1. Weather (Part 2)

2. Fronts
When two air masses meet they form a boundary called a front.

3. Warm Front
When warm air moves into an area previously covered by cold air.

4. Cold Front
When cold dense air moves into an area previously occupied by warmer air.

5. Stationary Front
When the surface position of the front does not move we call it a stationary front.

6. Occluded Front
When an active cold front takes
over a warm front.

7. Middle- Latitude Cyclones
Large centers of lower pressure that generally travel from west to east causing stormy weather.