Extreme Heat Warning

* WHAT...For the Extreme Heat Warning, dangerously hot conditions with high temperatures in the 90s with low temperatures in the 70s expected. For the Heat Advisory, high temperatures in the upper 80s to mid 90s expected.

* WHERE...Orange County Inland Areas.

* WHEN...For the Extreme Heat Warning, until 8 PM PDT Wednesday. For the Heat Advisory, from 8 PM Wednesday to 8 PM PDT Thursday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat events.

* ADDITIONAL DETAILS...Major HeatRisk. Warm overnight temperatures will limit relief from the heat.