What is fog?

  • (noun): Confusion characterized by lack of clarity.
    Synonyms: daze, haze
    See also — Additional definitions below


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..

Read more about Fog.

Some articles on fog:

Climate Of Ireland - Fog
... Fog is more common inland and on higher altitudes mainly during winter and during the morning at times of high pressure ... is that at Cork Airport, County Cork, which has 99.5 days of fog per year ... Island, County Kerry, which has 8.9 days of fog per year ...
London Fog (company) - In Popular Culture
... partner - discuss their client, London Fog ... Don to suggest the tagline for the London Fog campaign "Limit your exposure" ... Men star Christina Hendricks was contracted as the new celebrity model for London Fog ...
Fog - Biological and Human Uses
30 to 40 percent of their moisture from coastal fog ... Some coastal communities use fog nets to extract moisture from the atmosphere where groundwater pumping and rainwater collection are insufficient ...
Lost In The Fog Stakes
... The Lost in the Fog Stakes is an American ungraded stakes run at Golden Gate Fields in Albany, California for Thoroughbred two-year-old horses ... A five-furlong sprint, the race is named in honor of Lost in the Fog, the brilliant sprinter who made his name between 2004 and 2006 before dying of lymphoma at age four ... First run on June 10, 2007, the Lost in the Fog offers a purse of $75,000 (includes $15,000 CBOIF California Bred Owner Fund) and is a proving ground for ...
List Of Around The World With Willy Fog Episodes
... is a list of episodes of the animated television series Around the World with Willy Fog ... Episode 1 - The Wager Willy Fog hires Rigodon, a former circus performer, to replace the butler he dismissed the previous day and, unknowingly ... Later, Fog tells his fellows at London's Reform Club that he has read an article which suggests one can travel around the world in eighty days ...

More definitions of "fog":

  • (noun): Droplets of water vapor suspended in the air near the ground.
  • (noun): An atmosphere in which visibility is reduced because of a cloud of some substance.
    Synonyms: fogginess, murk, murkiness

Famous quotes containing the word fog:

    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)

    Let us go in; the fog is rising.
    Emily Dickinson (1830–1886)

    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)