Typically rain and wind and sometimes flooding
Because - even if it's the 'right type of cloud' to produce rain - there's no guarantee that rain will actually fall.
rainstorms
Rainstorms are a major cause of flooding due to the rapid accumulation of water that can overwhelm drainage systems and cause rivers to overflow their banks. Snowmelt can also contribute to flooding, particularly when combined with heavy rainfall, but rainstorms are typically the more immediate and significant factor.
Rainstorms.
People may mistake monsoons for rainstorms because they both involve heavy rainfall. However, monsoons are seasonal winds that bring consistent, heavy rainfall over a prolonged period, whereas rainstorms are typically short-lived and characterized by sudden, intense downpours. Monsoons also have specific wind patterns and climatic conditions associated with them, while rainstorms do not.
there are duststorms sandstorms and rainstorms
The cast of Rainstorms and Brainstorms - 1917 includes: Max Asher Wadsworth Harris Kewpie Morgan Gladys Tennyson
Clouds that bring heavy rainstorms are typically known as cumulonimbus clouds. These towering clouds are associated with severe weather, including thunderstorms, heavy rainfall, and even tornadoes. They develop vertically and can reach great heights, often exhibiting a characteristic anvil-shaped top. When conditions are right, they can produce intense precipitation in a short period.
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Floyd A. Huff has written: '100-year rainstorms in the Midwest' -- subject(s): Charts, diagrams, Rainfall frequencies 'Drought climatology of Illinois' -- subject(s): Climate, Droughts 'Hydrometeorological characteristics of severe rainstorms in Illinois' -- subject(s): Depth-area-duration (Hydrometeorology), Rainstorms
http://en.wikipedia.org/wiki/Thunder
just wana see answer