| A | B |
| storm surge | a great rise of the sea along a shore |
| warm front | a boundary where warm air moves in over a cold air mass |
| climate | the average weather pattern of a region |
| tornado | a violent whirling storm that moves across the ground in a narrow path |
| hurricane | a large, swirling storm with a very low pressure at the center |
| cold front | when cold air moves in under a warm air mass |
| air mass | a large region of the atmosphere where the air has similar properties throughout |
| front | a boundary between air masses with different temperatures |
| thunderstorm | the most common kind of severe storm |
| lightning | huge electric sparks caused by storms |