SACRAMENTO, Calif. (AP) — A second day of hot weather and dry wind stoked new wildfires across northern California on Wednesday as firefighters battled blazes that have damaged at least 50 homes and threaten hundreds more.

About 1,500 residents in the heavily forested hills north of Santa Cruz were told Wednesday afternoon to leave their homes as a quick-moving wildfire spread through the area.

The 300-acre blaze broke out in the Bonny Doon area of Santa Cruz County just before 3 p.m. Wednesday, the California Department of Forestry and Fire Protection said.

Battalion Chief Paul Van Gerwen said the fire threatened about 1,000 homes and had already set several structures ablaze. He said the fire could spread to as many as 1,000 acres before firefighters would be able to begin slowing it.