Yeah when I saw that trough orientation and the shortwave digging around the base of it, I was thinking "It would have been nice to see another couple 12 hour panels just for kicks"
But while that exact solution is unlikely, you can see how the blockiness back in central Canada is going to aid in getting some exotic-looking evolutionns. When you have such an extreme meridional flow like that, you can have shortwave round that corner with superb efficiency. It doesn't take much room to get it to pop a big one. Typically, we'd grumble the ridge/trough axis are too far east, but not in that case.