Clouds, fog, and so much more...

http://contest.afghanistanmatters.com/?cat=31
This photo of the Bagram valley, shows valley fog. Valley fog is formed by large amounts of moisture, clear skies, and little wind.

Radiation fog forms close to the ground. As the warm air rises, it allows for the cool air to roll down from the surrounding high points.


http://www.universetoday.com/
These cumulonimbus clouds over Afghanistan can produce lightning, thunder, and hail.


Cumulonimbus clouds are formed when a cool air front comes into contact with moist, hot air.


http://www.militaryphotos.net/
This photo taken at an outpost in Afghanistan, shows large amounts of hail, all formed by the repetition of rapid freezing and slight melting of water.

As the warm air current pushes the pellets up, they freeze. As the cold air current pushes the pellet down, it melts. This process is repeated multiple times to form hail.

http://gazingattheflag.blogspot.com/
Photo taken of the Bagram Airfield shows lighting hitting the ground outside of the base.

As a storm begins to dissipate, air pockets between the cloud and ground continue to hold a charge. This allows lightning to connect with the ground, moving from pocket to pocket.

Thunder produced at the same time as the lighting is produced from the rapid expansion and contraction of air due to rapid increase in heat. This expansion and contraction produces sounds waves, causing thunder.

All of these forms can have deadly consequences on the inhabitants of the area. They have the ability to cause damage to humans and random objects that get in their way.