Dangerous heat grips Southern California as temperatures could top 105°

A dangerous, long-duration heatwave is sweeping through much of Southern California beginning Friday, creating increased fire risk in the region.Extreme to moderate heat warnings are in place for more than 34 million Californians, with temperatures forecast to reach between 92 and over 105 degrees, including along the coastal plains.ABC News - PHOTO: Dangerous Heat Wave MapThe National Weather Service in Los Angeles warned the conditions have created a high risk of "large and fast-moving fires"