A mysterious thick fog has swept across the US with multiple communities reporting a "burning chemical-like smell," akin to a similar event last year when 70 million people were engulfed in dense fog.

AND ON FOG WATCH TONIGHT. YOU CAN SEE THE PONTCHARTRAIN CONSERVANCY CAM BEHIND ME. WE DON’T HAVE ANYTHING SHOWING UP HERE. WE’LL START WITH TEMPERATURES. AND THEY’RE NOT TOO FAR AWAY FROM TH ...