Occluded Front

An Occluded Front is when a warm air mass is caught between two cold air masses. The denser cold air moves under the less dense warm air and push it upward. The two colder air masses meet in the middle and mix. This often crates rain or snow fall also.

Stationary Front

A stationary front is when a cold air and warm air mass meet but neither of them have enough force to push each other back. The two air masses meet each other in a standoff.

Warm Front

A warm front occurs when a slowly moving warm air mass collides with a slowly moving cold air mass. Since the cold is denser than the warm air, the warm air rises above the cold air. If the warm air is humid, light rain or snow falls along the front. If the warm air is dry, scattered clouds form.

Cold Front

A cold front occurs when a cold air mass runs into a slowly warm air mass. Since cold air is more dense than warm air the cold air stays close to the ground and the warm air rises above it. As the warm air rises above the cold air,the cold air stays cool and makes the temperature cold. Cold Fronts often bring cold weather such as heavy rain and snow fall.