After a brief break overnight, the rain started falling across San Luis Obispo County again Monday morning.
Showers are expected to continue through Tuesday morning, according to John Lindsey, meteorologist at Diablo Canyon nuclear power plant.
Rainfall amounts with the system are expected to range between a half-inch and 1 inch in the North County, .9 and 1.7 inches in the coastal valleys and 1.5 to 3 inches in the coastal mountains.
The ground is already saturated, which means the additional rain could lead to flooding.
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Another system is expected to cross the Central Coast on Tuesday afternoon through Wednesday morning, bringing heavy rain to lower elevations and snow to areas above 3,000 to 4,000 feet, Lindsey said. Winds should reach 25 to 38 mph with the system.
Rain totals could be slightly above the Monday-Tuesday storm, Lindsey said.
Dry and cool conditions are forecast for Thursday and Friday, Lindsey said, with another storm expected to move across the Central Coast on Christmas weekend.