* WHAT...For the Extreme Heat Warning, dangerously hot conditions with temperatures up to 98 expected. For the Wind Advisory, east winds 15 to 25 mph with gusts to 40 mph expected.
* WHERE...Santa Ana Mountains and Foothills.
* WHEN...For the Extreme Heat Warning, from 10 AM this morning to 8 PM PDT Thursday. For the Wind Advisory, from 6 AM to 6 PM PDT Saturday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Heat related illnesses increase significantly during extreme heat events.