| A | B |
|---|
| AIR MASS | A huge body of air that has similar temperature, pressure, and humidity throughout. |
| TROPICAL | A warm air mass that forms in the tropics and has low air pressure. |
| POLAR | A cold air mass that forms in the polar regions of Earth and has high air pressure. |
| MARITIME | A humid air mass that forms over oceans. |
| CONTINENTAL | A dry air mass that forms over land. |
| FRONT | The area where air masses meet and do not mix. |
| COLD FRONT | A cold air mass runs into a warm air mass creating storms |
| LOW PRESSURE | A center of warm, less dense air that rises |
| HIGH PRESSURE | A center of cool, more dense air that sinks |
| STORM | A violent disturbance in the atmosphere. |
| TORNADO | A rapidly whirling, funnel-shaped cloud that reaches down from a storm cloud to touch Earth's surface, usually leaving a destructive path. |
| HURRICANE | A tropical storm that has winds of 119 kilometers per hour or higher |
| EVACUATE | To move away temporarily. |
| METEOROLOGIST | Scientists who study the causes of weather and try to predict it. |
| EL NINO | An abnormal climate event that occurs every 2 to 7 years in the Pacific Ocean, causing changes in winds, currents, and weather patterns that can lead to dramatic climate changes. |
