Overpass=carburetor=wind speed multiplied.

Don't let the good fortune of a very few guide your decision.
I doubt we would go into the mountains in the winter and hope to survive because that family, the Kims IIRC, did.

PREPARE with acquisition of sound knowledge and skills. Here in OK every time a tornado watch is issued they never say "go hang out in an underpass". They say get low and stay low.