| A | B |
| air mass | large body of air that has properties similar to the part of Earth's surface over which it develops |
| front | boundary between two air masses of different density, moisture, or temperature |
| tornado | violent, whirling wind that moves in a narrow path over land |
| hurricane | the most powerful storm; large, swirling, low-pressure system that fomrs over the warm Atlantic ocean |
| blizzard | winter storm lasting over 3 hours where winds are over 56 km/h, has low temperatures, and visibility less than 400m |
| meteorologist | person who studies weather |
| station model | shows weather conditions at a specific position on Earth's surface |
| isotherm | lines on a map that connect points of equal temperature |
| isobar | lines on a map that connect areas of equal barometric pressure |
| climatologist | scientist who studies climate |