Thousands of people have been told to evacuate areas of Los Angeles Friday as California's most powerful winter storm so far this season threatens to flash flood land scarred by massive wildfires.

A flash flood warning was issued Thursday afternoon for the Palisades and Franklin fires burn scars in Los Angeles County as the most powerful wave of a winter storm moved into the region. The warning,

Another major storm system threatening the West Coast with rain, mudslides and flooding is triggering new evacuation warnings in areas of California impacted by last month's wildfires. CBS News national weather correspondent Rob Marciano has more.