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

Mudflows prompted the closures of at least some roads, including in Topanga Canyon and on parts of the Pacific Coast Highway.

The NWS Los Angeles/Oxnard CA issued an updated flood watch at 9:21 a.m. on Sunday valid from 10 a.m. until Monday 4 p.m. The watch is for Santa Clarita Valley, Malibu Coast, Western Santa Monica Mountains Recreational area,

Pacific Coast Highway in the city of Santa Monica has been reopened for residents and businesses. The Santa Monica Police Department has also lifted all city street closures. They ask residents to remain vigilant in areas that were previously under evacuation warnings.

Forecasters in Southern California expect to issue a 'particularly dangerous situation' red flag warning for the coming week as the Santa Ana wind forecast worsens.

Southern California will continue to face "dangerous ... Santa Clarita Valley, western Santa Monica Mountains, Santa Susana Mountains and western San Gabriel Mountains are among the areas affected.

As winds across the Southern California area are calmer than their peak and firefighters are making progress, the threat to the fire-weary region remains with Santa Ana winds expected to continue in the coming days.

The Southern California wildfires have left entire neighborhoods in Pacific Palisades and Altadena reduced to ashes, but the rebuilding process is already being

After multiple days of heavy rains provided Southern California with significant relief from a spate of catastrophic wildfires, experts are now warning of potential mudslides as debris flows run

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More than an inch (2.5 centimeters) of rain fell in many areas, loosening Los Angeles hillsides burned bare by the recent blaze near the Pacific Palisades neighborhood, where crews cleared inundated roadways including the famed Pacific Coast Highway.