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

A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....

Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.

Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...

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

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...

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

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...

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

A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...