Black Ice

Posted by on Friday, October 21, 2016

Black ice is a transparent coating of ice, found especially on a road or other paved surface.

It typically forms when light rain or drizzle falls on a road surface that is at a temperature below 0 °C. Since it only accumulates in a thin fashion it is highly transparent and difficult to see.

When the temperature is below freezing and the wind is calm, such as under a high atmospheric pressure at night in the fall, a thin layer of ice will form over open water of a lake. If the depth of the body of water is large enough, its color is black and can be seen through the ice, thus the name black ice.



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