What is super fog? The mix of smoke and dense fog caused a deadly pileup in Louisiana
By ISABELLA O’MALLEY and KEVIN McGILL
Associated Press
A combination of fog and thick smoke from a marsh fire reduced visibility on Louisiana highways to near nothing on Monday. It caused a series of deadly crashes on Interstate 55 near New Orleans. The National Weather Service called the weather phenomenon “super fog.” It isn’t just another name for smog, which is formed when fog combines with smoke from pollutants. The weather service says the term super fog describes fog enhanced by smoke from damp, smoldering organic material. It can lower visibility to less than 10 feet. The super fog cleared by Monday evening. Efforts continue to and extinguish the marsh fire near New Orleans.
