There are four main types of fronts:

* Cold Front: A cold air mass pushes into a warmer air mass, forcing the warm air upwards. This often leads to thunderstorms, heavy rain, and strong winds.

* Warm Front: A warm air mass slides over a cooler air mass. This results in more gradual and widespread precipitation, often in the form of drizzle or snow.

* Stationary Front: When two air masses meet but neither is strong enough to displace the other, they create a stationary front. This can lead to periods of prolonged rain or snow.

* Occluded Front: When a cold front overtakes a warm front, it forces the warm air upwards and creates an occluded front. This can bring heavy rain, snow, and strong winds.

The specific weather conditions associated with a front depend on the temperature differences between the air masses and the speed at which they are moving.