* WHAT. For the Excessive Heat Warning, dangerously hot conditions with heat index values up to 111. For the Heat Advisory, heat index values up to 108 expected. * WHERE. Portions of northeast North Carolina and central, east central, eastern, north central, south central, and southeast Virginia. * WHEN. For the Excessive Heat Warning, until 8 PM EDT this evening. For the Heat Advisory, from 11 AM to 8 PM EDT Saturday. * IMPACTS. Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT. Heat index values up to 109 expected. * WHERE. Portions of northeast North Carolina and central, east central, eastern, north central, south central, and southeast Virginia. * WHEN. From 11 AM to 8 PM EDT Saturday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.