why do almost all storm cells (at least in the US) move west to east?

Question

It may be NW-SE, SW-NE, or just W-E, but it’s almost always this way. Why not E-W?

In: 10

Answer 1

The reason that they most often move from west to east is due to the jet stream. The jet stream is a narrow band of fast, flowing air currents located near the altitude of the tropopause that flow from west to east.