Science / Weather / Cold Front: The leading edge of an advancing cold air mass that is under running and displacing the warmer air in its path. Generally, with the passage of a cold front, the temperature and humidity decrease, the pressure rises, and the wind shifts (usually from the southwest to the northwest in the Northern Hemisphere). Precipitation is generally at and/or behind the front, and with a fast-moving system, a squall line may develop ahead of the front.
Cold Noun Synonyms: head or chest or common cold, influenza, ague, (la or the) grippe, coryza, gravedo, sniffles, the flu, bug, sneezles and wheezles
Cold Adjective Synonyms: chill, chilly, frosty, icy, keen, nippy, freezing, frigid, ice-cold, stone-cold, bitter, bitter-cold, raw, biting, biting-cold, numbing, gelid, wintry, hibernal, brumal, arctic, glacial, polar, hyperborean or hyperboreal, Siberian
Front Noun Synonyms: beginning, head, fore, vanguard, forefront, van
Front Verb Synonyms: face, facade, facing, fore-part, anterior, obverse
Front Adjective Synonyms: frontage, forefront
Science / Weather / Occluded Front: Also known as an occlusion, it is a complex front formed when a cold front overtakes a warm front. It develops when three thermally different air masses conflict. The type of frontal boundary they cre MORE
Science / Weather / Pre-Frontal Squall Line: A line of thunderstorms that precedes an advancing cold front. MORE