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#1434976 - 24/09/2017 10:58 Re: September 21st onwards, possible record heat during September 2017 [Re: Jimi]
eauetsoleil Offline
Weather Freak

Registered: 03/01/2016
Posts: 217
Loc: Bexley North
Originally Posted By: Jimi
[quote=DerekHV]

SMH has actually done pretty well there IMO to describe the actual overnight min but then clarify the nature of the 9am reset


Had the SMH wrote something like

"Sydney's overnight minimum temperature was 25.7 degrees, beating the September 9am 9am 24-hour reporting period previous highest minimum temp record (22.0) by 1.0 degrees when the temperature dropped to 23.0 at 9am yesterday morning."

then I would agree with you.

But the omission of key facts, like either the 22.0 previous record, the new 23.0 record, or even what the previous September record was for an "overnight" minimum temp, and what the definition was for "overnight", and what the definition of minimum temp is on the BOM Observations page, does not fit within my criteria of having done "pretty well". IMO

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#1434977 - 24/09/2017 10:59 Re: September 21st onwards, possible record heat during September 2017 [Re: DerekHV]
rain gauge Offline
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Registered: 16/02/2006
Posts: 4444
Loc: Gorokan NSW 4klm West of the ...
Strange overnight temps.

Lake Macquarie was 15C at 2am.
And 30C at 2:30 am
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#1434979 - 24/09/2017 11:07 Re: September 21st onwards, possible record heat during September 2017 [Re: DerekHV]
Wave Rider Offline
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Registered: 27/01/2014
Posts: 6438
Loc: Wollongong and Berrima NSW
Pretty hot in the north, 34C at Tocal, 36 at Taree and 37 at Kempsey.

Here it's pretty miserable and cloudy with 18C currently.
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#1434981 - 24/09/2017 11:15 Re: September 21st onwards, possible record heat during September 2017 [Re: Wave Rider]
DerekHV Offline
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Registered: 12/02/2010
Posts: 841
Loc: Aberglasslyn (Maitland) NSW
Originally Posted By: Wave Rider
Pretty hot in the north, 34C at Tocal, 36 at Taree and 37 at Kempsey.

Here it's pretty miserable and cloudy with 18C currently.


Taree used to top the state a fair bit back in the day, before they moved the weather station east to the airport in the late 90s.
But yes, it looks like peak heat will be around there to Kempsey today.

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#1434983 - 24/09/2017 11:33 Re: September 21st onwards, possible record heat during September 2017 [Re: DerekHV]
Wave Rider Offline
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Registered: 27/01/2014
Posts: 6438
Loc: Wollongong and Berrima NSW
Yeah that would make sense given that the town would be away from the sea breeze on many days.

Kempsey seems to get very hot, as does Port Macquarie when the sea breeze gets pushed away.
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2017-18 storm total= 5
Oct 25th
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#1434985 - 24/09/2017 11:56 Re: September 21st onwards, possible record heat during September 2017 [Re: DerekHV]
Kino Online   content
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Registered: 10/08/2017
Posts: 1272
Loc: Wollongong, NSW, Aus
So much dust everywhere! Some dark looking anvil wafting across atm

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#1434997 - 24/09/2017 15:40 Re: September 21st onwards, possible record heat during September 2017 [Re: DerekHV]
Steve777 Online   content
Weatherzone Addict

Registered: 20/10/2011
Posts: 3597
Loc: Artarmon (Sydney North Shore)
Funny weather today. At OH it's been stuck in the high 20s for over 24 hours. The cloud has stuck around since early morning, backbuilding from the coast, with no sunny break longer than about 10 minutes that I've noticed. Nowhere in Sydney has reached 31 since the 9:00 cutoff. OH's maximum looks to have been 29.2, with most sites around 28-30.

Back to more normal weather for the time being, but still above average with no sign of significant rain in sight.


Edited by Steve777 (24/09/2017 15:43)

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#1435000 - 24/09/2017 16:14 Re: September 21st onwards, possible record heat during September 2017 [Re: DerekHV]
Kino Online   content
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Registered: 10/08/2017
Posts: 1272
Loc: Wollongong, NSW, Aus
Plenty of sun here but cant get past 28,wind too strong and cooler than yesterday. Also, I think the amount of dust in the air is also keeping a lid on temps - not worth washing the car a yet, itll be dirtier after Ive finished.

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#1435001 - 24/09/2017 16:17 Re: September 21st onwards, possible record heat during September 2017 [Re: DerekHV]
EddyG Offline
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Registered: 19/12/2008
Posts: 4346
Loc: NSW Port Stephens
Yes Steve777, funny sort of a day. Southwest change came through right on lunch and cooled things down considerably by 7-8 degrees, then the breeze became onshore for a brief period cooling things even further. Since the wind has died down to nothing the temp has warmed up slightly. Currently 25c and very hazy skies!!

Nice afternoon for beers and BBQ too!!


Edited by EddyG (24/09/2017 16:20)
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#1435002 - 24/09/2017 16:23 Re: September 21st onwards, possible record heat during September 2017 [Re: DerekHV]
Petar @ Sdny Offline
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Registered: 09/03/2007
Posts: 529
Loc: South West Sydney
Much better now temperature wise smile That was hell last night.
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#1435004 - 24/09/2017 16:34 Re: September 21st onwards, possible record heat during September 2017 [Re: DerekHV]
Kino Online   content
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Registered: 10/08/2017
Posts: 1272
Loc: Wollongong, NSW, Aus


Plenty of dust to be seen on the vis satpic!


