- Anatomy of a squall line cloud bank at sunset
- W002031Z
- Anatomy of a squall line cloud bank. The fading glow of sunset bathes this receding squall line in shades of red and orange. Sidelighting brings out the finely detailed structure. It began as a smooth sheet but is now mottled as wind shear and evaporation plus falling particles shape and pattern its layers, from the outermost ghost anvil to the thick, precipitating inner slope.
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