Excessive Heat Warning issued June 17 at 3:13AM PDT until June 21 at 8:00PM PDT by NWS

...EXCESSIVE HEAT WARNING FOR THE MOUNTAINS AND DESERTS SUNDAY THROUGH WEDNESDAY... ...EXCESSIVE HEAT WARNING FOR THE VALLEYS AND INLAND ORANGE COUNTY SUNDAY THROUGH TUESDAY... .HIGH PRESSURE ALOFT OVER NORTHERN MEXICO WILL STRENGTHEN AND EXPAND NORTHWARD BRINGING A STRONG WARMING TREND FOR INLAND AREAS

from Current Watches, Warnings and Advisories for the United States Issued by the National Weather Service http://ift.tt/28JPzUC