The most recent series of storms brought several inches of rain to Tuolumne and Calaveras counties over the weekend.
Another storm is expected to move into Northern California Tuesday and bring rain through Wednesday, the National Weather Service said.
Over the weekend, Sonora recorded 3.60 inches of rain and Angels Camp received 5.78 inches. The storms brought the season total for Sonora to 8.21 inches and 11.75 inches for Angels Camp.
This is already a wetter season compared with last year. As of Dec. 3, 2011, Sonora had received only 3.22 inches of rain and 4.02 inches in Angels Camp.
The average rainfall for all of December in Sonora is 5.15 inches.
There is a 10 percent chance of rain Tuesday morning, but as the day progresses precipitation will become more likely. The chance of rain is projected at 60 percent for Tuesday evening with showers likely Wednesday, the NWS said.
A flooding warning will remain in effect throughout much of Northern California, including in Tuolumne and Calaveras counties.
"Our officers were very busy going to mudslides, collisions and spin outs," said Officer Michael Joslin, spokesman for California Highway Patrol office in San Andreas. "We had a lot of stuff going on this weekend."
Temperatures throughout the Mother Lode will remain mild. Highs in Sonora will stay in the low to mid-60s with lows in the low to mid-40s. Angels Camp temperatures are expected to be slightly cooler with highs in the upper 50s to low 60s and lows in the lower 40s.
The snow level will remain above 9,000 feet, which means Dodge Ridge and Bear Valley ski areas will likely receive rain instead of snow.
Sonora, Ebbetts and Tioga passes are all closed.
Caltrans advised motorists to prepare for the storm season, have their vehicles winterized and to check road conditions before driving.
For road conditions, call 800-427-7623 or visit www.dot.ca.gov.