how long should a tornado drill last
2012 Tornado and Severe Weather Awareness Drill Scheduled for Thursday April 19, 2012 There are two new and important changes to the 2012 Tornado Drill.his is an historic first in Wisconsin. The tornado warning at 1:45pm will last about one minute on radio and TV stations across Wisconsin. (The drill will also occur at the same time in Minnesota and will be broadcast on radio and TV stations in that state as well).