19 settembre 09 supercella sul mar Ligure

**andychaser** · 01/10/2009, 16:32

Originariamente Scritto da Aragorth

Well single cell not, multicell not likely... what else can be? Photos are suspicious, though RTS 12z Milano is not that good..but this was more to the south...

Hi marko! Why it isn't a single cell for you?

**NikoDj** · 01/10/2009, 16:35

io rimango del mio parere, e cioè escludo la Supercella.

**Aragorth** · 01/10/2009, 22:45

Originariamente Scritto da andychaser

Hi marko! Why it isn't a single cell for you?

one can't buy me even with this that its a single cell... or to avoid confusion, I mean uni-cell as a single cell, so no cluster: http://img29.imageshack.us/img29/3285/scfulmini.png

I think its obvious its an organized storm. Just look at those photos, looks a bit more than a normal single cell, isn't it?

**andychaser** · 01/10/2009, 22:45

Originariamente Scritto da NikoDj

io rimango del mio parere, e cioè escludo la Supercella.

Io pure!!

nuvolone · 01/10/2009, 23:09

Marco excuse but the horizontal rotation is not very unusual in this case?
direction of rotation that could justify a mesociclone reversed in case of realignment? I agree with you that this storm is very organized indeed ... if there were only convergence would not have spoken of supercell

**andychaser** · 01/10/2009, 23:29

Originariamente Scritto da nuvolone

Marco excuse but the horizontal rotation is not very unusual in this case?
direction of rotation that could justify a mesociclone reversed in case of realignment? I agree with you that this storm is very organized indeed ... if there were only convergence would not have spoken of supercell

Ciao! Per me non è presente una rotazione ma solo l'esplosione della cella.

Dal radar inoltre non sembra esserci nessun echo particolare, anzi sembra che il nucleo continui a rigenerarsi nella stessa zona circa: per questo potrebbe benissimo trattarsi di un sistema multicella (rigenerante) nel quale gli updraft si formano e poco dopo uno nuovo prende il posto del precedente.

Da quello che ho visto nelle carte non sembra esserci nessuno shear particolare e i venti in quota erano tutti da S-SW con al suolo un SW pieno, che avrebbe potutto favorire la nascita dei nuovi updraft propio a SW del sistema.

**NikoDj** · 02/10/2009, 00:16

Originariamente Scritto da andychaser

Ciao! Per me non è presente una rotazione ma solo l'esplosione della cella.

Dal radar inoltre non sembra esserci nessun echo particolare, anzi sembra che il nucleo continui a rigenerarsi nella stessa zona circa: per questo potrebbe benissimo trattarsi di un sistema multicella (rigenerante) nel quale gli updraft si formano e poco dopo uno nuovo prende il posto del precedente.

Da quello che ho visto nelle carte non sembra esserci nessuno shear particolare e i venti in quota erano tutti da S-SW con al suolo un SW pieno, che avrebbe potutto favorire la nascita dei nuovi updraft propio a SW del sistema.

Concordo in pieno

**Aragorth** · 02/10/2009, 08:34

Originariamente Scritto da nuvolone

Marco excuse but the horizontal rotation is not very unusual in this case?
direction of rotation that could justify a mesociclone reversed in case of realignment? I agree with you that this storm is very organized indeed ... if there were only convergence would not have spoken of supercell

the problem is that people often call a lot worse cells/storms supercellular and they obviously are not. But in this case, its just too well organized for me to call it just a classic storm or whatever, with regeneration or backbuilding nature.

What others think about it, Andrea, Edo, etc.? I am really not confident enough to say it was not a supercell

But its a great storm and I'll check for more data at home on PC.

**Ciccio Scozzese** · 02/10/2009, 09:05

Originariamente Scritto da Aragorth

the problem is that people often call a lot worse cells/storms supercellular and they obviously are not. But in this case, its just too well organized for me to call it just a classic storm or whatever, with regeneration or backbuilding nature.

What others think about it, Andrea, Edo, etc.? I am really not confident enough to say it was not a supercell

But its a great storm and I'll check for more data at home on PC.

well to be honest I'm really confused about it:
1)first of all,we can see from the sat loop that its motion is different (E-SE) from the level guide...
2)but looking at the radar images:what it might be possible for me is that this cell in its early life tried to develop into a supercell,it was well organized (as Marko said) but the conditions were too bad to let it survive as a sup,the result is that the core has splitted when it was completely mature and that made us thinking of a cluster.
This is my personal opinion,looking forward to hear yours because this case is too interesting!

nuvolone · 04/10/2009, 21:53

ok intanto per correttezza viste anche le vostre opinioni mi sembra il caso di cambiare il titolo al mio intervento....
se qualcuno mi può spiegare come lo posso modificare dal momento che non vedo l'edit.......grazie