Dozens of protests, marches and rallies are scheduled across the Bay Area on Saturday as part of a national "No Kings" mass protest against President Trump and his administration, the second such nationwide protest organized this year.

The film jumps from San Quentin to San Jose, Botswana to Antarctica. Along the way, it threads in familiar faces — Tony Hawk tipping his helmet to Metallica’s skate-scene roots, John Cena thrashing around in the pit, and a few academics who help decode what makes the band’s sound hit so hard.

San Francisco Peninsula Coast, Northern Monterey Bay and Southern Monterey Bay and Big Sur Coast as well as San Francisco County are included in a dense fog advisory released by the National

PurpleAir sensors reported elevated levels of unhealthy air around the Bay Area on Saturday morning, with motorists noting a haze throughout San Francisco.

The Portland-based folk band's San Francisco roots run deep. Lead singer Colin Meloy and his future wife Carson Ellis lived here in their 20s, and while working as a hot dog vendor, Ellis nearly set fire to the Hyde Street Pier. The incident helped inspire the band's 2002 ode to the city, "Grace Cathedral Hill."