A low pressure system from the north will bring colder temperatures and rain chances to southern CA as early as Saturday afternoon, lasting possibly into Monday night. Expecting most areas to see at least a little rain, with the highest rain totals favoring Los Angeles County and the eastern San Gabriel mountains. There is also a risk of thunderstorms (10-20% chance), capable of producing small hail and isolated brief heavy downpours with rainfall rates up to 0.50 in/hr. There is a low chance for debris flows for recent burn scars, with this thunderstorm risk.