* WHAT...Dangerously hot conditions with temperatures of 95 to 110 expected.
* WHERE...A large portion of southwest California including the coastal ranges and adjacent foothills, as well as the coastal valleys.
* WHEN...From 10 AM Friday to 8 PM PDT Sunday.
* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
* ADDITIONAL DETAILS...Heat hazards may extend into next week for portions of the region.