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.
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Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...
The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...
A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...
Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.
The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...
A type of cloud consisting mostly of small particles such as ice particles.
The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...
A body that has the property of absorbing all electromagnetic radiation falling on it, and therefore is the theoretical body...
Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...
Snow that rises to 8 feet or higher.