Severe weather alert Ireland and UK – Is their analysis reasonable?

I was just reading this weather article and wondering if the analysis was reasonable. The author states that:

“This will be a major winter weather onslaught and not just a drop in temperatures with a few local flurries.

This is like turning the eastern Atlantic into the Great Lakes, almost, when you have this much cold air rushing south this fast, it overcomes the normal tendencies of the Atlantic to modify air masses and turn streamers to mush. This setup could give blizzard like conditions even with winds somewhat west of due north, in many parts of Ireland. And we aren’t that confident that the setup is perfectly modelled yet, what’s probably equally likely at this point is that the polar low will drop into the North Sea and pull Siberian air across into the N-NE flow on following days. There is also a lot of super-cold air waiting to head west from central to northwest Russia and around Novaya Zemlya.

Severe weather alert Ireland and UK – Is their analysis reasonable?