How do winds typically move behind a front?

Winds typically move perpendicular to the front as a result of the pressure differences created by the frontal boundary. When a front passes, there is a notable shift in air masses, which leads to changes in wind direction. Behind a cold front, for instance, the wind will often shift to a more northerly direction, while behind a warm front, winds tend to shift to a more southerly direction. This movement of winds can be attributed to the atmospheric pressure gradient that develops as the colder or warmer air mass moves in, effectively pushing the air away from the front. The movement of winds in this perpendicular manner is crucial for understanding weather patterns and predicting shifts in conditions after a front has passed.