| 11. | Chantal turned to the east and gained a weak outflow with cirrus clouds.
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| 12. | This outflow produces high, thin cirrus clouds that spiral away from the center.
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| 13. | "' Cirrus clouds "'are composed of ice crystals and shaped like hairlike filaments.
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| 14. | The wind and gravity disperse the narrow contrails, which form wispy cirrus clouds.
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| 15. | "' Cirrus cloud thinning "'is a proposed form of climate engineering.
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| 16. | Schoolchildren rarely come home discussing the difference between cirrus clouds and cumulonimbus ones.
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| 17. | Noticeably, they are the most common type of cirrus cloud.
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| 18. | Cirrus clouds that produced snow were sighted in Phoenix imagery.
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| 19. | And cirrus clouds may trap some warm air at night.
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| 20. | Cirrus clouds form on other planets, including Mars, Jupiter, Saturn, Uranus, and possibly Neptune.
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