Body Mass Index (BMI). BMI stands for Body Mass Index. It is a measure of body composition. BMI is calculated by taking a person's weight and dividing by their height squared. For instance, if your height is 1.82 meters, the divisor of the calculation will be (1.82 * 1.82) = 3.3124.
Dissipating Stage: When the downdrafts encompass the storm, the updrafts are shut off and the storm begins to die. The intensity of the rain decreases. Prior to the development of a thunderstorm, the air near the surface is often warm and moist. With the downdrafts come cool air and the temperature at the surface drops.
When lightning strikes, it heats up the air a lot and causes it to expand with an explosive sound (thunder). EDIT: Ground shaking is an earthquake. Thunder accompanies thunderstorms, which have lightning. Thunderstorms are created by a cooler air mass colliding with a warm air mass, forcing the warm air mass up rapidly, decreasing pressure, temperature, and water saturation capacity, and creating lots of rain.