Let’s give a warm Jersey welcome to the visiting polar vortices. That, of course, smacks of insincerity since there’s nothing warm about these frigid spin-off swirls as they uninvitingly drop down from core regions of the Arctic Circle.

As background, the arctic is always topped by a massive low pressure system, known as the polar vortex. It is generally very stable, hanging happily in place. However, it can become befuddled, torn a bit apart.