What is Clear?
Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility. Clear sky. In meteorology, this term is also used when the cloud cover is less than 1/8 during the day or at the observation hour.
Schedule a Demo Today
A new era is starting with fundamentally new forecasting with unprecedented precision!
Contact UsGlossary
The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.
The expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....
The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.
A middle cloud type within the B family in the international cloud classification. These are shaded clouds that can be white...
The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...
An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...
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...
Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...
Indicates the amount of water the soil can absorb/retain through percolation. This capacity is around 7% in sandy soil and...