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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Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.
A periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...
A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.
A body that has the property of absorbing all electromagnetic radiation falling on it, and therefore is the theoretical body...
Temperature scale, abbreviated as °C, found by accepting the freezing point of water at one atmospheric pressure as zero...
A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...
A middle cloud type within the B family in the international cloud classification. These are shaded clouds that can be white...
A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...