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
An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...
A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...
The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...
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 formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...
A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.
The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.
Snow that rises to 8 feet or higher.
A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...
A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...