Funnel Cloud

Science / Weather / Funnel Cloud: A violent, rotating column of air visibly extending from the base of a towering cumulus or cumulonimbus toward the ground, but not in contact with it. It is reported as 'FC' in an observation and on the METAR.
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Cold Air Funnel

Science / Weather / Cold Air Funnel: Funnel clouds, usually short-lived, that develop from relatively small showers or thunderstorms when the air aloft is very in cold. Cold air funnels may touch down briefly, but in general are less vio MORE

Middle Clouds

Science / Weather / Middle Clouds: A term used to signify clouds with bases between 6,000 and 18,000 feet. At the higher altitudes, they may also have some ice crystals, but they are composed mainly of water droplets. Altocumulus, alto MORE

Low Clouds

Science / Weather / Low Clouds: A term used to signify clouds with bases below 6,000 feet and are of a stratiform or a cumuliform variety. Stratiform clouds include stratus and stratocumulus. Cumuliform clouds include cumulus and cu MORE

Lenticular Cloud

Science / Weather / Lenticular Cloud: A cloud species which has elements resembling smooth lenses or almonds and more or less isolated. These clouds are caused by a wave wind pattern created by the mountains. They are also indicative of d MORE

Keyword Funnel

Business / Search Engine Optimization (SEO) / Keyword Funnel: The relationship between various related keywords that searchers search for. Some searches are particularly well aligned with others due to spelling errors, poor search relevancy, and automated or man MORE

Noctilucent Clouds

Science / Weather / Noctilucent Clouds: Rarely seen clouds of tiny ice particles that form approximately 75 to 90 kilometers above the earth's surface. They have been seen only during twilight (dusk and dawn) during the summer months in the MORE