I went through an "almost" tornado when living in Atlanta, and the sight of rain going UP scared me more than the '89 Loma Prieta quake, in which I was on the local SF train system. (don't get me wrong, quakes are scary, but after living in the bay for 40 years, I am kind of used to them, anything less than a 5.0 is just an attention getter, and a reason to re-organize your shelves)