Hills can double the destructive power of tornadoes
Nature
When a tornado encounters a twenty-degree slope, the ground itself acts as a funnel that can double the wind's destructive force.
A gentle hill might seem like a shield, but for a tornado, it is a turbocharger. When a vortex hits a slope of about twenty degrees, the rising terrain forces the air to squeeze together and spin faster, much like water accelerating as it nears a bathtub drain. This topographical funneling can boost wind shear by thirty percent compared to flat ground. In one notable instance, a tornado intensified so rapidly upon hitting a hillside that it stripped the roofs off homes with a violent upward tug reaching two hundred meters per second.