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#1429092 - 28/07/2017 16:46 Re: NSW- Possible record-breaking July 'heatwave', 29th & 30th July 2017 [Re: Wave Rider]
Knot Offline
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Registered: 01/05/2014
Posts: 1859
Loc: Blue Bay N.S.W
Record heat in parts of WA today. Ikes. 35 in July .
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#1429094 - 28/07/2017 17:03 Re: NSW- Possible record-breaking July 'heatwave', 29th & 30th July 2017 [Re: Wave Rider]
Knot Offline
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Registered: 01/05/2014
Posts: 1859
Loc: Blue Bay N.S.W
I think Port Headland has the furthest back records in the Pilbara and has a 34.3 in 1948. Roebourne only back to 1957. It is warmer than PH so it might have reached 35 during the same winter heatwave. Only beat the old 2010 by 0.2.


Edited by Knot (28/07/2017 17:03)
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#1429095 - 28/07/2017 17:09 Re: NSW- Possible record-breaking July 'heatwave', 29th & 30th July 2017 [Re: Wave Rider]
Knot Offline
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Registered: 01/05/2014
Posts: 1859
Loc: Blue Bay N.S.W
West Roebuck was even warmer than Roebourne. It reached 35.8.

Does anyone have the info of where and when was Australias hottest July day on record. lol. Seems crazy discussing heat stuff in July


Edited by Knot (28/07/2017 17:17)
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#1429102 - 28/07/2017 18:16 Re: NSW- Possible record-breaking July 'heatwave', 29th & 30th July 2017 [Re: Knot]
Seabreeze Offline
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Registered: 18/09/2005
Posts: 10146
Loc: South West Rocks, NSW
Originally Posted By: Knot
West Roebuck was even warmer than Roebourne. It reached 35.8.

Does anyone have the info of where and when was Australias hottest July day on record. lol. Seems crazy discussing heat stuff in July
Here's a table with the 10 highest July maximums on record in Australia: http://www.bom.gov.au/cgi-bin/climate/ex...=2017&mon=7

The July record high for Australia is 38.3C at Kalumburu, set last year on July 24th.
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South West Rocks, NSW Mid North Coast:
September 2017 Rainfall: 2.6mm (Sep Avg. 56.6mm) // September 2017 Raindays: 1 (Sep Avg. 8.4 raindays)
Year-to-date Rainfall: 1248.2mm (Jan-Sep Avg. 1153.5mm) // Year-to-date Raindays: 106 (Jan-Sep Avg. 102.0 raindays)

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#1429110 - 28/07/2017 19:28 Re: NSW- Possible record-breaking July 'heatwave', 29th & 30th July 2017 [Re: Wave Rider]
Knot Offline
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Registered: 01/05/2014
Posts: 1859
Loc: Blue Bay N.S.W
Thanx Seabreeze
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#1429113 - 28/07/2017 20:14 Re: NSW- Possible record-breaking July 'heatwave', 29th & 30th July 2017 [Re: Wave Rider]
Knot Offline
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Registered: 01/05/2014
Posts: 1859
Loc: Blue Bay N.S.W
One further question Seabreeze. Seeing as the the top 10 July temps are in kind of the same geographic area (disregarding borders) ie the kimberely and into western NT, do you know what town may have the longest records? I thought Port Hedland might have longest in Pilbara. But north and nor west of there geographically who knows
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#1429118 - 28/07/2017 20:56 Re: NSW- Possible record-breaking July 'heatwave', 29th & 30th July 2017 [Re: Wave Rider]
yep Offline
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Registered: 04/07/2013
Posts: 336
Loc: Hobart
The link that Seabreeze put up there doesn't tell the whole story. The BoM only includes data from 1910 for the state and national extreme tables. They do this for 'consistency' purposes because that is Year 1 as far as their state and national monthly/seasonal/annual temperature averages goes too.

Some places may have longer records than 1910 and BoM will acknowledge those records if they are from stevenson screens, they are just not included in those tables.

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#1429120 - 28/07/2017 21:00 Re: NSW- Possible record-breaking July 'heatwave', 29th & 30th July 2017 [Re: Wave Rider]
yep Offline
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Registered: 04/07/2013
Posts: 336
Loc: Hobart
...for instance the December record for Tasmania is given as 39.8c at Friendly Beaches in 2015, but it was 40.6c in Hobart in 1897 (ss too ).


