VIDEO Source: SAN DIEGO (CNS) – The first major heat wave of the season is poised to hit San Diego County Friday and send temperatures soaring up to 20 degrees above normal and into the triple digits in several locales.

High temperatures expected today amid mostly sunny skies following dense morning fog were of 73 to 78 degrees at the beaches, 83 to 88 degrees inland, 86 to 91 degrees in the western valleys, 93 to 98 degrees near the foothills, 93 to 100 degrees in the mountains and 109 to 114 degrees in the deserts, according to the National Weather Service. Source