Saturday, December 1, 2012

How does fog form?

                                  How does fog form?

In morning, I could see fog in the surroundings of my house. In the place of high humidity , like ours ,  fog is formed. Tiny water droplets are also dropping on the head.
Fog is a natural weather condition that can cause visibility to become zero. In some places, (not ours !) schools delay their opening time,  until the Sun burns fog off.
How does the fog form ? Fog is basically a cloud on the ground. These clouds are the collection of tiny water droplets formed when evaporated water is cooled. The infrared cooling is responsible for the fog formation .
Infrared cooling is formed due to the change of seasons from summer to fall and winter.  During the summer , the ground absorbs solar radiation. As air passes over it, it is made moist and warm. This mass of warm air collides with cooler air.
This cause the water vapour in the air mass to condense quickly  and fog is formed.

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