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Fog is a visible aerosol consisting of tiny water droplets or ice crystals suspended in the air at or near the Earth's surface. [1] [2] Fog can be considered a type of low-lying cloud usually resembling stratus and is heavily influenced by nearby bodies of water, topography, and wind conditions.
Fog is a common weather phenomenon in the San Francisco Bay Area and the entire coastline of California extending south to the northwest coast of the Baja California Peninsula. The frequency of fog and low-lying stratus clouds is due to a combination of factors particular to the region that are especially prevalent in the summer.
Tule fog is a radiation fog, which condenses when there is a high relative humidity (typically after a heavy rain), calm winds, and rapid cooling during the night. The nights are longer in the winter months, which allows an extended period of ground cooling, and thereby a pronounced temperature inversion at a low altitude.
Fog is considered dense when the visibility is 1/4 of a mile or less. Nationwide, there were more than 1,100 weather-related flight delays on Thursday morning, according to FlightAware.com. On ...
Sea of fog riding the coastal marine layer through the Golden Gate Bridge at San Francisco, California Afternoon smog within a coastal marine layer in West Los Angeles. A marine layer is an air mass that develops over the surface of a large body of water, such as an ocean or large lake, in the presence of a temperature inversion.
By Saturday morning, the fog could be so dense that visibility drops to below 100 metres in some places, the Met Office said. Warnings over freezing fog as cold snap continues Skip to main content
The NWS has currently issued two winter storm warnings and two winter weather advisories in areas such as the Central Coast, Seattle, Everett, the Olympics and Bellevue, as well as a freezing fog ...
Conditions associated with a marine layer, a stable atmosphere common on the west side of continents near cold water currents, leads to overnight and morning fog. [11] Undular bores can form when a low level boundary such as a cold front or outflow boundary approaches a layer of cold, stable air.