Much-needed rain has begun to fall over Southern California, bringing relief to the drought-stricken region but also the threat of toxic runoff.

The rain that is expected to hit the scorched Los Angeles landscape this weekend may bring relief to the fire fights, but it could also bring flash floods and mudslides. Although forecasts show that the risk is relatively low, local officials are taking the warnings seriously.

Southern California is expecting up to an inch of rain in some parts, aiding the fight against wildfires but also causing landslides that threaten homes in Los Angeles area. NBC News' Steve Patterson reports on the anxieties residents face as they try to resettle.