Dark blue cloudy sky

What is Confluence?

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often describes regions of converging airflows that can lead to cloud formation and precipitation.

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Glossary

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

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

A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...

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

The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

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

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

The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.

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