These clouds are puffy and look like cotton balls. They MAY bring rain or snow.
What is a cumulus cloud?
100
This instrument is used to measure the amount of rain that falls.
What is a rain guage?
100
It is indicated by a red line on a weather map along with half circles.
What is the symbol for a warm front?
100
This occurs when the atmosphere traps heat.
What is the greenhouse effect?
100
A swirling vortex of spinning air: usually a product of thunderstorms.
What is a tornado?
200
These clouds are flat, gray clouds that usually bring storms and rain. Their name means layer.
What is a stratus cloud?
200
An instrument that measures humidity or moisture in the air.
What is a hygrometer?
200
A zone between two air masses that stays in one area over a period of time, and is indicated on the map by a line with both blue triangles and red half circles.
What is a stationary front?
200
The constant circulation of water between atmosphere, land, and sea through evaporation, condensation, precipitation, and percolation through soils and rocks.
What is the water cycle?
200
A tropical cyclone that usually involves heavy rains and travels across the ocean.
What is a hurricane?
300
Dark, towering clouds that bring heavy rain, lightning and thunder.
What is a cumulonimbus cloud?
300
This weather instrument measures air pressure (or the weight of air).
What is a barometer?
300
A capital H is the symbol that indicates clear, calm conditions with reduced chance of precipitation on a weather map.
What is the symbol for high pressure?
300
The process of water changing from liquid to a gas.
What is evaporation?
300
A snowstorm with high winds.
What is a blizzard?
400
These thin,wispy clouds are usually associated with fair weather. They are found high in the sky and may mean a change of weather is approaching.
What is a cirrus cloud?
400
An instrument that is used to measure the direction that the wind is blowing.
What is a wind or weather vane?
400
These symbols indicate wind on a weather map.
What are isobars?
400
The process of snow and ice changing into water vapor in the air without first melting into water.
What is sublimation?
400
The name used for a hurricane around Australia.
What is a willie willie?
500
These clouds form in mountainous regions and are sometimes thougt to be UFO's because of their "flying saucer" shape.
What is a lenticular cloud?
500
An instrument used to measure the speed of wind.
What is an anemometer?
500
A prediction of temperature and weather conditions using meteorological data and symbols.
What is a forecast?
500
What is the amount of water in the air compared to the amount of moisture that the specific temperature can hold.
What is relative humidity?
500
This occurs when clouds are charged with electricity?