August 27, 2008
"f"og bank -- it's ABC Wednesday !
click photo for full-size image
photo by Donald Kinney
Hope everybody is having a great ABC Wednesday !
Around the San Francisco Bay Area, "f" stands for fog... No doubt about it...
Fog is a good thing because it brings relief from hot summer weather, but it can be a big problem for motorists and ships.
The Wikipedia says: "Fog formation does require all of the elements that normal cloud formation requires with the most important being condensation nuclei. When the air is saturated, additional moisture tends to condense rather than staying in the air as vapor. Condensation nuclei must be present in the form of dust, aeresols, pollutants, etc. for the water to condense upon. When there are exceptional amounts of condensation nuclei present, especially hydroscopic (water seeking such as salt, see below) then the water vapor may condense below 100% relative humidity".
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