Originally spotted on flickr (searching "flood Voss" should still bring up interesting pictures) this report seems to indicate fairly serious situation.

floodlist.com/europe/major-flooding-west-norway

What I found interesting was that a concentrated rainfall of fairly short duration can cause such a disruption in a place that one would assume having to cope with heavy rains.

Based on a quick look, Bergen's annual rainfall average is over 2200mm, compared to about 1000 in Genoa and the cumulative rainfalls reported in the news article are less than half of what the graphs in Antonio's recent post seem to indicate.