Heat Advisory

* WHAT...High temperatures as hot as the upper 90s to 108 and low temperatures as warm as the upper 60s to mid 70s. Hottest conditions expected Thursday through Sunday.

* WHERE...San Bernardino and Riverside County Valleys-The Inland Empire.

* WHEN...From 10 AM Wednesday to 8 PM PDT Monday.

* IMPACTS...Hot temperatures may cause heat illnesses.

* ADDITIONAL DETAILS...Widespread moderate to localized major HeatRisk. Elevated low temperatures will limit overnight relief from the heat.