California wildfires at risk of sparking as wind blows in

More than 14,600 firefighters were on the lines of 13 active, large wildfires in California. (AP Photo/Jae C. Hong)

Dry lightning and blustery winds in California are unleashing a risk of new wildfires as thousands of firefighters have been making headway against existing blazes.

A warning for dangerous fire weather took effect in much of fire-scarred Northern California.