Many parts of the country have dealt with tornadoes over the last few days. The warmer weather and severe storms often make for a troubling combination this time of year. I remember going through tornado drills when I was still in grade school. While Nashville has experienced numerous tornadoes over the last few years, the straight-line winds often catch people by surprise. We discussed the weather around the office yesterday, and I knew people were preparing. But it wasn’t tornadoes causing concern; it was straight-line winds…