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.

BATON ROUGE, La. (WAFB) - NICE WEATHER CONTINUES EXCEPT FOR AM FOG: A string of nice weather days will continue with a very mild evening for LSU baseball tonight as they take on the Rajun Cajuns ...

MANCHESTER, CT (WFSB) - Fog was an issue for drivers on Tuesday morning. Meteorologist Scot Haney said visibility was low along the Connecticut River valley. “Fog is tough out there [Tuesday ...