Forecasts say the chances of flash flooding are not high, but even so, city crews are reinforcing roads and telling residents to take warnings seriously.

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

AccuWeather's California Expert Ken Clark talks about the much-needed rain hitting California. Investors made a quick exit from a host of technology stocks from Tokyo to New York on Monday as the emergence of a low-cost Chinese artificial intelligence model challenged the dominance of current AI leaders such as Nvidia .

Rain and cooler temperatures will bring relief to Southern California this weekend, after a prolonged stretch of dry, breezy weather that allowed wildfires to thrive.