Dark blue cloudy sky

What is Weather?

Weather is the day-to-day meteorological conditions that happen in our atmosphere. Weather can change within minutes, which is why it can be difficult to forecast.

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Glossary

A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.

The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...

Perhaps you have come across them, maybe you are seeing them for the first time. These clouds, known as wave clouds, resemble...

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

A mass of very cold, dry air that mostly originates over the Arctic Ocean.