United States Air Force Air Demonstration Squadron, Thunderbirds, perform for the Thunder Over Michigan Air Show Aug. 8, 2021, in Ypsilanti, Michigan. The vortex shown forms when where there is a little or no crosswind to interrupt the flow of air. Although typically invisible in standard conditions, the vortex becomes visible with enough humidity where condensation can occur.

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Size: 1870px × 1336px
Photo credit: © Operation 2021 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: angels, blue, delta, super, thunderbirds, usafads, usnfds