High Level Cyclonic Vortex (VCAN) ?

[mbmpc]

what is this phenomenon is it a vcan?

[idefix37]

@mbmpc
It is possibly what you call in Brazil “ Vórtices Ciclônicos de Altos Níveis (VCAN)”.

It is more obvious if you enlarge the view and set Geopotential isolines. Here Wind at 300hPa level is shown with my customised color scale. Winds are clockwise and the geopotential Low is 9702 meters.

It is called “gota fria” in Spain, “gotas de ar frio” in Portugal or “cut-off low” in English.
https://en.m.wikipedia.org/wiki/Cold_drop#:~:text=A cold drop (from%20the,along%20the%20Spanish%20Mediterranean%20coast.

[mbmpc]

@idefix37 what is this?

[idefix37]

@mbmpc
Have you read my reply to your first post?

[mbmpc]

@idefix37 Yes

[idefix37]

@mbmpc
Here is some additional information:
https://en.m.wikipedia.org/wiki/Cut-off_low#:~:text=A cut-off low is,the core of the low.