wst[25] - windstorm naming

Storm Naming "groups" in western Europe.
Note that a number of storms each season can be named by more than one group.

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from wikipedia :-
Weather system naming in Europe is the responsibility of the national meteorological services belonging to the geographical area in which a weather system originates. {note that the criteria used does vary - in the UK the trigger tends to be amber warning or multiple yellow warnings} These services collaborate to give the system a name, which is then used throughout Europe. This framework was set up beginning in 2013 by EUMETNET, a network of 33 European national meteorological services.

On the North Atlantic coast, the United Kingdom's Met Office, Ireland's Met Éireann and the Royal Netherlands Meteorological Institute (KNMI) collaborate on names. Other groups include the southwestern countries of Belgium, Luxembourg, France, Spain and Portugal, and the northern group of Denmark, Sweden and Norway. Several countries in central and eastern Europe use a naming scheme from the Free University of Berlin. Tropical storms crossing the Atlantic keep the name assigned by the United States National Hurricane Centre.