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:
“You say, “It is dark.” And in truth, I did place a cloud before your sun. But do you not see how the edges of the cloud are already glowing and turning light.”
—Friedrich Nietzsche (1844–1900)
“Were I as base as is the lowly plain,
And you, my Love, as high as heaven above,
Yet should the thoughts of me, your humble swain,
Ascend to heaven in honour of my love.”
—Joshua Sylvester (1561–1618)