What is Warning?
A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening now, developing as we speak, and is minutes away. This weather hazard poses a threat to life and property.
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The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...
The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.
An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...
Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.
A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...
Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...
A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.
The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...