Are tornadoes a common occurrence in December? We don't get them where I'm from and I can't remember hearing about anything like this before.
My heart goes out to the families of those involved. This would be devastating at the best of times.
My heart goes out to the families of those involved. This would be devastating at the best of times.
I would not go so far as to say 'Very rare.' Even before we started seeing more major impact to our climate due to global warming, winter tornado outbreaks were roughly ~10% of all tornado outbreaks. https://www.spc.noaa.gov/publications/galway/winter.pdf
Spring and fall are definitely the most active seasons for tornados but they occur often enough year round that I think that, at least for the US, you can't say tornados are rarer than 'uncommon' for any time of year.