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...
A very cold high pressure that originates over the Arctic Ocean.
The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...
Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...
A periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...
Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...
A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...
Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...
Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...
The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...