Pronunciation: [klˈa͡ʊd bˈaŋk] (IPA) 
The spelling of the word "cloud bank" is phonetically transcribed as /klaʊd bæŋk/. The first syllable, "cloud," is pronounced with the diphthong /aʊ/ as in the word "out." The second syllable, "bank," is pronounced with the short vowel /æ/ as in the word "cat," followed by the nasal consonant /ŋ/ as in the word "sing." A cloud bank is a collection of clouds, often appearing along a horizon like a bank of fog.
A cloud bank refers to a localized, horizontal mass of clouds that appears in the sky and resembles a bank or ridge. It typically forms due to certain atmospheric conditions, such as the presence of cold air moving over a warmer surface, leading to the creation of distinct cloud formations. Cloud banks are often seen near bodies of water, such as oceans, lakes, or rivers, where the temperature contrast between the water and the air may be significant.
These cloud formations are characterized by a line or series of clouds extending across the horizon, giving the impression of a wall or bank of clouds. They can vary in size and shape, ranging from narrow strips to large and continuous formations that stretch for miles. Cloud banks are usually smooth and flat at the bottom, with a distinct boundary that separates them from the clear sky. The top portion of the clouds may appear more billowy or irregular in shape.
Cloud banks can have diverse appearances depending on the specific cloud type involved, such as stratocumulus, altocumulus, or nimbostratus clouds. They often bring changing weather patterns, such as an approaching storm or frontal system. The presence of a cloud bank can indicate a shift in atmospheric conditions and serve as an observable phenomenon that assists meteorologists in forecasting upcoming weather events. Observing the movement, development, and dissipation of cloud banks can provide valuable insights into atmospheric dynamics and weather patterns.
The word "cloud bank" is a compound noun formed by combining the words "cloud" and "bank".
The term "cloud" originates from the Old English word "clud" which referred to a mass of rock or hill. Over time, this word evolved to mean a visible mass of condensed water vapor floating in the atmosphere.
The word "bank" comes from the Old Norse word "bakki" which meant "an elevation" or "slope". It later came to be associated with a mound or ridge of earth, and then extended its meaning to include financial institutions and similar establishments.
Therefore, when combined, "cloud bank" refers to a large and distinct mass of clouds that appears to be elevated or forming a slope-like shape in the sky.
