Hubby being a ham, keeps track of all this kind of stuff. Said if the weather was right they should of seen this in Scotland was so big..So I would think Canada were it a clear night would of been able to see it for sure.
Central Scotland. I've seen a fair number of auroras over the years, but never had the chance to take a photo; and I haven't seen one for three winters now.
Most of what I've seen have just been shifting rays, but I've seen three really good ones; I saw a curtain aurora back in the mid 60s; at some point in the 70s I saw one that was like a load of ostrich feathers slotted together, that filled the sky to the zenith; in the late 80s or early 90s I saw one that had its origins pretty well overhead and rayed off to the south from being curved around a central spot.
I'm not surprised that in some places the lights are called the Merry Dancers.
I am surprised you didn't see this the other night.. Hubby has another web link he uses and it showed the area where it would of been seen and it came all the way down into Northen England. I'm at the moment in Maine USA hoping if there is another flare we will be north enough to get to see it..