There's a very small chance that a roll cloud can turn into a spherical cloud, this one was observed in Japan 2016. : r/nevertellmetheodds
Rhode Island Roll Cloud Looks Otherworldly - Videos from The Weather Channel
The Vortex: Roll cloud over Lake Michigan | Michigan in Pictures
Watch: Freaky cloud rolls over Lake Michigan | WLUK
Roll cloud appears over Texas Hill Country | kvue.com
Morning Glory cloud - Wikipedia
Rare roll cloud sweeps across Durban, South Africa | Natural World | Earth Touch News
Roll cloud captured on video in Northern Michigan - YouTube
Shelf Clouds and Roll Clouds: Not Tornadoes, But Still Scary and Ominous (PHOTOS) | The Weather Channel
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13 Ominous Photos and Videos of Roll Clouds
Sideways funnel cloud? Nope — Little Catalina sees roll cloud | CBC News
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13 Ominous Photos and Videos of Roll Clouds
PHOTOS: Rare cloud phenomenon rolls into Valley | Daily Telegraph
Apocalyptic 'roll cloud' spanning hundreds of miles sparks mass panic on beach - Daily Star
Roll Cloud, Shelf Cloud - EPOD - a service of USRA
Rare, spectacular roll cloud tumbled over Nebraska Thursday morning - The Washington Post
File:Roll-Cloud-Racine.jpg - Wikimedia Commons
Unbelievably Fantastic Facts About Roll Clouds - Science Struck
Fognado' in Santa Cruz was a roll cloud, meteorologists say
Bizarre, Giant Tubular Cloud Rolling Across the Sea (Photo) | Live Science
Do you remember? - Roll cloud draws eyes to sky | Southlands Sun
Ominous UFO-like cloud identified as rare "roll cloud" - CBS News
Rare roll cloud sweeps across Durban, South Africa | Natural World | Earth Touch News
Viral Video Shows Tsunami-Like Clouds, Internet Calls It "Terrifying Yet Majestic"
We ranked cloud types so you don't have to | Mashable
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13 Ominous Photos and Videos of Roll Clouds
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