When the air is warm and dry, transpiration and evaporation also suck water out of the plants and soil. That leaves dry vegetation that can provide fuel for flying embers to spread wildfires, as the Los Angeles area saw in early January.

The Los Angles Police Department said "a male was heard stating a suspect was 'attempting to light a fire'" near the Kenneth Fire.

Firefighters are battling to control a series of major fires in the Los Angeles area that have killed five people, ravaged communities from the Pacific Coast to Pasadena and sent thousands of people f

Some fires burning across Los Angeles County have begun to be put out, but one of the biggest blazes is still burning uncontained.