This type of cloud is most often observed in the leading edge of a severe thunderstorm. When this happens the result is the shelf cloud. Often moist air is hoisted at the leading edge of the storm (the gust front) of the rain-cooled air. Cooled water droplets plunge into the thunderstorm downdraft and then spread when reaching the ground surface. Shelf clouds are usually associated with a line of thunderstorms. What seems to be the most menacing of all the storm clouds, the shelf cloud is actually formed from the boundary between the downdraft and updraft of a thunderstorm. Most form on the leading edge of the gust front and can often be associated with a thunderstorm, but not always.
It has a single crest and moves without changing speed or shape. Often mistaken for shelf clouds, this rare formation is completely detached from other cloud formations. The roll cloud is a low, horizontal, tube shaped cloud and a rare form of the arcus cloud. Disclaimer *This is by no means should replace the forecasting provided by professionally, trained meteorologists.
#SHELF CLOUD ANVIL CLOUD SERIES#
This series is designed to give you a general understanding of what these cloud formations mean and allow you to explore the signs yourself. Paying attention to the texture, shape, height and time of the day they form can help you determine if the weather is going to change. This three part series explores the various types of clouds you see everyday in the sky. What’s That Storm Cloud In The Sky? - (Part 3 of 3) Instant Weather What’s That Storm Cloud In The Sky? - (Part 3 of 3) InstantWeather
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