* WHAT…Visibility one quarter mile or less in dense fog. Near
zero visibility expected in areas where superfog develops.
* WHERE…Portions of southeast Louisiana and southern Mississippi.
* WHEN…Until 10 AM CST Friday.
* IMPACTS…Low visibility could make driving conditions hazardous.
* ADDITIONAL DETAILS…Areas downstream of two marsh fires including
much of the southshore may experience extremely low visibilities
as fog and smoke mix to potentially form superfog during the
Friday morning commute.