What is Arctic Air?
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
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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...
A weather watch means there is a risk of weather hazards in the near future, which could pose a threat to life/property....
The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...
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 closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...
Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.
A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...
Snow that rises to 8 feet or higher.
Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.
A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...