| A | B |
|---|
| Prediction about future weather | forecast |
| low presure air mass | warm, moist air |
| high pressure air mass | air circulates in a clockwise direction |
| Beaufort scale | a way of estimating the effects of the wind |
| isobars | lines that connect places having equal air pressure |
| series of weather maps | used to track a weather system |
| most difficult weather conditions to forecast | small-scale storms |
| important FACTORS that influence climate | latitude and altitude |
| CONDITIONS that determine climate | precipitation and temperature |
| climate zones | temperate, tropical, polar |
| a climate region of North America | humid continental |
| an attempt to make it rain | cloud seeding |
