Credit: WEATHERVIDEOHD.TV/SCIENCE PHOTO LIBRARY

Caption: Timelapse footage of a classic roll cloud, showing the rotation from which it takes its name. Roll clouds form when cool air from a storm cloud's downdraft hits the ground and spreads out, undercutting warmer air and raising it to a level at which condensation occurs. Filmed in the USA on a spring afternoon.

Release details: Model release not required. Property release not required.

Keywords: america, arcus, atmosphere, changeable, cloud shadows, clouds, cumulonimbus, downdrafts, environment, late afternoon, meteorology, outflow boundary, rain falling, roll cloud, spring, storm, stratus, threatening, timelapse, turbulent, us, usa, weather, wind shear

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.

Roll cloud, timelapse

K003/5936 Royalty Free

Downloadable master

Duration: 00:00:11.08

Frame size: 1920x1080

Frame rate: 29.97

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 276.9M

Original

Capture format: DVCPRO HD

Frame size: 1280x1080

Codec: DVCPRO HD 1080i60

Interlaced: Yes

Please contact Science Photo Library if you require the original, or other formats.

 

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