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This Sunday morning, the fog has engulfed Gavà beach, in the Baix Llobregat, and the entire agricultural area, as seen in La Vanguardia Readers’ Photos. It’s been quite a show.
Coastal fog usually occurs especially in spring and summer, but the weather this year is crazy, as they say colloquially, so it is not strange that it manifests itself in autumn.
This phenomenon is the result of advection fog, which forms when relatively warm, moist air passes over a cold surface.
Fog refers to the suspension of small water droplets that produce visibility of less than 1 km. As you can see in the images, even walking along the shore of the beach you could barely see the water of the Mediterranean Sea.
And, as far as weather forecasts for the general public are concerned, when the term “fog” is used it usually refers to visibility of less than 180 meters.
