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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 sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...

A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...

A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...

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

The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...

Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...

A very cold high pressure that originates over the Arctic Ocean.

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

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

A thick cloud of tiny water droplets suspended in the atmosphere near the Earth's surface, significantly reducing visibility.