Adding to what's predicted to be a record-setting day of heat Friday, smoke from several wildfires burning north of the Bay Area has now migrated southward and settled in over parts of the East Bay and Marin, creating a noticeable haze. Some residents have even reported smelling smoke, as KRON 4 reports.

In particular, residents of Danville, Concord, and Clayton seem to be seeing the worst of the residual smoke.

The Ponderosa Fire, burning in Butte County near Lake Oroville since Tuesday afternoon, has grown to over 3,500 acres and has already destroyed 10 homes, with 500 more under threat. As KCRA reports, a 29-year-old Oroville man has been arrested in connection with the fire, which is believed to have been started with an illegal campfire.

Also burning to our north is the Tohakum 2 Fire in Nevada, which began with a lightning strike near the site of Burning Man, which briefly closed the main artery into the festival on Sunday.

According to NBC Bay Area
, we're also getting smoke from wildfires burning in Oregon, which is drifting down the coast and blowing in through the Golden Gate.