Southern California faces extreme heat wave

Southern California is experiencing a prolonged heat wave with temperatures reaching 105°F inland and 8 to 12 degrees above normal, expected to rank among the hottest of the year. Heat advisories and extreme heat warnings have been issued across Los Angeles, San Diego, and Orange counties, with dangerous conditions including muggy air that prevents overnight cooling and increased fire risks.

This is a long-running storyline that has developed over 19 days. The homepage highlights its most recent activity, so the outlet count there reflects the latest wave. The totals above cover the full run.