(FOX 11) - The National Weather Service has issued a flash flood watch for the Antelope Valley, San Gabriel and Ventura County mountains from noon Sunday through this evening.
Flash Flood Watch is in effect this afternoon and evening for the mountains, Antelope and Cuyama Valleys!! Heavy downpours and roadway closure due to flash flooding are possible!! If you encounter flooded roadways, TURN AROUND DON'T DROWN! #SoCal #CAwx #LAweather pic.twitter.com/Gsukyr19Qr— NWS Los Angeles (@NWSLosAngeles) June 2, 2019
There is also a good chance of showers and thunderstorms Sunday afternoon and evening.
At 1110 am, storms beginning to develop across the mountains of northern Ventura county near Lockwood Valley. Slow moving thunderstorms could bring heavy downpours with flash flooding in the mountains today. Flash Flood Watch in effect. #LArain #LAWeather #cawx pic.twitter.com/PugKrUHyGM— NWS Los Angeles (@NWSLosAngeles) June 2, 2019
Rainfall rates over one inch per hour are possible. Slow moving thunderstorms could cause heavy rain to linger in a particular location, increasing the risk of flash flooding.
This will be especially likely in the higher terrain and in the back country. Highway 33 and Lockwood Valley Road will be at risk for potential flooding later today if thunderstorms develop. Normally dry creeks can flood rapidly.
A flash flood watch means that conditions may develop that lead to flash flooding.
The flash flood watch remains in effect until 9 p.m. Sunday.
AP contributed to this report.