Dark blue cloudy sky

What is Black Ice?

Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt due to its transparency, thus posing a danger to drivers.

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Glossary

Bright and dark rays with changing colors and contrast in the sky. These rays become visible due to the reflection of atmospheric...

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

A drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.

A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...

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

A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...

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

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

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