Extreme Heat Warning

* WHAT...For the Heat Advisory, heat index values up to 109. For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 111 expected.

* WHERE...In North Carolina, Stokes County. In Virginia, Amherst and Bedford Counties.

* WHEN...For the Heat Advisory, until 8 PM EDT this evening. For the Extreme Heat Warning, from 11 AM to 8 PM EDT Saturday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.