Heat Advisory

* WHAT...For the Dense Fog Advisory, visibility of one quarter mile or less in dense fog. For the Heat Advisory, heat index values up to 105 expected.

* WHERE...In Kentucky, Lewis County. In Ohio, Hocking, Pike, Ross, and Scioto Counties.

* WHEN...For the Dense Fog Advisory, until 9 AM EDT this morning. For the Heat Advisory, from noon Tuesday to 8 PM EDT Thursday.

* IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Low visibility could make driving conditions hazardous.