31. Ominous thunderclouds instantly darkened the skies. 32. The thumbs have been bound by a shoelace and have swelled to the color of thunderclouds . 33. Her autobiography was transcribed by Nancy Oestreich Lurie and translated in consultation with Frances Thundercloud Wentz. 34. If you get enough water together in a thick thundercloud , the light will be slightly blue. 35. Sometimes, this warmer air can be buoyant enough to form thunderclouds above the wintry air below. 36. A type of lightning referred to as either sprites or ELVES occasionally forms far above tropospheric thunderclouds . 37. In the series debut, " Fight for Geronimo ", Chief Thundercloud portrays the Apache Geronimo. 38. The cultivar'Thundercloud 'has gained the Royal Horticultural Society's Award of Garden Merit. 39. About 3 o'clock, the air thickened and thunderclouds began to build up to the west. 40. The electric field strength within the thundercloud is not typically large enough to initiate this process by itself.
