Mmmhh... I thought Coriolis was applied to moving systems, not fixed ones..as far as I remembered.
But what BOAC presented, although entirely correct, seems to be "just" gyroscopic precession, not Coriolis effect, which in itself does not exist for a fixed object, but applies to a moving system, like the curve induced on a bullet trajectory (thought minimal) or a weather system.
Please correct as needed,
Flex