What is Arctic High?

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

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

Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.

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

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

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

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

The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...

A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...