Heavy rainfall moved through Southern California early Saturday morning as part of a wet day in the region, bringing potentially dangerous conditions as flood warnings go into effect. Between one and three inches of rain was expected for low-elevation Southern California communities between Saturday and Sunday, according to the National Weather Service. Thunderstorms are a possibility for Saturday, bringing along a flash flood warning in Los Angeles County. The heavy rain over a small period could bring urban flooding as drainage systems may not be able to keep up with the flow. KTLA's Kaj Goldberg, Rachel Menitoff and John Fenoglio report on March 30, 2024. Details: https://ktla.com/weather/heavy-rain-moves-through-southern-california-dangerous-conditions-possible/ KTLA 5 News - Keeping Southern Californians informed since 1947.