What is Cirriform?

The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.

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

The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...

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

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...

A periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...

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

The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.

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

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