzone Addict

Registered: 11/02/2002
Posts: 2044
Loc: Beacon Hill, Sydney 152m asl
Some impressively low dew points in the state's west now. Readings I would only expect to find at alpine sites under an inversion.

Tibooburra -15.7

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#1434575 - 21/09/2017 13:41 Re: NSW/ACT day to day weather [Re: Long Road Home]
Jimi Offline
Weather Freak

Registered: 15/03/2004
Posts: 979
Loc: Cammeray
Originally Posted By: Long Road Home
I really can't see obs hill getting to 25C today and 28C tomorrow with NE'lys on the coast, which are fairly cold for this time of year. 21-22C perhaps unless it's an early spike. Saturday different story as the W'lys take over.


Spot on (Steve too)

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#1434576 - 21/09/2017 13:45 Re: NSW/ACT day to day weather [Re: kizz]
Blair Trewin Offline
Weatherzone Addict

Registered: 13/07/2001
Posts: 3828
Loc: Melbourne, Australia
Originally Posted By: kizz
Some impressively low dew points in the state's west now. Readings I would only expect to find at alpine sites under an inversion.

Tibooburra -15.7


You see those in the interior every now and again at this time of year. Places like Alice Springs and Giles sometimes hit the -30s or -40s (not that there's that much difference in the amount of moisture between a dewpoint of -15 and one of -30: the relationship between dewpoint and water vapour pressure goes very nonlinear at such low levels).

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#1434577 - 21/09/2017 14:28 Re: NSW/ACT day to day weather [Re: Blair Trewin]
Kino Offline
Weatherzone Addict

Registered: 10/08/2017
Posts: 2689
Loc: Wollongong, NSW, Aus
Originally Posted By: Blair Trewin
Originally Posted By: kizz
Some impressively low dew points in the state's west now. Readings I would only expect to find at alpine sites under an inversion.

Tibooburra -15.7


You see those in the interior every now and again at this time of year. Places like Alice Springs and Giles sometimes hit the -30s or -40s (not that there's that much difference in the amount of moisture between a dewpoint of -15 and one of -30: the relationship between dewpoint and water vapour pressure goes very nonlinear at such low levels).


Big difference between 180m ASL (western NSW) and 600m ASL (Alice Springs) though????

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#1434582 - 21/09/2017 15:09 Re: NSW/ACT day to day weather [Re: Grant]
Kino Offline
Weatherzone Addict

Registered: 10/08/2017
Posts: 2689
Loc: Wollongong, NSW, Aus
Another ridiculously over-forecasted day here - 25 forecast; 22.8 reached (just above-average).

Wollongong was forecast at 24; topped out at a colder than average 19.6. Woeful performance really.

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#1434602 - 21/09/2017 17:20 Re: NSW/ACT day to day weather [Re: Grant]
DaveM Offline
Meteorological Motor Mouth

Registered: 21/05/2001
Posts: 10140
Loc: Bathurst NSW about 700 m asl
Should be some sunsets around the place tonight - all this dusty crud in the sky will surely give a lot of colour smile

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#1434604 - 21/09/2017 17:58 Re: NSW/ACT day to day weather [Re: DaveM]
Kino Offline
Weatherzone Addict

Registered: 10/08/2017
Posts: 2689
Loc: Wollongong, NSW, Aus
Originally Posted By: DaveM
Should be some sunsets around the place tonight - all this dusty crud in the sky will surely give a lot of colour smile


Great call - beaut salmon pink here now. BTW anyone heard from WR!!?? Unlike him to be quiet?

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#1434636 - 22/09/2017 07:57 Re: NSW/ACT day to day weather [Re: Grant]
Kino Offline
Weatherzone Addict

Registered: 10/08/2017
Posts: 2689
Loc: Wollongong, NSW, Aus
Another ridiculously over-forecast minimum - 10 was the forecast min, bottomed out at 3c which is 7c below the forecast and 5 below average.

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#1434642 - 22/09/2017 08:25 Re: NSW/ACT day to day weather [Re: Grant]
DerekHV Offline
Weatherzone Addict

Registered: 12/02/2010
Posts: 1202
Loc: Aberglasslyn (Maitland) NSW
The next week also has zero rain forecast.
There has only been 30mm of rain in over 3 months since after the June long weekend here.
Looks like this will go on for a while yet, feel sorry for the farmers more than anyone.

