| A | B |
|---|
| cold front | can bring severe weather |
| warm front | a warm air mass moves slowly over a cold air mass |
| air mass | a large body of air that has about the same conditions throughout |
| continental air mass | dry air conditions |
| maritime polar air mass | moist cold air mass |
| weather | changes when moving air masses contact different conditions |
| Coriolis Effect | spinning of the Earth which causes air masses to move in a diagonal path |
| winds | causes air masses to move |
| front | the boundary between two different air masses |
| occluded front | a warm air mass is trapped between two cold air masses |
| stationary front | rain can last for several days |
| cyclone | air flowing from an area of high pressure into an area of low pressure |
| anticyclone | a cyclone that produces dry, fair weather |
| counterclockwise | the direction cyclones rotate in the Northern Hemisphere |
