What causes forest fires?
There also needs to drought conditions to the point that forest becomes ‘tinder’ as is easily ignited by and fuel for a raging fire. It could also be as simple as a glass bottle or a peice of reflective material in a coutry like australia summer and phhhummm…up it goes like a house on fire. High winds also spread fires more quickly making it harder for firefighters to get them under control once they start.