Dark blue cloudy sky

What is Sublimation?

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water vapor.

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Glossary

A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...

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

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

The scientific study of climate, focusing on the analysis of long-term weather patterns and trends over time.

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...

Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.

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

Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...