What is Relative Humidity?
The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.
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A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...
Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...
CONQ is a meteorological abbreviation for significant convection observed in a specific area, often indicating unstable atmospheric...
A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...
A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.
Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...
A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...
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 prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...
Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...