When the horn blows, it means (to me) turn on the TV and see where the tornado is. Usually it is sighted somewhere in the St. Louis vicinity. When it blows continually, that means go to a safe area in your home. If you are in your car, you should find a ditch somewhere closest to the tornado area. A room without windows is safest and I find that texting family members in another city telling them where you are is best as the house may come down on you. I have lived in tornado areas all my life and can tell by the way the sky looks that there is a tornado coming. I moved to Idaho once and on my way home from work, I could tell there was a tornado nearby. That evening, my boss called and I told him about it. He said they didn't have tornados, but on the news that night, I was right as there was a small tornado about 15 miles away. The sky gets a funny color and everything gets very still and then the wind starts. The tornado is not on your doorstep when it blows, you have plenty of time **normally** before it hits. Sometimes it hits fast like in Kansas and western MO.