Overview

• Cal Fire estimated the blaze at about 10 acres as of 4:30 p.m., up from roughly 4 acres earlier in the afternoon.
• Officials said the fire could grow to as much as 250 acres near the San Diego–Riverside county line.
• Authorities updated their assessment to say structures are threatened after initial reports indicated no immediate risk.
• Aircraft executed water drops over the Sandia Creek Road area, where limited access is slowing ground operations.
• Meteorologist reports put humidity around 60%, which reduces fast spread but adds to the strain on firefighters.