Cloud Base

The cloud base (or the base of the cloud) is the lowest altitude of the visible portion of the cloud. It is traditionally expressed either in m or feet above mean sea level (or planetary surface), or as the corresponding pressure level in hectopascal (hPa, equivalent to millibar).

Read more about Cloud Base:  Measurement, Weather and Climate Relevance

Famous quotes containing the words cloud and/or base:

    Let chaos storm!
    Let cloud shapes swarm!
    I wait for form.
    Robert Frost (1874–1963)

    It is a base thing for a man among the people not to obey those in command. Never in a state can the laws be well administered when fear does not stand firm.
    Sophocles (497–406/5 B.C.)