When a cold FRONT catches up to a warm FRONT it is called an occluded front.
When a cold AIR MASS displaces a warmer AIR MASS it is a cold front.
Occluded front
a warm front
A warm air mass catches up to a moving cold air mass, sliding over it.
occluded
An occluded front.
An occluded front.
The boundaries between air masses are called front. The types of air mass and movements involved determine the type of front. Warm front: a warm air mass plows into a cold air mass. Cold front: a cold air mass plows into a warm air mass. Stationary front: The warm and cold air masses move little relative to one another. Occluded front: A cold front catches up with a warm front, sending the warm air mass aloft. Dry line: a dry air mass plows into a moist air mass.
An occluded front.
front
When a cold air mass catches up to a warm air mass, it is called a cold front. At a cold front, the cold air replaces the warm air, creating a boundary between the two air masses. This can result in the formation of clouds, precipitation, and potentially severe weather.
A warm air mass catches up to a moving cold air mass, sliding over it.
occluded
An occluded front.
An occluded front.
An occluded front.
occluded
occluded
occluded
occluded