What is La Niña?
A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global weather patterns such as reduced rainfall in some areas and increased rainfall in others.
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A mass of very cold, dry air that mostly originates over the Arctic Ocean.
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.
The scientific study of climate, focusing on the analysis of long-term weather patterns and trends over time.
A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.
A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...
A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...
A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...
The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.
The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...