SACRAMENTO – (INT) –17 active wildfires continue to burn in California, with 12,000 firefighters on the frontlines.

Two new large wildfires ignited on Thursday; the Horno Fire in San Diego County and the Mark Fire in Calaveras County.

Another fire erupted Friday afternoon in the hills north of Glendora, in the Angeles National Forest. The Cabin Fire had grown 100 acres and destroyed at least one structure.

This weekend temperatures are on the rise, which could elevate the fire risk in many areas. The National Weather Service has issued a “Red Flag Warning” along the Northern Sierra from Truckee in Nevada County up through Modoc County.

The warning is due to strong winds, with gusts up to 40mph, and low humidity. This combination, along with the tinder dry conditions, will elevate the fire danger even higher.

With the weekend approaching CAL FIRE is again urging the public to careful with outdoor activities. Whether its camping, barbequing, or off-road driving, conditions are ripe for a simple spark to ignite a wildfire.

Story Date: August 15, 2015