* WHAT...Dangerously hot conditions with temperatures 100 to 110.
* WHERE...Antelope Valley and nearby foothills.
* WHEN...Until 8 PM PDT Wednesday.
* IMPACTS...There is a high risk for dangerous heat illness, especially for sensitive groups like the very young, the very old, those without air conditioning, and those active outdoors.
* ADDITIONAL DETAILS...Heat hazards may extend into next week for portions of the region.