By Thursday morning, much of Southern California had already recorded some measurable rainfall, while a few inland areas were experiencing minor flooding that officials warned could get worse and spread. Much of the region remains under a flood watch through early Friday. "As the day wears on ... we could definitely start getting those heavier showers and thunderstorms developing," said Rich Thompson, a meteorologist with the National Weather Service in Oxnard. "Some areas will have a lot of rain."
Yosemite, Upper San Joaquin River, Kaiser to Rodgers Ridge and Kings Canyon NP are the focus of a flood watch issued at 9:19 a.m. on Sunday by the National Weather Service. The watch is in effect until 9 p.m. The NWS Hanford CA said, Flooding caused by excessive rainfall is possible. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations, the NWS said. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.