Caption: Timelapse footage of the outflow boundary from a large approaching thunderstorm. The outflow boundary is marked by advancing shelf clouds, created when cold air falling from the thunderstorm undercuts warm air in front of it, lifitng it and causing condensation into cloud. This is a similar process to a small scale cold front. The winds associated with such features are hazardous to aircraft. Filmed in the USA on a summer afternoon.

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

Keywords: afternoon, america, atmosphere, clouds, cumulonimbus, downdraft, downdrafts, environment, hazard, hazardous, meteorology, outflow boundary, overcast, roll cloud, shelf cloud, stratus, summer, threatening, timelapse, turbulent, us, usa, weather, wind shear

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Thunderstorm outflow clouds, timelapse

K003/5955 Royalty Free

Downloadable master

Duration: 00:00:20.05

Frame size: 1920x1080

Frame rate: 29.97

Audio: No

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

File size: 543.7M


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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