| A | B |
|---|
| evaporation | water vapor enters the atmosphere |
| 10 cntimeters snow = | 1 centimeter rain |
| direction of wind | difference between cyclones and anticyclones |
| balloons and satellites | have improved collection of weather data |
| psychrometer | measures relative humidity |
| warm front | warm air mass overtakes a cold air mass |
| Continental polar air mass | cold, dry air affecting northern US in winter |
| high winds | often most dangerous aspect of snowstorm |
| anticyclone weather | dry and clear |
| needed for cloud formation | particles in air and cooling of air |
| Prevailing Westerlies | moves weather across the United States |
| wind speed | small lines at the end osf shaft that represent wind direction |
| cumulonibous clouds | large clouds that produce thunderstorms |
| continental tropical air mass | hot and dry |
| cirrus clouds | high feathery clouds |
| Doldrums | area of little or no wind |
| precipitation | any type of water that falls from the clouds |
| tornado | funnel shaped cloud that touches Earth's surface |
| isobars | lines on a map joining places with same air pressure |