Edited by yep (28/07/2017 21:01)

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#1429121 - 28/07/2017 21:18 Re: NSW- Possible record-breaking July 'heatwave', 29th & 30th July 2017 [Re: Wave Rider]
Knot Offline
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Registered: 01/05/2014
Posts: 1859
Loc: Blue Bay N.S.W
Some good points there Yep. There really is such a lack of long standing records. I mentioned during the summer heatwaves in NSw that there are only a few right on the coast places with some good long records.
A huge distance in latitude and varied geography and virtually nothing of records. Yamba is one. I think the other was Merimbula maybe. Obs Hill of course is kind of coastal I guess.
To me its useless when I hear a record is broken if the records are less than 75 years. 75 or more years takes in a few more of the big driver cycles.



Edited by Knot (28/07/2017 21:22)
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#1429123 - 28/07/2017 21:40 Re: NSW- Possible record-breaking July 'heatwave', 29th & 30th July 2017 [Re: Wave Rider]
Blair Trewin Offline
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Registered: 13/07/2001
Posts: 3687
Loc: Melbourne, Australia
A lot of the pre-1957 daily temperature records exist on paper but haven't yet been digitised, so don't get picked up on a database trawl. This particularly affects the NSW coast, where the only ones which have been done are Sydney, Moruya Heads, Yamba and Port Macquarie (which I don't think is on the public website yet).

As far as northwest WA/NT are concerned, Halls Creek goes back pre-1910 but is at too high an elevation to be a candidate for national records. Otherwise for data back into the 1910s you're looking at the coastal sites (Darwin, Broome, Port Hedland, Derby). The two sites I know of in northern WA with significant amounts of undigitised pre-1957 data are Roebourne and Wyndham, the latter being the one with more potential for extreme winter heat (Wyndham held the Australian July record until last year).

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#1429124 - 28/07/2017 21:43 Re: NSW- Possible record-breaking July 'heatwave', 29th & 30th July 2017 [Re: Wave Rider]
Seabreeze Offline
Weatherzone Moderator

Registered: 18/09/2005
Posts: 10146
Loc: South West Rocks, NSW
Originally Posted By: Knot
One further question Seabreeze. Seeing as the the top 10 July temps are in kind of the same geographic area (disregarding borders) ie the kimberely and into western NT, do you know what town may have the longest records? I thought Port Hedland might have longest in Pilbara. But north and nor west of there geographically who knows
For those locations listed with the highest July temps on record and other weather stations nearby to them, according to the BOM site:

Kalumburu (1998-present)
Kalumburu Mission (closed, 1941-2005)

Wyndham (closed for temps**, 1968-2015)
Wyndham Aero (2000-present)
Wyndham Port (closed, 1938-1967***)

Timber Creek (closed for temps**, 1981-2014)

Fitzroy Crossing (1997-present)
Fitzroy Crossing Comp. (closed, 1957-1987***, very patchy after 1983)

Bradshaw's (site number 14954) records seem to be publically unviewable.

** the site is technically still open, but now only currently reports rainfall

*** The closed sites of Wyndham Port and Fitzroy Crossing Comp probably have high temp records privately viewable to the BOM beyond the range shown publically, as the average max temp records go back further (back to 1898 at Wyndham Port & 1955 at Fitzroy Crossing Comp) than the high temp records at these sites.

For future reference, all of the sites are searchable here, just select your appropriate data type: http://www.bom.gov.au/climate/data/index.shtml?bookmark=200&view=text or use the map tab.
To get closed down sites as well, un-tick the "Only show open stations" checkbox, or on the map, tick the "Closed" checkbox.
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South West Rocks, NSW Mid North Coast:
September 2017 Rainfall: 2.6mm (Sep Avg. 56.6mm) // September 2017 Raindays: 1 (Sep Avg. 8.4 raindays)
Year-to-date Rainfall: 1248.2mm (Jan-Sep Avg. 1153.5mm) // Year-to-date Raindays: 106 (Jan-Sep Avg. 102.0 raindays)

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#1429126 - 28/07/2017 22:02 Re: NSW- Possible record-breaking July 'heatwave', 29th & 30th July 2017 [Re: Wave Rider]
Blair Trewin Offline
Weatherzone Addict

Registered: 13/07/2001
Posts: 3687
Loc: Melbourne, Australia
Most, although not all, of the monthly mean temperatures have been digitised - the way to spot these is if the period of record for average maximum/minimum temperatures is different to that for extremes.

Another one you spot occasionally in NSW (not in any other states) is that the highest temperature of the month has been digitised but no other extremes have. Brewarrina is an example of this, with highest max back to 1911 but highest min and lowest max/min only to 1965.

