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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.
The water vapor produces the sea smoke fog and is usually misty and smoke-like. [30] Garúa fog near the coast of Chile and Peru [31] occurs when typical fog produced by the sea travels inland but suddenly meets an area of hot air. This causes the water particles of fog to shrink by evaporation, producing a "transparent mist".
A Santa Ana fog is a derivative phenomenon in which a ground fog settles in coastal Southern California at the end of a Santa Ana wind episode. When Santa Ana conditions prevail, with winds in the lower 2 to 3 kilometers (1.2 to 1.9 mi) of the atmosphere from the north through east, the air over the coastal basin is extremely dry, and this dry ...
The Andes mountain range which runs along the Pacific coast of South America divides Chile and Peru into inland and coastal regions, and its proximity to the sea coupled with the steep change in elevation (and thus surface temperature) allow for fog to form along the Pacific coast and supply moisture to the otherwise arid desert.
In the Fuegian Archipelago (Tierra del Fuego) in South America as well as in Alaska in North America, a wind known as a williwaw is a particular danger to harboring vessels. Williwaws originate in the snow and ice fields of the coastal mountains, and they can be faster than 120 kn (220 km/h; 140 mph). [11]
Sea of clouds in Mount Pulag, Philippines. A sea of clouds is an overcast layer of stratocumulus clouds, as viewed from above, with a relatively uniform top which shows undulations of very different lengths resembling waves on the sea. [1] A sea of fog is formed from stratus clouds or fog and does not show undulations. [2]
A Catalina eddy is rarely prolonged. As the heat over the deserts causes air to rise, the resulting pressure gradient and increase in the normal onshore winds causes the vortex to dissipate. The result is the common local weather forecast calling for "late night and early morning low clouds and fog, followed by afternoon sunshine and sea breezes."
The foothill regions of these mountains experience some of the thickest fog and drizzle, as they are essentially in the clouds at this point. [ 1 ] The marine layer clouds of a June Gloom day usually are at their maximum at dawn, when the surface air is at a minimum temperature and the temperature difference in the inversion layer is at its ...