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#1434655 - 22/09/2017 09:21 Re: NSW/ACT day to day weather [Re: Grant]
ozthunder Offline
Weatherzone Addict

Registered: 23/09/2001
Posts: 3209
Loc: Mt Warrigal, NSW, Australia
Really hard to forecast temperatures in current very shallow sea breeze inversions, with NW/W winds just 500-600m above. You do not know just how much NW is going to mix down, or like yesterday the inversion holds steadfast. Yesterday got to 24C at Moss Vale at 678m, while the coastal strip remained very "spring" like. Your best guide although not always reliable is the smogo meter, yesterday it was a classic Los Angeles look. Sea breeze strength is unreliable, as strong NW winds aloft can actually reinforce the sea breeze.
_________________________
Michael Thompson
http://ozthunder.com

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#1434715 - 22/09/2017 14:44 Re: NSW/ACT day to day weather [Re: Grant]
Wave Rider Offline
Meteorological Motor Mouth

Registered: 27/01/2014
Posts: 7003
I'm around Kino poke

Ozthunder, I thought the haze yesterday was from the seabreeze but it wasn't because Bowral was exactly the same air quality with no seabreeze when I arrived yesterday arvo. Same smokey light coloured sky again. I (and a few others) are thinking it's dust or smoke in the air way above.
_________________________
The longer you wait for storms, the more you appreciate them.

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#1434717 - 22/09/2017 14:46 Re: NSW/ACT day to day weather [Re: Wave Rider]
Kino Offline
Weatherzone Addict

Registered: 10/08/2017
Posts: 2689
Loc: Wollongong, NSW, Aus
Originally Posted By: Wave Rider
I'm around Kino poke

Ozthunder, I thought the haze yesterday was from the seabreeze but it wasn't because Bowral was exactly the same air quality with no seabreeze when I arrived yesterday arvo. Same smokey light coloured sky again. I (and a few others) are thinking it's dust or smoke in the air way above.


Good point, it sure looks like dust being sucked in from inland with this dry hot airmass?

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#1434719 - 22/09/2017 14:48 Re: NSW/ACT day to day weather [Re: Grant]
Wave Rider Offline
Meteorological Motor Mouth

Registered: 27/01/2014
Posts: 7003
Certainly would be dry enough I would think and windy enough aloft. Maybe a duststorm will occur somewhere when the wind comes up, maybe Sunday. Almost 8 years to the day where got the big dust storm on 23rd Sept 2009.

Should be crystal clear air with such a dry airmass


Edited by Wave Rider (22/09/2017 14:52)
_________________________
The longer you wait for storms, the more you appreciate them.

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#1434720 - 22/09/2017 14:51 Re: NSW/ACT day to day weather [Re: Grant]
Jimi Offline
Weather Freak

Registered: 15/03/2004
Posts: 979
Loc: Cammeray
They're watching the dust a bit more closely in the NE NSW/SE QLD thread

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#1434721 - 22/09/2017 14:52 Re: NSW/ACT day to day weather [Re: Grant]
Wave Rider Offline
Meteorological Motor Mouth

Registered: 27/01/2014
Posts: 7003
Thanks, I'll check that thread out.
_________________________
The longer you wait for storms, the more you appreciate them.

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#1434758 - 22/09/2017 16:23 Re: NSW/ACT day to day weather [Re: Kino]
J Pabo Offline
Weather Freak

Registered: 12/10/2012
Posts: 403
Loc: Clydesdale NSW
Originally Posted By: Kino
Good point, it sure looks like dust being sucked in from inland with this dry hot airmass?


In Singo, we are used to dust. But ours is usually black.

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#1434833 - 23/09/2017 10:50 Re: NSW/ACT day to day weather [Re: Grant]
Kino Offline
Weatherzone Addict

Registered: 10/08/2017
Posts: 2689
Loc: Wollongong, NSW, Aus
Amazing variance atm in the Illawarra - the coast is hotter north with Bellambi on 30, Albion Park 28 and Kiama only 22!


Edited by Kino (23/09/2017 10:51)

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#1435120 - 25/09/2017 23:09 Re: NSW/ACT day to day weather [Re: Grant]
Kino Offline
Weatherzone Addict

Registered: 10/08/2017
Posts: 2689
Loc: Wollongong, NSW, Aus
Thank Gandalf that freakin wind has gone.


Edited by Kino (25/09/2017 23:09)

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#1435129 - 25/09/2017 23:39 Re: NSW/ACT day to day weather [Re: Grant]
Long Road Home Offline
Meteorological Motor Mouth

Registered: 08/10/2007
Posts: 8597
Loc: Northern Beaches Syd
Couldn't believe the ferocity of the wind in the Syd area today, but yeah thank god it's over. The synoptic didn't show anything out of the ordinary either, it must've been something subtle and local. Tomorrow looks calmer though with a high right overhead.

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#1435141 - 26/09/2017 09:16 Re: NSW/ACT day to day weather [Re: Grant]
DaveM Offline
Meteorological Motor Mouth

Registered: 21/05/2001
Posts: 10140
Loc: Bathurst NSW about 700 m asl
Down to around 1 degree again this morning. Lovely & sunny - heading to around 22 degrees today - should be rather pleasant smile

Access & EC thinking about a decent inland rain event in the lead up to, and possibly on race day here in Bathurst (about 5th - 7th). GFS says NO WAY JOSE but the other 2 are a little interested smile Worth a wait n see.

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