* WHAT...Visibility one quarter to one half mile in dense fog.
* WHERE...Portions of the eastern/southeastern Permian Basin, Lower Trans Pecos, Davis Mountains, and Big Bend.
* WHEN...Until 10 AM CST this morning.
* IMPACTS...Hazardous driving conditions due to reduced visibility. Patchy fog will drop visibility quickly over short distances. Visibility may become severely restricted near rivers, bridges, and other low-lying areas.