| A | B |
|---|
| air mass | a large region of air that has a similar tempereature and humidity. |
| front | a metting place between different air masses. |
| thunderstorm | a rainstorm that includes lightning and thunder. |
| tornado | a rotating funnel shaped cloud that contains winds that blow up to 299 mph (480 km/hour) |
| low pressure closure | when low air pressure is surrounded by high air pressure. |
| hurricane | A tropical storm that turns into a wind speed more than 73 mph (117 km/hr). |
| storm surge | this is a bulge of water created by a hurricane that creates huge waves in the ocean. |
| cyclone | a storm with a low pressure closure and a circular pattern of winds. |
| monsoon | a seasonal wind that brings heavy rain is this. |
| Lightning | Spark caused when electricity in a thunderhead discharges |
| Thunder | Sound of rapidly expanding air |
| Tornado Alley | Located where cold, dry air from Canada meets warm, moist air from Mexico. |
| Coriolis Effect | In the Northern Hemisphere, counterclockwise movement caused by Earth's rotation. |
| Fog | A cloud forms near the ground. |
