Mammatus Clouds Over NYC June 26, 2009 8:30pm Featured on CNN International

Mammatus Clouds over Manhattan we driving after the rains heading to pier 40 on the west village to party @ queen mary when suddenly we stop and started to shoot this rare cloud formation i never seen something like this and to have seen it on my friends b-day was a crazy moment ... below the researchwe been featured on CNN copy and paste link to see for your self ..http://edition.cnn.com/video/#/video/offbeat/2009/06/29/moos.freaky.clouds.cnn?iref=videosearchMusic by dj manny just goffing off...lol...From Wikipedia, the free encyclopediaMammatus are most often associated with the anvil cloud that extends from a cumulonimbus, but may also be found under altocumulus, altostratus, stratocumulus, and cirrus clouds, as well as volcanic ash clouds.[citation needed] In the United States, sky gazers may be most familiar with the very distinct and more common cumulonimbus mammatus. When occurring in cumulonimbus, mammatus are often indicative of a particularly strong storm or maybe even a tornadic storm. These tend to form more often during warm months and over the midwest and eastern portions of the United States, and more infrequently over the west and southwest. Due to the intensely sheared environment in which mammatus form, aviators are strongly cautioned to avoid cumulonimbus with mammatus.Mammatus may appear as smooth, ragged or lumpy lobes and may be opaque or semitransparent. Because mammatus occur as a grouping of lobes, the way they clump together can vary from an isolated cluster to a field of mamma that spread over hundreds of kilometers to being organized along a line, and may be composed of unequal or similarly-sized lobes. The individual mammatus lobe average diameters of 13 km and lengths on average of 0.5 km. A lobe can last an average of 10 minutes, but a whole cluster of mamma can range from 15 minutes to a few hours. They usually are composed of ice, but also can be a mixture of ice and liquid water or be composed of almost entirely liquid water.