At least 5 people killed in Northern California wildfires

Flames from the LNU Lightning Complex fires jump Interstate 80 in Vacaville, Calif., Wednesday. (AP Photo/Noah Berger)

Flames from the LNU Lightning Complex fires burn in unincorporated Napa County, Calif., on Tuesday. (AP Photo/Noah Berger)

SANTA CRUZ, Calif. — Dozens of wildfires raging throughout Northern California have now claimed at least five lives and threaten tens of thousands of homes, authorities said Thursday.