Clouds
Weather Facts
Extreme Weather
Weather Tools
Weather Patterns
100

A cloud that is wispy and feathery.

What is a cirrus cloud?

100

Humidity is the amount of this in the air.

What is water vapor?

100

A sudden, rapid flow of snow, sliding down a mountain slope.

What is an avalanche?

100

To measure the temperature of the air, use me.

What is a thermometer?

100

The general direction weather patterns move in the United States.

What is west to east?

200

Name 3 types of clouds.

What are cumulus, stratus and cirrus?

200

It begins when clouds become saturated.

What is rain?

200

A rise in seawater level driven primarily by intense winds pushing massive volumes of ocean water toward the shoreline, making it one of the deadliest threats during hurricanes and tropical cyclones.

What is a storm surge?

200

Feeling like the air is weighing down on you, to measure the air pressure use me.

What is a barometer?

200

It forms a boundary between a cold air mass and a warm air mass.

What is a jet stream?

300

Clouds associated with thunderstorms.

What are cumulonimbus clouds?

300

Water that falls from the sky.

What is precipitation?

300

The Saffir-Simpson Scale measures the intensity of this type of extreme weather event, and is partly named for meteorologist Robert Simpson.


What is a hurricane?

300

Use this when you want to know your altitude, or elevation above sea level.

What is an altimeter?

300

Prevailing winds from the west toward the east in the middle latitudes between 30 and 60 degrees latitude.

What are the prevailing westerlies?

400

Clouds frequently are composed of these two things.

What is water and dust particles?

400

Someone who is trained to predict the weather.

What is a meteorologist?

400

A localized column of sinking air within a thunderstorm can produce these dangerous, brief downdrafts that cause extreme wind shear and damage resembling a tornado.

What is a microburst?

400

I measure the speed of wind.

What is an anemometer?

400

A meteorological phenomenon where a mountain range acts as a physical barrier to weather systems, making it much drier on the leeward side.

What is the rainshadow effect?

500

A cloud that looks like a flat, featureless blanket covering the sky.

What is a stratus cloud?

500

When clouds start raining because they are getting pushed over mountains

What is orographic lifting?

500

A white, opaque ice that forms when supercooled water droplets in fog, or clouds, freezing instantly upon contact with any surface.

What is rime ice?

500

Use this tool to measure the amount of water vapor, or humidity, in the air.

What is a hygrometer?

500

A cyclical weather pattern, causing heavy rainfall in South America and pushing a wave-like jet stream that brings unusually wet and stormy winters to the southern United States.

What is El NiƱo?

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