The Rocky fire in northern California showed explosive growth over a few days, due to very dry vegetation in the Mayacamas Range, 2 August 2015. Graphic: Mayacamas VFD

By Jessica Marmor Shaw
2 August 2015 (MarketWatch) – A wildfire that has been raging in northern California since last Wednesday jumped 20,000 acres overnight, and has now charred 47,000 acres and is threatening 6,300 homes. Fire officials say the massive blaze, called the Rocky Fire, in the Lower Lake area north of San Francisco is only 5% contained. Already it has destroyed 24 homes and 26 outbuildings. Cal Fire says an evacuation advisory has been issued affecting 12,000 people and several roads have been closed. The fire is the biggest of the many burning in the forests and woodlands of Northern California. [more]

Massive California fire jumped 20,000 acres overnight