Caption: Timelapse footage of fast-growing cumulus clouds with pileus clouds at their tops. The pileus cloud appears as a horizontal cap, and is most visible at centre right here. They form as the rising air in the cumulus cloud pushes a parcel of moist air upwards, causing it to condense. They are indicative of powerful updrafts, and therefore a good sign of an impending storm. Filmed in Colorado, USA, in summer.

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

Keywords: afternoon, altocumulus, america, atmosphere, atmospheric, bright, cap cloud, chaotic, clouds, congestus, cumulus, environment, meteorological, meteorology, north america, pilei, pileus, scarf cloud, sky, summer, tcu, timelapse, towering, turbulent, united states, us, usa, weather

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Pileus clouds, timelapse

K003/4995 Royalty Free

Downloadable master

Duration: 00:00:24.22

Frame size: 1920x1080

Frame rate: 29.97

Audio: No

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

File size: 846.3M


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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