As the Earth
spins, the Coriolis effect causes a slight change in these north-south
winds that influences their direction. Each hemisphere has
its own trade wind patterns that blow from its respective pole to the
equator and back. This means that the Coriolis effect causes the winds
in the northern hemisphere to shift to the right, while the wind
currents in the southern hemisphere shift towards the left.
This happens because the earth is rotating underneath the wind
current in a very fast counterclockwise direction, leading to this
perceived shift in the current. However, the wind currents themselves
are not actually shifting; it simply looks as if they are due to the
earth rotating below them.
So, if the Earth stops spinning, then there would be no wind.