A storm system arriving on Monday will wash away the Sacramento area’s sunny weekend weather, according to the National Weather Service.
Thunderstorms with heavy rain will develop between 3 and 9 p.m., and the NWS has issued a flash flood watch for much of Shasta County and parts of Tehama County. Rainfall could reach up to an inch per hour in the northern Sacramento Valley, according to NWS meteorologist Karleisa Rogacheski.
Closer to Sacramento, thunderstorms are expected Monday night with precipitation of less 1 inch. Winds here could increase to 15 to 20 mph.
Urban flooding and standing water in low-lying areas may block some roadways, mostly to the north of the region, Rogacheski said.
“Those that are traveling through any burn areas should be aware, there’s a possibility of rock slides and debris,” Rogacheski said. The area near the Carr, Delta and Hirz burn scars will likely be impacted by the storm.
The storm system will cause mountain travel delays beginning Monday evening, and will likely affect the morning commute throughout the region Tuesday as well, according to the NWS. Between 2 and 6 inches of snow is also expected in the mountains.
“If you do come across a flooded area, just turn around,” Rogacheski said. “It only takes a couple inches of water to move a car and you don’t know what’s below the water line.”