| A | B |
|---|
| Air mass | Large body of air that has similar temperature, hunidity and pressure |
| Tropical | Warm air mass forming in the tropics which has low pressure |
| Polar | Cold air mass forming north or south 50 degrees which have a high pressure |
| Maritime | Air mass over oceans |
| Continental | Air mass over land |
| Front | The area where the air masses meet and do not mix |
| Occluded | Warm air mass is cut off from the ground |
| Cyclone | A swirling center of low pressure |
| Anticyclone | High pressure areas of dry air |
| Storm | Violent disturbance in the atmosphere |
| Thunderstorm | Heavy rain storms accompanied by thunder and lightning |
| Lightning | A sudden spark or energy discharged as the charges jump from cloud to cloud or cloud to ground |
| Tornado | A rapidly whirling, funnel-shaped cloud that reaches down to the earth |
| Hurricane | A tropical storm that has winds of 119 km/hr |
| Storm surge | Dome of water that sweeps across the coast |
| Evacuate | Moving away temporary |
| Flash flood | A sudden violent flood that occurs within a few hours |
| Meteorologist | Scientist who study the cause of weather and try to predict it |
| El nino | Periodically a warm water event that occurs in the tropic pacific ocean |
| Isobar | Lines joining places on a map that have the same air pressure |
| Isotherm | Lines joining places on a map that have the same temperature |
