New map shows Bay Area locations with highest risk of ember-driven wildfires

On a new Bay Area wildfire-risk map that gauges the threat of wind-driven embers, Lars Guntvedt’s neighborhood in the hills above Los Gatos sits in the highest-danger zone.

Like many of his of Aldercroft Heights neighbors, and plenty of residents around the Bay Area, the 58-year-old school administrator felt confident he had slashed the danger to himself, his wife and their wooden home by diligently clearing the surrounding vegetation. The ember-risk map, Guntveld said, made him consider...