Ladies and Gentlemen Today we will be witnessing a very strange natural phenomenon: 
Dark and heavy strange cloud will be approaching our small town. 

There is no any reason to panick yet since we don't know the real nature of it. 

Unfortunately all communications are down with our Meteo stations and our engineers went to the sites to locate the malfunctions. But no one has returned yet. Neither a one. Until now the cloud is slowly moving towards the center of the city and it is already 15 miles approximately away from us. All car movements from that side has been stopped. We made sure that no cars can come in and out of the coverage area of this cloud. 

Recently we have sent our scout vehicles. But as soon as they reach the perimeter of the cloud we loose all communications with them. 

Oh my God. This cloud is already 5 miles away from me. I see a blue acid-like smoke coming up from the earth. It's raining acid! There is no a shelter from the acid rain! The metal, the beton, it's all gone to shit! All leaving mass is vaporizing on it's way! Everything alive is turning into a boiling mass under this cloud. We have to run away, but where to? Oh my God... Oh my God... Oh my God... Oh my God... Oh my God...