Australian Weather

David · Unread post by **David** » Sat 04/01/2020 15:53

BOM obs showing 47.7C at Penrith, West Sydney at 1.30pm local time! Apparently the record high in the Sydney area before today was 47.3 in 2018

David · Unread post by **David** » Sat 04/01/2020 16:21

48.2C max at Penrith now...
Edit - 48.5 @ 2.26pm

Willoughby · Unread post by **Willoughby** » Sat 04/01/2020 17:01

Wow that's insane.

Nev · Unread post by **Nev** » Sat 04/01/2020 17:20

David wrote: Sat 04/01/2020 15:53 Apparently the record high in the Sydney area before today was 47.3 in 2018

I believe the previous Sydney area record was 47.8C at Richmond set in Jan 1939.
Penrith up to 48.9C at 3:02pm LT…

Cyclone Tracy · Unread post by **Cyclone Tracy** » Sat 04/01/2020 19:09

Pyrocumulonimbus now sparking south of the ACT around 4.40pm local time. IR sat pic showing cloud tops near -60c over some of the firestorms with intense hot spots on the fire fronts.

Willoughby · Unread post by **Willoughby** » Sat 04/01/2020 19:51

Canberra broke it's all time record today too, with 44.0°C. Old record was 42.2°C in 2013.

http://www.bom.gov.au/nsw/observations/nswall.shtml

The 69.8°C reading at Cabramurra looks to be fire-related with gusts to 128 km/h at the time.

NZ Thunderstorm Soc · Sat 04/01/2020 19:53

David wrote: Sat 04/01/2020 16:21 48.2C max at Penrith now...
Edit - 48.5 @ 2.26pm

Would that be the temperature with the fires?

tornado · Unread post by **tornado** » Sat 04/01/2020 19:56

A few fire tornadoes been reported this past week. including one killing a firefighter

https://www.theguardian.com/australia-n ... alia-video

https://home.nzcity.co.nz/news/article.aspx?id=303624

Simon Culling · Unread post by **Simon Culling** » Mon 06/01/2020 01:29

I took a screenshot of the Cabramurra observations for posterity as they are incredible and must have been influenced by a nearby fire. Indeed, the NSW office of BOM issued a statement to that effect - the site ended up between intense pyrocumulonimbus on one side and new fire ignitions on the other. it seems to have survived as the readings go back to normal after an hour or so. The maximum was given as 69.8°C on the daily readings page for NSW.

https://twitter.com/BOM_NSW/status/1213549427710971904

Nev · Unread post by **Nev** » Mon 06/01/2020 09:26

Wow! Great examples of pyrocumulonimbus on Saturday arvo at Moss Vale about 100km SW of Sydney...

PyroCb at Moss Vale, Au ℅ Mike @astromike91 - Jan5.jpg

℅ Mike @astromike91 on twitter

PyroCb at Moss Vale, Au ℅ Aidan Morrison @QuixoticQuant - Jan5.jpg

℅ Aidan Morrison @QuixoticQuant on twitter

tgsnoopy · Unread post by **tgsnoopy** » Mon 06/01/2020 19:42

Video from Daniel Shaw VK2FSRV, well known international stormchaser

tornado · Unread post by **tornado** » Mon 06/01/2020 19:55

tgsnoopy wrote: Mon 06/01/2020 19:42 Video from Daniel Shaw VK2FSRV, well known international stormchaser

:e

so shocking to see. I wonder when those fires will ever stop.

Cyclone Tracy · Unread post by **Cyclone Tracy** » Fri 10/01/2020 13:27

The monsoon trough is playing it's part in changing atmospheric moisture level above large parts of the continent. EX TC Blake is feeding an atmospheric river into SE OZ in front of a cold front on the latest water vapour image. The positive IOD and SSW driven weather pattern is on the way out, which will be a huge relief for many.

Awhituobs · Unread post by **Awhituobs** » Fri 10/01/2020 13:40

I see there is this FB post that being share about the fires..saying ...and summer has only just started
but people do not realise that the second half of summer for OZ has more monsoonal rain/monsoonal lows and tropical cyclone rain and more easterly winds onto NSW
i.e gone are the drier spring westerly patterns (normally)

Cyclone Tracy · Unread post by **Cyclone Tracy** » Fri 10/01/2020 14:39

Yes, correct. NSW & QLD traditionally receive the moist rich airflow from now on.

Vic, S.A and Tasmania have had some of their most devastating fires in February (Ash Wednesday, Black Saturday), so their fire season from this point will depend on the follow up monsoonal surges into the southern hemisphere. Time will tell.

Willoughby · Unread post by **Willoughby** » Fri 10/01/2020 14:50

270mm in the 24 hrs to 9am today at Carnegie, WA from Ex-Blake. Huge amount for the very arid desert there.

image.png

We are receiving some welcoming very heavy rain right now over Darwin with the monsoonal low, will help a lot with the depleted water table in the rural area.

Richard · Unread post by **Richard** » Sat 11/01/2020 13:30

Huge dust cloud currently in the central outback

canvas.png

Cyclone Tracy · Unread post by **Cyclone Tracy** » Sat 11/01/2020 14:03

N.T have a new 24 hour rainfall record. Nice drop indeed.

spwill · Unread post by **spwill** » Mon 13/01/2020 08:16

Some wet weather coming up for eastern parts of Australia, an incoming trough with a moisture feed. The 2nd half of January could see below average tempertaures (overall) for South Australia and Victoria.

David · Unread post by **David** » Sat 18/01/2020 16:38

Some big deluges around the Brisbane area overnight. Gold Coast seaway AWS collected 250mm between 11pm and 7am. Hourly totals reached 76mm at Sunshine Coast AWS.

Willoughby · Unread post by **Willoughby** » Sat 18/01/2020 16:44

Yes some incredible falls there with a notable 330mm in the 24 hrs to 9am at Loder Creek Dam. Pacific Motorway shut in both directions this morning but has since reopened.

image.png

Awhituobs · Unread post by **Awhituobs** » Sat 18/01/2020 17:47

it sure takes a lot of rain for the australian rain radar to show anything other than light

NZ Thunderstorm Soc · Sat 18/01/2020 20:37

With the dryness of the ground with the recent bushfires, there would be significant run-off, of water, which could be as disastrous as the wildfires themselves.

Willoughby · Unread post by **Willoughby** » Mon 20/01/2020 13:22

Smashing monsoon here now, lots of thunder last night as well

cac08f46-5f13-49a4-8023-c73e509b8996.gif

Typical northwest monsoon sounding in place now with deep westerlies to 200 hPa, and very high precipitable water values.

image.png

Melbourne yesterday with destructive hail with anti-cyclonic right moving supercells:
https://www.abc.net.au/news/2020-01-20/ ... a/11881278

Dubbo, NSW yesterday with one of the worst dust storms there on record:
https://www.abc.net.au/news/rural/rural ... n/11881602

Willoughby · Unread post by **Willoughby** » Mon 20/01/2020 17:14

Parliament House in Canberra today!

https://twitter.com/tamsinroses/status/ ... 04224?s=19

More destructive hail

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