What is Cirriform?

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...

A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...

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

Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...

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

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...

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

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

A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

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