🌪️ How a Tornado Forms: Supercell Wind Shear, Vortex Tilting and Angular-Momentum Spin-Up Lab

Interactive 3D supercell storm showing how wind shear creates horizontal vorticity, how the updraft tilts it upright into a mesocyclone, and how contraction (angular momentum v*r conserved) spins up a Rankine-vortex tornado. Set CAPE, shear and cloud base, then read peak wind, pressure drop, funnel visibility and the Enhanced Fujita rating; live numerical checks included. Highly simplified teaching model, not a forecast.