WPAC: YUTU - Post-Tropical

[supercane4867]

If this crosses Luzon it probably will die out in the middle of South China Sea. November shear there isn't fun.

[1900hurricane]

Looks like the system is taking on some backshear. It's not enough to penetrate to the core or anything like that, but outflow is restricted badly to that side of the system (convergent air aloft rather than divergent). This is probably preventing enough mass removal to clear the eye. If structure wasn't as stable as it currently is, I suspect a huge outer eyewall would be developing now.

[mrbagyo]

Just saw pic on Twitter @MaggieAnn670



Michael snapped lots of Pine tree - which is really impressive (but those are conifer /softwood)
But what about Yutu, it snapped the trunk of what I believe is a Casuarina Tree / Sheoak / Australian Pine (looks like pine but it's not) wood of this species is sometimes almost as hard as ebony and a known coastal windbreaker - MOR is well over 100 MPa. Madness

[dexterlabio]

Looks like the system is taking on some backshear. It's not enough to penetrate to the core or anything like that, but outflow is restricted badly to that side of the system (convergent air aloft rather than divergent). This is probably preventing enough mass removal to clear the eye. If structure wasn't as stable as it currently is, I suspect a huge outer eyewall would be developing now.

https://i.imgur.com/1xeYD7z.gif

https://i.imgur.com/959EsZB.gif

Never say never with typhoons just coming out of an EWRC to undergo yet another EWRC.

[Highteeld]

Truly a giant CDO

[NDG]

Question, is it common to see such a long westward tracking typhoon over the western Pacific during this time of the year?

[dexterlabio]

Question, is it common to see such a long westward tracking typhoon over the western Pacific during this time of the year?

I think there's a good chance a typhoon becomes a flat west runner at this time of the year when the high pressure steering ridge in East Asia is usually dominant. Some of the late season west runners I know are Angela of 1995 and Patsy (sometime in the 70's)...maybe we can also consider Haiyan as a straight west tracking typhoon.

[Highteeld]

T 7.0 -- just needs a little more warning of the eye and it will be a 7.5 again.

[1900hurricane]

Latest pass:

[doomhaMwx]

Question, is it common to see such a long westward tracking typhoon over the western Pacific during this time of the year?

I think there's a good chance a typhoon becomes a flat west runner at this time of the year when the high pressure steering ridge in East Asia is usually dominant. Some of the late season west runners I know are Angela of 1995 and Patsy (sometime in the 70's)...maybe we can also consider Haiyan as a straight west tracking typhoon.

Heh how about this. Rita 1978. Also an October typhoon.

[1900hurricane]

 https://twitter.com/1900hurricane/status/1055862490347814913

[1900hurricane]

Question, is it common to see such a long westward tracking typhoon over the western Pacific during this time of the year?

I did a search from Digital Typhoon showing all classified systems with a dissipation in November (n = 172) since that is likely Yutu's dissipation month, and the atmosphere seems to be in late-season mode. There were still plenty of recurves, but there is a high track density below 20ºN with many westward tracks beneath the zonal deep layer subtropical ridging that frequents the basin this time of year.

[Highteeld]

[Highteeld]

I'm just waiting for the CDO to become bigger than the Himawari Target viewer...

[mrbagyo]

Question, is it common to see such a long westward tracking typhoon over the western Pacific during this time of the year?

Typhoon Rita - 1978

Typhoon Betty - 1980

Typhoon Nancy - 1982

Typhoon Dot -1985

Typhoon Lynn - 1987

Typhoon Elsie - 1989

Typhoon Ruth - 1991

Typhoon Ira -1993

Typhoon Angela -1995

Typhoon Koppu - 2015

[Highteeld]

2018OCT26 181000 7.2 907.6 146.0 7.1 7.6 7.6 NO LIMIT ON OFF OFF OFF 0.42 -82.85 EYE 16 IR 92.2 17.65 -135.91 ARCHER HIM-8 21.4

[Highteeld]

31W YUTU 181026 1800 17.6N 136.2E WPAC 140 918

[Highteeld]

Instantaneous T 7.5 with the token WMG pixel in the eye

[michelinj]

Hi everyone,

I’ve got a basic understanding of the dvorak technique but could someone list out what all the 3letter codes stand for or mean (apart from colour on the image) As CDG etc... can get quite confusing!

Thanks

[Highteeld]

 https://twitter.com/RyanMaue/status/1055902330607058945