![]() If this happens with large amounts of air and moisture, a thunderstorm can form. If this happens a small amount, a cloud will form.This circuit of rising and falling air is called a convection cell.The cooled air drops lower in the atmosphere, warms, and rises again.The warm air becomes cooler, which causes moisture, called water vapor, to form small water droplets - a process called condensation.Thunderstorms form when warm, moist air rises into cold air. Scary shelf clouds and severe hailstorm hits Texas, USAThe Nature channel is interested in news on natural disasters, weather, and strange phenomena such as.Since thunder comes from lightning, all thunderstorms have lightning. A thunderstorm is a rain shower during which you hear thunder.Shelf clouds produced by thunderstorms are always preceded by a rush of dry and cold air ahead of the cloud, with rain arriving after the shelf cloud has passed overhead.This rush of cold air often occurs in a thunderstorm’s downdraught, where cold air rushes towards the ground before spreading out to create a gust front.Shelf clouds form when cold and dense air is forced into a warmer air mass by wind.They usually appear as a broad arc across the sky that can sometimes appear to be rotating horizontally. It is known for its distinctive wedge-shaped formation.(Don Burdick) (Don Burdick) Most people flock to Rehoboth Beach, Del., in the summertime for a merry atmosphere and. It is a type of low-lying, horizontal cloud formation characterized by a clearly defined line of solid clouds. An extremely ominous shelf cloud approaches Rehoboth Beach, Del., on Aug. ![]() A “shelf cloud” or “Arcus cloud” generally forms along the leading edge of thunderstorms.
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