BBCNEWS BBC News December 11, 2021 11:11:00
Tornadoes, travelling up to 60 mph for hundreds of miles, hitting numerous cities and some major cities, you are going to have bad things happen and that is what is happening. what spawned them? first of all, we had record warmth and heat across the southern plains in oklahoma and texas and in the mississippi and arkansas and alabama and tennessee and missouri. the temperatures were in the low to mid 80s. they are normally around 30—40. this is an unprecedented air mass for december. to have this much moisture and heat, there is a powerfuljet moisture and heat, there is a powerful jet stream...
Source: archive.org