Heat Advisory

* WHAT...For the Extreme Heat Warning, dangerously hot conditions with high temperatures of 100 to 106 with low temperatures in the 70s expected. For the Heat Advisory, high temperatures in the 90s expected.

* WHERE...Orange County Inland Areas.

* WHEN...For the Extreme Heat Warning, until 8 PM PDT this evening. For the Heat Advisory, from 8 PM this evening 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.