* WHAT...Visibility down to a quarter mile or less in dense fog.
* WHERE...Central and Southern Sequoyah, Muskogee, Northern Sequoyah, Central Le Flore, Haskell, and Northern Le Flore Counties.
* WHEN...Until 9 AM CDT this morning.
* IMPACTS...Visibilities are expected to be reduced to less than one quarter mile by dense fog. Rapidly changing visibility will create hazardous driving conditions.