What is Acid Rain?
Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.
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Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.
The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...
In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...
A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.
Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...
The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.
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 term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...
An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...
A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...