While once thought to be correct, opening the windows has no benefit because it is just sheer wind power which destroys a building. High-rise buildings have no impact on storms this large. The southwest corner of the basement is the safest place to be. The safest place to be is in the center of the basement under a strong table or other heavy furniture. Debris has been found to collect in the corners of basements.
Radar can pinpoint the exact location of a tornado.
While Doppler radar has increased the accuracy of predictions, the weather service is still only able to predict the general areas that may get tornadoes or severe storms. A car can outrun a tornado. A tornado's speed and direction change suddenly and quickly. You should seek shelter in a building or in a low area of the ground. We think of the holidays as happy times, a chance to celebrate with family and friends.