What is Barometer?

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

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

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

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

A weather watch means there is a risk of weather hazards in the near future, which could pose a threat to life/property....

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

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

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...