roll cloud
very long weird cloud rolling in the sky!
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2. Comment rated too low. Show this comment banzemanga 348 days ago
It is a massive vertical tornado! 
Nature is as amazing as ever. 
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5. Comment rated too low. Show this comment tiggfigg 348 days ago
Barrel Roll, Barrel Roll, DO DO DO A BARREL ROLL!!!! DO THE BARREL ROLL!!!! 
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7. Comment rated too low. Show this comment zerorain 348 days ago
global warming Fing up our clouds...
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9. GhostInShell 348 days ago
A roll cloud is a low, horizontal, tube-shaped, and relatively rare type of arcus cloud. They differ from shelf clouds by being completely detached from other cloud features. Roll clouds usually appear to be "rolling" about a horizontal axis. They can be described as a solitary wave or a soliton, which is a wave that has a single crest and moves without changing speed or shape. One of the most famous frequent occurrences is the Morning Glory cloud in Queensland, Australia. One of the main causes of the Morning Glory cloud is the mesoscale circulations associated with sea breezes that develop over the Cape York peninsula and the Gulf of Carpentaria. However similar features can be created by downdrafts from thunderstorms and are not exclusively associated with coastal regions.
Coastal roll clouds have been seen over California, the English Channel, Shetland Islands, Lithuania, Eastern Russia, other maritime regions of Australia, off the Mexican coast in the Sea of Cortez, Uruguay, in the Canadian provinces of Nova Scotia and Ontario and Campos dos Goytacazes and Coronel Vivida bay in Brazil.
FYI
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It's either what #9 said. Or its a transitional gateway designed to carry alien spacecraft over long distances 
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16. Comment rated too low. Show this comment talpazzo 348 days ago
This is a highway in alien mode, so they can travel from a city to another without being spotted!
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Hi monkeyboy,
do you happen to know where and when this video hast been taken?
At least the country?
thanks for answering...
(118 votes)
+4
1. pidgeburger 348 days ago
Watch for falling plane engines...