Fog in Islam

Subhan Allah take a look at the London fog today, all the city covered.



This made me think, is there anything else in Islam related to fog? The wisdom behind why Allah :swt: does it?

Of course it's one of the signs of Qiyamah, "The fourty day smoke/fog".

Fog or smoke will cover the skies for forty days. The non-believers will fall unconscious, while Muslims will be ill (develop colds). The skies will then clear up.

http://www.central-mosque.com/signs/SignsOfQiyammah.htm

Click to expand...

But has anyone found any other knowledge on it?

:jz: