I have survived several tornado's right here in NoVa area. The best thing i could say about it is you have to do what is best, in one case i was in a vehicle and actually stopped 25 yards from it as it dropped into a parking lot and then after about 20 seconds back up again. Another time one dropped right down in front of my house in my neighbors back yard and tore up trees (throwing some on the neighbors car and on a shopping center, and on the local police sub-station). While i watched the second one hit my family was deep in my basement, and i was ready to hit the basement if it turned toward my house instead of the path it was on. In some areas you just have nowhere to go because of street layout and lack of visibility and traffic.
You mean Norfolk, Virginia ?