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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The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....
In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...
The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.
A very cold high pressure that originates over the Arctic Ocean.
Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...
Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.
A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...
A body that has the property of absorbing all electromagnetic radiation falling on it, and therefore is the theoretical body...
The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...
The belt between 50-70 ° N and S latitudes in the Northern and Southern Hemispheres, adjacent to the Polar Region. Although...