Fire 'zero percent contained' as of Sunday night; climate change, drought exacerbate blaze; more fires expected in coming months

Last decade saw several states experience severe water shortages, triggering periodic restrictions on usage and even forcing some communities to import bottled water for drinking

Only 21% contained, Dixie Fire destroys 447,723 acres in four counties, up from previous day's total of 434,813 acres burned and surpassing vast Bootleg Fire in southern Oregon

State's largest utility warned it may cut power for the third time in as many weeks as forecasts detail what could be the strongest winds of the year coupled with bone-dry humidity

Around 2 million people expected to be affected for up to several days after power company pulls the plug to stop wildfires