California is poised to hit a fearsome milestone: 4 million acres (1.6 million hectares) burned this year by wildfires that have killed 31 people and incinerated hundreds of homes in what is already the worst fire season on record. Fire crews at a blaze in the wine country north of San Francisco were on high alert Friday as forecasters warned of extreme fire danger into Saturday. Powerful winds didn’t materialize early Friday, allowing fire crews a chance to make gains.
