What is Sublimation?
The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water vapor.
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The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...
Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...
In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...
A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...
The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...
Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...
Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.
A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...
A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...
Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....