Typical February weather

I'm sitting here watching the Olympics (which I am watching much less of than usual) and the warning sirens went off. The only time that happens is when we have a tornado warning or an air raid. Since it's mid-February, naturally I assumed we must have done something to annoy Canada, or perhaps Michigan, and were under attack. It turns out that was incorrect, but that we actually had a tornado warning. I've lived around here most of my 42 years and I don't ever remember a tornado in February. I guess that's more fodder for you global warming types.