This hasn't happened before, but who's keeping track? In the north, we totally depend on Pacific plumes for heat. There is always one hanging around. But today --- nada. We had our one 'last gasp' plume go up and split the Arctic air mass -- that was great.
This puts Toronto in 'default weather', which appears to be continuous snow. Without a Pacific plume, there won't be any Atlantic plumes for Europe. This is all while we are in the mourning period for La Nina. We'll have to see what happens.