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weather 4
| Term | Definition |
|---|---|
| air mass | Volume of air defined by its temperature & water vapor content. |
| stationary front | Boundary between 2 air masses that doesn't move, but can wobble back & forth for several hundred miles a day |
| occluded front | Combination of 2 fronts that form when a cold front catches up & overtakes a warm front. |
| warm front | Boundary between a cool air mass & a warm air mass moving so the warmer air replaces the cooler air. |
| cold front | Boundary between a cool air mass & a warm air mass moving sot the cooler air replaces the warmer air. |