| 41. | The season for wispy cirrus clouds has begun.
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| 42. | Contrails can also trigger the formation of high-altitude Cirrus cloud thus creating a greater climatic effect.
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| 43. | Over the coast, some early morning cirrus clouds from the remnants of Hurricane Earl will gradually dissipate.
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| 44. | Jokes fly like the cirrus clouds outside.
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| 45. | As warm air is forced to glide over heavier cold air, wisps of cirrus clouds often form.
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| 46. | Inside the restaurant, there's room for 58 to sit beneath a turquoise ceiling painted with cirrus clouds.
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| 47. | Research shows that some contrails expand into huge, natural-looking cirrus clouds that cover thousands of square miles.
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| 48. | Even on a hot summer day in Massachusetts, you can see cirrus clouds, which are ice crystal clouds.
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| 49. | Contrails are similar to cirrus clouds, naturally occurring clouds found at altitudes around 20, 000 feet, Toon said.
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| 50. | Researchers have long known that cirrus clouds usually block the escape of Earth's infrared radiation, heating the planet.
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