Extreme Heat Warning

* WHAT...Dangerously hot conditions with temperatures up to 110 degrees expected and overnight low temperatures in the mid-80s to low 90s.

* WHERE...Coachella Valley, San Diego County Deserts, and San Gorgonio Pass near Banning.

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

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

* ADDITIONAL DETAILS...Areas of major HeatRisk. Elevated lows will limit overnight relief from the heat.