Fog in Islam

[strivingobserver98]

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 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

But has anyone found any other knowledge on it?

:jz: