What is Cirrocumulus?
A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.
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A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...
Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.
Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...
A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.
Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...
A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...
A cold core low is a low-pressure system where the coldest temperatures are found near the center. These systems are often...
An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...
The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.