Edited by Kino (24/09/2017 16:44)

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#1435005 - 24/09/2017 16:37 Re: September 21st onwards, possible record heat during September 2017 [Re: DerekHV]
EddyG Offline
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Registered: 19/12/2008
Posts: 4346
Loc: NSW Port Stephens
Should be a nice sunset too!!




Edited by EddyG (24/09/2017 16:38)
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#1435009 - 24/09/2017 17:26 Re: September 21st onwards, possible record heat during September 2017 [Re: eauetsoleil]
Blair Trewin Offline
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Registered: 13/07/2001
Posts: 3699
Loc: Melbourne, Australia
Originally Posted By: eauetsoleil
Originally Posted By: DerekHV

The 24 hour minimum means record high minimums, and sometimes even record low, are almost impossible to beat, as well as being unrepresentative of what happened at night.


So does anyone or anywhere keep records for NSW overnight maximum minimum temps from between say midnight and sunrise?


It's possible to generate them for any site which has 1-minute data (we've got an internal tool to do that), but few sites have more than 10-15 years of 1-minute data. For longer-term stuff, if I'm in the office (which I'm not) I generally search 3am and 6am temperatures to look for possible candidates for extremely hot nights historically.

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#1435020 - 24/09/2017 19:06 Re: September 21st onwards, possible record heat during September 2017 [Re: DerekHV]
DerekHV Offline
Weather Freak

Registered: 12/02/2010
Posts: 841
Loc: Aberglasslyn (Maitland) NSW
It appears a 2nd crack at the state record next week is back on again now it seems.
Looks like Wilcannia's record yesterday could well be short-lived.
This follows intense heat building in Birdsville and Qld channel country, getting to 42C there.
Brewarrina and Wanaaring going for 42C on Wed, Collarenebri and Walgett going for 41C, Bourke 40C.
This event will not be statewide though, only in this region.
Wilcannia and nearby White Cliffs though are only going for 32-33C, so not in the mix this time.


Edited by DerekHV (24/09/2017 19:11)

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#1435021 - 24/09/2017 19:27 Re: September 21st onwards, possible record heat during September 2017 [Re: DerekHV]
DerekHV Offline
Weather Freak

Registered: 12/02/2010
Posts: 841
Loc: Aberglasslyn (Maitland) NSW
Looks like Kempsey, Coffs and Grafton were top in the state today with 39C, local records as well. Port Macquarie also 38C.

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#1435027 - 24/09/2017 20:18 Re: September 21st onwards, possible record heat during September 2017 [Re: DerekHV]
CoastalStorm22 Offline
Weatherzone Addict

Registered: 10/07/2006
Posts: 2704
Loc: Lane Cove, Sydney, NSW
Tonight's sunset over the Great Sydney Desert!











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#1435032 - 24/09/2017 20:51 Re: September 21st onwards, possible record heat during September 2017 [Re: DerekHV]
Wave Rider Offline
Meteorological Motor Mouth

Registered: 27/01/2014
Posts: 6438
Loc: Wollongong and Berrima NSW
I watched the sun set from here too- looked very similar with the dusty and desert looking horizon.
_________________________
The longer you wait for storms, the more you appreciate them.

2017-18 storm total= 5
Oct 25th
Nov 6th(3), 17th

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#1435042 - 24/09/2017 21:31 Re: September 21st onwards, possible record heat during September 2017 [Re: DerekHV]
Homer Offline
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Registered: 16/06/2007
Posts: 5289
Loc: Dural
Stunning photos CS22!!

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#1435043 - 24/09/2017 21:41 Re: September 21st onwards, possible record heat during September 2017 [Re: DerekHV]
Wave Rider Offline
Meteorological Motor Mouth

Registered: 27/01/2014
Posts: 6438
Loc: Wollongong and Berrima NSW
Today was a rather odd day. Plenty of cloud but periods of half sunshine and then even a few drops of rain around 12:30-1pm as I was driving around the countryside. Then it cleared to sunshine in the late arvo and the sky was a slightly unusual colour. Very light blue at rhe horizon but this weird almost greyish blue overhead. By 4pm there was not a cloud in the sky. But yet the temp more or less hovered around 18C for the whole day, despite a mix of cloud, rain drops and sun at seperate times of the day.

Also rained a little last night and every rain drop on the car left red dust on the car. Gave it a hose and the drops dried very quickly into red dust again so there must've been very fine dust in the air as well as the rain drops.


Edited by Wave Rider (24/09/2017 21:46)
_________________________
The longer you wait for storms, the more you appreciate them.

2017-18 storm total= 5
Oct 25th
Nov 6th(3), 17th

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#1435050 - 24/09/2017 22:38 Re: September 21st onwards, possible record heat during September 2017 [Re: DerekHV]
Steve777 Online   content
Weatherzone Addict

Registered: 20/10/2011
Posts: 3597
Loc: Artarmon (Sydney North Shore)
Yes great sunset pictures CS22.

Talk of dusty skies brought to my mind the great dust storm of 2009. Yesterday was the 8th anniversary. Here's some vision, not mine, just something I found of You Tube. There are lots to choose from:

Sydney Dust Storm 23 Sept 2009

There's a thread about it here: NSW Dust Storm. Unfortunately most of the pictures were on Photobucket.

-----

A very pleasant night outside. Little wind, about 20 on the coast, down to 12 in the usual cold hollows.


Edited by Steve777 (24/09/2017 22:44)
Edit Reason: Fix link

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