SONOMA, Calif. (AP) - Firefighters gained some ground on a blaze burning in the heart of California's wine country but face another tough day ahead with low humidity and high winds expected to return.
 
California Department of Forestry and Fire Protection spokesman Scott McLean says a blaze burning in Sonoma and Napa counties is 22 percent contained Friday.
 
Thousands of firefighters are battling 21 wildfires spanning more than 300 square miles (777 square kilometers) and more crews are pouring in to help.
 
McLean tells Oakland television station KTVU that the blazes grew little overnight thanks to favorable weather but warns gusty winds and higher temperatures are forecast Friday.
 
Since igniting Sunday in spots across eight counties, the blazes have killed 31 people and destroyed at least 3,500 homes and businesses.