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The "Great Appalachian Storm", a large extratropical cyclone, struck the east coast of the United States before moving northeast.
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Great Appalachian Storm of 1950
Extratropical cyclone that struck the Eastern United States in 1950
The Great Appalachian Storm of November 1950 was a large extratropical cyclone which moved through the Eastern United States, causing blizzard conditions along the western slopes of the Appalachian Mountains and significant winds and heavy rainfall east of the mountains.…Source: Wikipedia (CC BY-SA)
Extratropical cyclone
Type of cyclone
Extratropical cyclones, sometimes called mid-latitude cyclones or wave cyclones, are low-pressure areas which, along with the anticyclones of high-pressure areas, drive the weather over much of the Earth. Extratropical cyclones are capable of producing anything from cloudiness…Source: Wikipedia (CC BY-SA)