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

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

A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...

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

An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....

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

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

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...