A powerful storm with an atmospheric river threatens to bring life-threatening flooding and debris flow from Los Angeles wildfires burn scars. The atmospheric river is forecast to unleash heavy downpours and wind on areas charred by last month’s fires,

Areas charred by last month's wildfires in Southern California now face a new threat from a powerful, but fast-moving Pacific storm. Here's what you need to know about this threat.

The weather phenomena are common for California winters, but they could cause dangerous debris flows or mudslides in recently burned areas.