Weather Glossary

Atmosphere Definitions: Phenomena That Can And Do Affect Winter Weather

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Phenomenon What is It Usual Effects on Winter Weather in the United States Recent Years It Has Affected the Winter Other Remarks Arctic Oscillation (AO) A climate index of the state of the atmospheric circulation (winds) moving over and around the Arctic. When the AO is positive, a ring of strong winds circulating around the

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Glossary of Weather Terms and Definitions

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Below are some common and uncommon weather terms that are used in the Farmers’ Almanac and on our website. Absolute Zero — The temperature at which all molecular motion ceases, equal to -459.67 degrees Fahrenheit or -273.16 degrees Celsius. Anemometer — An instrument for measuring wind force and speed. Aurora, or Aurora Borealis — Also

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A Primer for Hurricanes, Tornadoes and Storm Surges

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Here is a basic primer on hurricanes, tornadoes and storm surges, along with hurricane tips, information on the different categories of hurricanes, and a glossary of terms. Hurricanes A hurricane is a severe tropical storm, that forms in the southern Atlantic Ocean, Caribbean Sea, Gulf of Mexico, or in the eastern Pacific Ocean. Hurricanes need

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Marine Warnings Glossary

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If you’re on or near large bodies of water, you should know what the following marine weather warnings mean, and what actions to take to remain safe. But first, a marine primer: What’s the difference between “miles per hour” and “knots per hour”? 1 knot = 1 nautical mile per hour = 6,076 feet per

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