EXTREME HEAT July 3, 2024 11:18 pm Firefighters on high alert Firefighters are bracing themselves for a busy day ahead of the Fourth of July. But fire crews also have a warning for those wanting to partake in fireworks. Jocelyn Moran reports. US & World Videos 2:25 In the news: Teens storm shopping center, Congressional District 16 debate, excessive heat warning 3:26 Vianey's forecast: Heat wave persists 2:28 Buster Posey plans to bring Giants back to respectability, winning 2:00 Claudia Sheinbaum sworn in as Mexico's 1st female president 2:00 Autumn heat wave bakes the Bay Area