Bengt Engel writes: "nice weather in scandi that time of year, cold and calm....could be foggy in both OSL and AAR, but you should not have to worry about turbulence..."
Well, no worries unless we get a storm like the one January 8. 2005.
Closed airports, many diversions, - uprooted trees, - damaged buildings, and possibly a bit of turbulence.
Have fun
B