Huge wildfires have been burning in the U.S. state of North-Eastern California on Monday, prompting local authorities to issue mandatory evacuations.

The Gold fire and the Hog fire are just two of several fires burning in the region.

Xinhua news agency has reported, Hog Fire, which was first reported Saturday afternoon, grew to 5,800 acres (23.5 square kilometers) with zero percent containment, according to the latest information from the California Department of Forestry and Fire Protection (Cal Fire) Monday morning.

The fire exploded to more than 6,000 acres and created its weather, generating lightning, thunder, rain, and fire whirls out of a huge pyrocumulonimbus.

A thunderstorm cell mixed with a pyrocumulus ash column from the Hog fire, bringing with it erratic winds and lightning before evolving into a hail storm that extinguished a portion of the fire.

Large smoke has been seen from the highway. Later, a CalFire aircraft drops fire retardant over the Hog fire, about 5 miles from Susanville, California.

The wildfire not only prompted evacuations but also injured two firefighters, destroy seven structures and 60 remained threatened, according to the fire officials in the state.