Dark blue cloudy sky

What is Frost?

The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential damage to plants and crops.

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Glossary

A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...

The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...

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

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

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

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

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

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...