What is Heat Index?
A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the 'apparent temperature.'
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Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.
The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...
A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...
The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...
The branch of science dealing with the laws of motion of air or other gases.
A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...
A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...
A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.
A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...
Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...