On 2 Oct, 20:23, "Martin Rowley"
wrote:

... I suspect that "Sören" is the *rearward* centre of low pressure
(987) drawn on the Exeter 12Z analysis, and the new/explosive
deepening was / is taking place along the marked warm-frontal
troughing, roughly at the point of the inner warm front wave on that
same analysis. If this is the case, then the 'parent' would have had
one letter, and the new one the next in the sequence - so although it
will probably be labelled "Sören" by FUB, it might more properly be
labelled with the next name in the sequence.

This happened last winter with Windstorm Paula that affected Eastern
Europe - it was called Paula but a secondary low pressure developed
that itself wasn't given a name so as such Paula was not responsible
for the damage !

Richard