Back-to-back storms are expected to bring San Diego County rain clouds, gray skies and precipitation for much of the week. Round one of this week unsettled weather delivered a healthy dose of rain. Rain totals for Tuesday are approaching an inch in some places,

A second, larger system will arrive Wednesday night and last well into Thursday, delivering 0.25 inches or more inches of precipitation at the coast and an inch in the eastern half of the county. Palomar Mountain and Mount Laguna are likely to have snow by dawn Thursday.

The rain will continue off and on through Saturday in most parts of the county with a brief respite Wednesday, the San Diego office of the National Weather Service said.