31. This mean the cloud tops will reach higher levels than the surrounding cloud in the updraft region. 32. By the morning of November 6, the eye became less defined and the cloud tops around it warmed. 33. On August 19, cold cloud tops reappeared, although this brief revival has been attributed to non-tropical baroclinic instability. 34. Further, cloud tops with a lot of small-scale variation are likely to be more vigorous than smooth-topped clouds. 35. The CCC pattern indicates little development is occurring, despite the cold cloud tops associated with the quickly evolving feature. 36. Cloud tops around the center warmed again early on September 15 and Isabel weakened to a Category 4 hurricane.37. Gradual strengthening occurred throughout November 1, as Michelle's cloud tops began to cool as it drifted northward, signifying strengthening. 38. However, it was recorded colder cloud tops surrounding the center were still bringing heavy rainfall over the northern Philippines. 39. As the cloud tops of tropical cyclones are high and cold, and their air is humid-their rainwater is'lighter '. 40. Surprisingly, the illuminated and dark poles, and most of the planet, show nearly the same temperature at the cloud tops .
