| A | B |
|---|
| anemometer | an instrument for measuring the speed of the wind |
| atmospheric pressure | the force exerted on a surface by the mass of the air above it |
| barometer | an instrument measuring atmospheric pressure, used especially in forecasting the weather |
| blizzards | a storm with large amounts of snow or blowing snow, winds greater than 35 mph, and little visibility |
| cirrus clouds | feathery clouds. They are associated with fair weather. Cirrus clouds often indicate that rain or snow will fall within several hours. |
| climate | Climate is the weather of a place averaged over an extended period of time (years). |
| cumulonimbus clouds | Clouds that produce thunderstorms, are flat and dark on the bottom, and form from cumulus clouds. |
| cumulus clouds | Cumulus clouds are fluffy and white with flat bottoms. They usually indicate fair weather. |
| drought | a less-than-normal amount of rain or snow over a period of time |
| flood | an overflowing of a large amount of water beyond its normal confines, especially over what is normally dry land. |
| fog | water droplets that condense from the air close to the ground |
| forecast | a prediction or estimate of future events, especially coming weather |
| hail | a form of precipitation consisting of solid ice that forms inside thunderstorms updrafts. |
| humidity | water vapor in the air |
| hurricanes | a severe tropical storm that produces high winds |
| ice | when liquid water or water vapor becomes cold enough, it changes into solid water. |
| ice storms | a storm of freezing rain that leaves a coating of ice. |
| meteorologists | a scientist who studies the weather |
| precipitation | rain, snow, sleet, or hail that falls to the ground |
| rain | liquid water that is condensed from water vapor in the atmosphere and falls to Earth in drops |
| rain gauge | a device for collecting and measuring the amount of rain which falls. |
| snow | precipitation in the form of ice crystals grouped together as snowflakes |
| sleet | type of precipitation distinct from snow, hail and freezing rain; when snow melts and then refreezes. |
| stratus clouds | smooth, gray clouds that cover the whole sky (block out direct sunlight). Light rain and drizzle are usually associated with stratus clouds. |
| temperature | a measure of how hot the air is |
| thermal energy | heat energy caused from the movement of molecules |
| thermometer | an instrument for measuring and indicating temperature |
| thunderstorms | a storm with thunder and lightning and typically also heavy rain or hail. |
| tornadoes | a rapidly rotating column of air that extends from a thunderstorm to the ground. Wind speeds can reach 400 kilometers (km) per hour or more in a tornado. |
| typhoons | a tropical storm in the region of the Indian or western Pacific oceans. |
| weather | is the day-to-day state of the atmosphere for a given area |
| weather vane | an instrument used for showing the direction of the wind. |
| wind | air in motion |
