I'm making all this up.
This screamer never touched Sask. They're making it up. The clairslide or cold blob is smashing against a strong warm tropical plume from the Gulf. It is a dead man walking. The boundary is the big fight, not the cold. Anyway, if that warm stuff pushes back then Toronto gets a blizzard. blah.
** the preceeding has been a work of fiction. Names have been changed, because I want to.