We move on, driving through southern Minnesota on our way to Cedar Rapids, Iowa. But a sudden sudden storm drenches us, reducing visibility and velocity to near-nil. We cautiously bull our way through, and eventually realize we should tune in to local radio...and we catch an emergency bulletin in progress: "...homes immediately. Take shelter. Flying debris and structure collapse can cause death. Take shelter immediately. If you are on the highway, find the closest shelter. This is an emergency broadcast. Tornadoes wrapped in thunderstorms are proceeding through..." There is a list of counties. Are we in one of them? Did we just drive through the outskirts of a tornado?
The weather starts to clear by the time we reach Iowa; we avoid disaster through sheer dumb luck.