A heat dome building on the western side of the United States may break records this week, surging temperatures to 119 degrees in California.

A widespread heat wave is expected to intensify fire concerns across California as temperatures rise and landscapes further dry out. The Gifford, Rosa and Gold fires are burning.

Triple-digit temperatures will arrive in parts of Southern California on Wednesday as a heat wave descends, exacerbating the woes of firefighters who already are battling a number of wildfires across the region.