Something else to notice in the figure. Storm systems
in the tropics (0 to 30 degrees latitude) generally move from
east to west in both hemispheres, in both hemispheres.
At middle latitudes (30 to 60 degrees), storms move in the
other direction, from west to east. That's not something
we will cover in class, this is a big part of what is covered
in the latest 1S1P assignment.