Did anything happen, anywhere?
Yep.
If you see a message about bitter cold gripping a region and the peasants beginning to flee, I imagine your island's in trouble. My only hope is that this will hit the effected islands fairly evenly. If it just clobbers one or two realms, I'm sure it'll annoy people in grand style.
EDIT: ....and now we have snow trolls. Personally, I want a frost giant.