Although it may be 'apparent' (it is a harmonic of sorts), the
apparentness no means invalidates its importance to weather
mechanics. Because the Coriolis effect exists, it causes a
weather patterns to spiral and vorteces to build. Without the
Coriolis effect, cyclonic systems could not grow and develop.
This is why we do not have hurricanes at the equator. The
spiral, interestingly, allows force interactions to build and
feed. Without the coriolis effect we would not have
hurricanes...and we would not have the Great Red Spot on
Jupiter.