| A | B |
|---|
| storm | a violent disturbance in the atmosphere involving sudden changes in air pressure, which cause rapid air movements |
| cumulonimbus clouds | where thunderstorms form when warm air is forced upward at a cold front |
| thunderstorms | heavy rainstorms accompanied by thunder and lightning |
| lightning | a sudden spark, or energy discharge, as electrical charges jump between parts of a cloud or between the cloud and the ground |
| thunder | the sound of the explosion when air rapidly heated by lightning expands suddenly |
| tornado | a rapidly whirling, funnel-shaped cloud that reaches down from a storm cloud to touch Earth's surface |
| hurricane | tropical storm that has winds of 119 kilometers per hour or higher that begins over warm water |
| eye | center of hurricane where winds grow calm and the sky may clear |
| storm surge | "dome" of water that sweeps across the coast where the hurricane lands |
| evacuate | move away temporarily, as is necessary when a hurricane is approaching |
| lake-effect snow | cold, dry air mass moves across lake and picks up water vapor, then rises and cools over land and dumps snow |
