Fog
Fog is a collection of liquid water droplets or ice crystals suspended in the air at or near the Earth's surface. While fog is a type of stratus cloud, the term "fog" is typically distinguished from the more generic term "cloud" in that fog is low-lying, and the moisture in the fog is often generated locally (such as from a nearby body of water, like a lake or the ocean, or from nearby moist ground or marshes). Fog is distinguished from mist only by its density, as expressed in the resulting decrease in visibility: Fog reduces visibility to less than 1 km (5/8 statute mile), whereas mist reduces visibility to no less than 1 km . For aviation purposes in the UK, a visibility of less than 5 km but greater than 999 m is considered to be mist if the relative humidity is 70% or greater – below 70% haze is reported..
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Famous quotes containing the word fog:
“The brown waves of fog toss up to me
Twisted faces from the bottom of the street,
And tear from a passer-by with muddy skirts
An aimless smile that hovers in the air
And vanishes along the level of the roofs.”
—T.S. (Thomas Stearns)
“Bonnie Lee: Mr. Carter, Mr. Carter, do you really think, I mean, do you really think it was my fault, what happened out there?
Geoff Carter: Sure it was your fault. You were gonna have dinner with him, the Dutchman hired him, I sent him up on schedule, the fog came in, a tree got in the way. All your fault. Forget it unless you want the honor.”
—Jules Furthman (1888–1960)
“Let us go in; the fog is rising.”
—Emily Dickinson (1830–1886)