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#1466854 - 03/07/2018 17:47 Re: Atmospheric Rivers [Re: Flowin]
Flowin Offline
Weather Freak

Registered: 15/10/2017
Posts: 751
Loc: Pinjarra Hills, Qld

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#1467870 - 26/07/2018 19:45 Re: Atmospheric Rivers [Re: Flowin]
Seira Offline
Meteorological Motor Mouth

Registered: 27/08/2003
Posts: 7676
Loc: Adelaide Hills
There may be a remote chance some time in the next 24-48 hours smile of seeing evidence of a tropical in-feed near the interior, with substantial humidity. One of the models (GFS) is showing increasing [magnitude] of pressure vertical velocity at the 700-hPa level north of Adelaide.


Edited by Seira (26/07/2018 19:49)

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#1467991 - 30/07/2018 11:35 Re: Atmospheric Rivers [Re: Flowin]
Petros Offline
Meteorological Motor Mouth

Registered: 30/12/2002
Posts: 7820
Loc: Maffra, Central Gippsland, Vi...
.......resulting in this, according to AccG:


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#1489232 - 05/02/2019 17:21 Re: Atmospheric Rivers [Re: Flowin]
Flowin Offline
Weather Freak

Registered: 15/10/2017
Posts: 751
Loc: Pinjarra Hills, Qld
This total precipitable water image product for 00 UTC 3 Feb 2019, looks to me like what I would describe as a possible Atmospheric River affecting the NQ region near Townsville for that heavy rain that brought on the peak of the TSV flood on Sunday afternoon and evening.
ftp://ftp.ssec.wisc.edu/pub/mtpw2/images/tpw_nrl_colors/ausf/201902/comp20190203.000000_tpw.png
It may not exactly fit the US or other international definition of an AR (I don't know for sure) but it sure appeared to be a concentrated stream of atmosphere conveying large water amounts.
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#1490836 - 18/02/2019 17:17 Re: Atmospheric Rivers [Re: Flowin]
Flowin Offline
Weather Freak

Registered: 15/10/2017
Posts: 751
Loc: Pinjarra Hills, Qld
Not relevant to Australia, but of note for Atmospheric Rivers worldwide, California got hit by a significant AR event in the last week. The Americans have now developed a classification system for ARs and apparently is was a Cat 4 event.
Here is a news article link for the recent event (there are many other articles)
https://www.wired.com/story/atmospheric-rivers-get-an-intensity-scale-like-hurricanes/

Here is the technical paper about the new AR severity categories
https://journals.ametsoc.org/doi/10.1175/BAMS-D-18-0023.1

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#1490843 - 18/02/2019 17:59 Re: Atmospheric Rivers [Re: Flowin]
Kino Offline
Weatherzone Addict

Registered: 10/08/2017
Posts: 3146
Loc: Wollongong, NSW, Aus
Oh thatís interesting thanks. Be good to implement that here.

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#1490967 - Yesterday at 09:00 Re: Atmospheric Rivers [Re: Flowin]
ozone doug Offline
Weatherzone Addict

Registered: 06/11/2006
Posts: 1897
Loc: Roma SW QLD Eye to the West...
Thanks for the link Flowin. I agree it should be implemented in Australia.
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BOM Stormspotter G0388 Roma S W Queensland Formerly Redcliffe.
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#1490976 - Yesterday at 09:46 Re: Atmospheric Rivers [Re: Flowin]
Steve777 Offline
Weatherzone Addict

Registered: 20/10/2011
Posts: 4785
Loc: Artarmon (Sydney North Shore)
So a NW Cloud Band would be an example of an 'Atmospheric River'.

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