California is set to experience an exceptionally long heat wave that is expected to last for weeks, with temperatures soaring into triple digits across Southern California. Meteorologists have warned residents to prepare for dangerous conditions, which include an increased risk of wildfires. Cooling center hours have been extended in San Diego, and various cities, including Los Angeles and Santa Barbara, have issued extreme heat warnings. The heat wave is anticipated to peak over the weekend, prompting residents to conserve power and seek relief from the scorching temperatures.