The Swiss government issues weather alerts to inform the public about potential hazards. On October 27th, a 'level 3' alert was issued for heavy snowfall and strong winds in some areas.
MeteoSchweiz notes that "widespread ice formation on roads over a sustained period is a rare occurrence in Switzerland."
In general, hazard levels indicate the potential for objects to become unsecured, and smaller tree branches may break off.
Author's summary: Switzerland's weather alerts inform the public about potential hazards.