In less than a week, Southern California’s weather has gone from unseasonably dry and warm – to wet and now bitterly cold. The National Weather Service says the same low pressure system that brought rain to the region last weekend is “still spinning” and producing overnight low temperatures in the 30s

The most serious red flag fire weather warning has been issued by the NWS for swaths of L.A. and Ventura counties starting before dawn Tuesday.

Weather whiplash continues in Los Angeles County, where after weeks of dangerously warm and windy conditions, followed by sudden rainfall and small mudslides, the National Weather Service has issued a warning for a new threat — cold overnight temperatures that could pose a risk of hypothermia.

Southern California will continue to face "dangerous fire weather conditions" including strong Santa Ana winds and extremely low humidity through later this week, forecasters said Tuesday.