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:
“Like a man traveling in foggy weather, those at some distance before him on the road he sees wrapped up in the fog, as well as those behind him, and also the people in the fields on each side, but near him all appears clear, though in truth he is as much in the fog as any of them.”
—Benjamin Franklin (1706–1790)
“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)
“Even as fog continues to lie in the valleys, so does ancient sin cling to the low places, the depressions in the world consciousness.”
—Dewitt Bodeen (1908–1988)