What is Humidity?

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

Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...

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

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

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...

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

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

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