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#1429138 - 29/07/2017 07:54 Re: NSW- Possible record-breaking July 'heatwave', 29th & 30th July 2017 [Re: Wave Rider]
Knot Offline
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Registered: 01/05/2014
Posts: 1859
Loc: Blue Bay N.S.W
Thank you Blair and Seabreeze for those posts.
Look fwd to more stats from places as they get digitalised.
Ahh it was Moruya not Merimbula.
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#1429141 - 29/07/2017 10:12 Re: NSW- Possible record-breaking July 'heatwave', 29th & 30th July 2017 [Re: Wave Rider]
DerekHV Offline
Weather Freak

Registered: 12/02/2010
Posts: 779
Loc: Aberglasslyn (Maitland) NSW
Cold morning, 2C was even colder than the 3C forecast.
Today has been downgraded to only a 20C maximum.
Certainly tomorrow's crack at a record max will be something out of the blue, that comes from nowhere, much like 1990 in many ways. (as Blair has pointed out in the day to day thread, this was a cold winter apart from the record max)
Most records come at the back end of sustained heatwaves or periods of above average temps, the culmination of getting all the right things in place, and then finally line up the record for last big hit at it.
Anyways, the record is not gone yet.


Edited by DerekHV (29/07/2017 10:18)

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#1429147 - 29/07/2017 11:35 Re: NSW- Possible record-breaking July 'heatwave', 29th & 30th July 2017 [Re: Wave Rider]
Long Road Home Offline
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Registered: 08/10/2007
Posts: 8316
Loc: Northern Beaches Syd
If it's to get to 27-28C as WR was predicting, it would have to get a move on you would think. 17.5C the peak so far at the airport, will need a rapid rise from here. 14.7C at obs hill

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#1429152 - 29/07/2017 11:51 Re: NSW- Possible record-breaking July 'heatwave', 29th & 30th July 2017 [Re: Long Road Home]
Wave Rider Offline
Meteorological Motor Mouth

Registered: 27/01/2014
Posts: 6207
Loc: Wollongong, NSW
Originally Posted By: Long Road Home
If it's to get to 27-28C as WR was predicting, it would have to get a move on you would think. 17.5C the peak so far at the airport, will need a rapid rise from here. 14.7C at obs hill


It looked like 27-28C was possible quite a few days ago for today but it obviously won't reach that now. I never specifically forecasted a maximum for today on this forum but on another one I was having a discussion with someone on Thursday and he and I both went 23C for today. And for Sunday he went 29 and I went 28C.

This was my response to Snowmi's forecast:

"I would still go 23C for Saturday (could change to 22) and 28C for Sunday. The next number I would guess for Sunday is 27C, given that there's not as many daylight hours to utilise the warm air above and mixing doesn't do as well in winter compared to summer. I'd probably forecast 29 if this setup occurred in summer."

I can copy and paste his part if you still don't believe me, but I'd prefer to keep it at that.


Edited by Wave Rider (29/07/2017 11:56)
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#1429154 - 29/07/2017 13:09 Re: NSW- Possible record-breaking July 'heatwave', 29th & 30th July 2017 [Re: Wave Rider]
WarrenTheSnowMan Offline
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Registered: 18/04/2016
Posts: 317
Loc: Frosty, Kemp's Creek
Wouldn't bother defending yourself WR, half the forum don't listen to reason nor have the intelligence to understand just exaclty what the actual [censored] you are saying.

I barely pay any attention to this forum and I know you said Sunday.

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#1429158 - 29/07/2017 13:23 Re: NSW- Possible record-breaking July 'heatwave', 29th & 30th July 2017 [Re: Wave Rider]
Knot Offline
Weatherzone Addict

Registered: 01/05/2014
Posts: 1859
Loc: Blue Bay N.S.W
Suprised Obs is still just sub 20. The colder than expected night having something to do with it. Some centres in land may not get as warm as forecast for same reason. But tomorrow a different story.
The 2013 record July is safe. All eyes on the 1990 record high tomorrow. A photo finish. Or a trounce. Or a dud. Time will tell
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#1429159 - 29/07/2017 13:53 Re: NSW- Possible record-breaking July 'heatwave', 29th & 30th July 2017 [Re: Wave Rider]
rain gauge Offline
Weatherzone Addict

Registered: 16/02/2006
Posts: 4435
Loc: Gorokan NSW 4klm West of the ...
I don't really see the big deal even if it does break a record. One weather station not represented of 95% of Sydney getting a brief moment of warm air (Just a fraction of a degree over the previous record) and the media will be screaming "Hottest July day on record for Sydney" Even if most of Sydney was about 24/25C most of the day. Ho hum
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#1429161 - 29/07/2017 15:13 Re: NSW- Possible record-breaking July 'heatwave', 29th & 30th July 2017 [Re: Wave Rider]
Funkyseefunkydo Offline
Weather Freak

Registered: 30/04/2007
Posts: 469
Loc: East Lake Macquarie
Looks like it won't reach over 22 tomorrow anywhere except the north west of NSW.

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