Temperatures will hit the triple digits in parts of the Southland starting Wednesday, Aug. 20, with the Woodland Hills neighborhood of Los Angleses in the San Fernando Valley hitting 109 F on Thursday, Aug. 21. – according to a National Weather Service forecast.

Extreme heat across the U.S. Southwest will build on Wednesday and is expected to last for several days. In Southern California, there are major fire and health concerns.

Much of Southern California is bracing for a major warm-up as heat returns to the region, threatening dangerous conditions. In preparation for the upcoming weather event, KCAL News has issued a Next Weather Alert to warn communities about the extreme heat and increased fire danger.

Warming Bernabel hit a game-winning single in the ninth inning as the Colorado Rockies rally to beat the Los Angeles Dodgers 4-3 on Monday night.

Colorado delivered late-inning fireworks at Coors Field, as the Rockies walked off the Los Angeles Dodgers in a thrilling showdown.