Clouds and Precipitation

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Across
  1. 5. particles in the air that attract water vapor
  2. 7. precipitation that falls as liquid water. It freezes on contact with cold surfaces near the ground. It may cover everything with a glaze of ice. If the ice is thick, its weight may break tree branches and pull down power lines.
  3. 8. middle clouds that are bluish gray sheets
  4. 9. high, thin sheets that can cause rings around the moon.
  5. 11. billowing clouds of thunderstorms with anvil-shaped tops
  6. 14. large gray rolls across the sky
Down
  1. 1. thicker and darker than stratus and bring steady rain or snow
  2. 2. precipitation that forms when strong updrafts carry rain high into the troposphere. The rain freezes into balls of ice. This may happen over and over again until the balls of ice are as big as baseballs. This precipitation only forms in cumulonimbus clouds.
  3. 3. highest of all clouds. At high altitudes the air is very cold and has little water vapor. Thus, these clouds are thin and feathery and made of ice crystals.
  4. 4. high, thin clouds grouped in dots
  5. 6. precipitation that forms when snow melts as it falls through a layer of warm air and then refreezes. It turns into small, clear ice pellets as it passes through a cold layer near the ground.
  6. 9. fair weather clouds that form low in the sky. They have flat bottoms and are puffy. They develop from warm air rising over heated land.
  7. 10. precipitation that forms when water vapor condenses as ice crystals. The air temperature is below freezing all the way to the ground, so the ice crystals remain frozen and fall as flakes.
  8. 12. low, gray sheets that completely cover the sky. They from in stable air where the air is not rising.
  9. 13. middle clouds that are grouped in dots