Sentences with phrase «cumulonimbus clouds during»

In cumulonimbus clouds during conditions where graupels are repeatedly wetted and then injected back toward high altitudes by strong updrafts, very large graupels called hail result.

Not exact matches

Textbook cumulonimbus - formed summer thunderstorms are fairly rare [25] in Los Angeles, because the atmosphere over the coastal basin is generally too stable and dry, especially during summer, to allow the strong vertical development necessary for mature cumulonimbus clouds.