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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A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...
A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...
A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.
A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.
An elongated area of relatively low atmospheric pressure, often associated with unsettled weather conditions like storms...
The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...
A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...
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 bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...