Climate change is pushing hurricanes to their extremes. In 2018, Hurricane Michael (shown here in this digitally enhanced image) became the first Category 5 hurricane to make landfall on the Florida Panhandle. (Image credit: Roberto Machado Noa/Getty Images)
The butterfly effect, an underlying principle of chaos, describes how a small change in one state of a deterministic nonlinear system can result in large differences in a later state (meaning that there is sensitive dependence on initial conditions). A metaphor for this behavior is that a butterfly flapping its wings in Brazil can cause a tornado in Texas.
Chaos is baked into reality due to the fact everything's connected. It's all about initial conditions, entanglement and feedback loops, crucial characteristics of all things related to weather.