Heat Advisory

* WHAT...Temperatures of 90 to 110 degrees, hottest on Wednesday and over interior areas.

* WHERE...San Luis Obispo County Interior Valleys, San Luis Obispo County Mountains, Southern Salinas Valley, and Southern Ventura County Mountains.

* WHEN...Until 8 PM PDT Thursday.

* IMPACTS...There is a high risk for dangerous heat illness for anyone, especially for the very young, the very old, those without air conditioning, and those active outdoors.

* ADDITIONAL DETAILS...Humid conditions will add to the heat to potentially worsen heat impacts. Effects of the heat will build through the week, with warm overnight low temperatures providing little relief from the heat.