While the US East coast is preparing for an intensifying Sandy (Jeff Masters has all the info you could possibly want), Europe is being struck by a very early cold snap. According to German meteorologist Christoph Hartmann such early snows in Germany occur every 30 to 40 years (link).*
Bulgarian news ageny Novinite has some short info about the rest of Europe:
The early first snow for the new winter has already fallen in Central Europe, tragically claiming three lives in Poland.
The three victims of deadly frostbite are men aged 50-60, one of them being a homeless person.
The heavy snowfall in southern Poland has obstructed communications, and some 70,000 people have remained without power.
The situation in neighboring Czech Republic is similar, with trains delayed, roads blocked by wet snow, and trees felled.
Northern Italy and Switzerland have also been affected by the phenomenon, caused by the so-called Cassandra cyclone.
Snow has also fallen in the northern areas of southerly Croatia on the Balkan Peninsula, with the snow cover expected to reach some 20 cm by Sunday evening.
The two images above show snow cover, the two images below show the anomaly. The snow in Central Europe is caused by a combination of frigid air from the Arctic and Cassandra, the cyclone in the Mediterranean pushing mild and moist air northwards. This seems to be confirmed by the National Weather Service of Switzerland, as explained in this swissinfo.ch article: