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 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...
An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...
A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...
A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.
A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...
A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...
Local winds that blow from slopes to peaks as a result of the heating of the top slopes without being affected by general...
The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....
A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...