Weater Fronts

Cold Fronts

A cold front happens when a moving cold air mass comes and moves the warm air mass when the cold front hits it. The cold air's mass is denser than the warm air's, so the warm air moves to make way for the cold air. The warm air rises and the cold air stays close to the ground. While the warm air rises, it cools, and then the cool air would fall, starting the whole process again. Because cold fronts move fast they can cause abrupt weather changes,

Warm Front

A warm front happens when a moving warm air mass comes and colides with the warm air. The warm air pushes the cold air, but as that happens, it pushes the cold air. The warm air rises over the cold air because the warm air has less mass. Usually with warm fronts, storms follow, either scattered clouds or showers and light rain.

Stationary Fronts

When warm and cold air masses collide, neither has enough force so they just collide. In the middle of the fronts, water vapor creates storms. It can last for many days.

Occluded Fronts

A cool air front comes and collides with a cold air front. When that happens, the warm air in the middle is blasted upward. The cooler air may mix. The Earth cools off and in middle, weather occurs, causing storms and possibly tornadoes.