* WHAT...For the Heat Advisory, heat index values of 105 to 109 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values up to 111 possible.
* WHERE...Portions of eastern, south central, and southeast Virginia.
* WHEN...For the Heat Advisory, from 10 AM to 8 PM EDT Thursday. For the Extreme Heat Watch, from Friday morning through Friday evening.
* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.