Dark blue cloudy sky

What is Ceiling?

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

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Glossary

The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

Snow that rises to 8 feet or higher.

Local winds that blow from slopes to peaks as a result of the heating of the top slopes without being affected by general...

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...

Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...

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

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

A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...