The Canyon Fire, north of Los Angeles, has grown rapidly to nearly 5,000 acres in size, with thousands of people ordered to evacuate.

A dozen major wildfires are burning across California, and officials warn the threat will only grow in August and September, typically the most dangerous months for wildfires.

Fire officials say the blaze is threatening power lines as well as the communities of Hasley Canyon and Hathaway Ranch.

The Canyon fire is threatening areas around Piru and Castaic near the Los Angeles-Ventura county line. Here's what you need ...