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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Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...
The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.
The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...
The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...
Bright and dark rays with changing colors and contrast in the sky. These rays become visible due to the reflection of atmospheric...
A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.
A thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...
Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.
A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...
A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...