After scattered showers dampened much of Southern California overnight Friday and into Saturday, cool, dry weather is expected for the remainder of the weekend before another storm system moves in early this week.

About 11/2 inches of rain fell over the San Bernardino Mountains on Friday, National Weather Service meteorologist Brian Adams said, as residents continued to dig out from the snow dumped by February’s record-breaking storms.

San Bernardino County Fire Department spokesperson Eric Sherwin said that in anticipation of this week’s storm, the county’s Office of Emergency Services ordered sandbags, and extra fire resources would remain in place in the mountain communities.

Highway 38 reopened in both directions from Mentone to Big Bear late Friday, but Highway 18, between Highway 138 and Waterman Road, remained closed as Caltrans crews continued their work clearing rock-slide debris and snow from the road.

Below the mountains, other Inland Empire communities, including Ontario and Rancho Cucamonga, received around an inch of rain, Adams said.

“This was a pretty plain rain event that rolled through,” he said.

Coastline communities received about an inch of rain while a few inland areas received a little over 2 inches, including Porter Ranch in Los Angeles County.

A rock slide near the Morris Dam Reservoir led to the closure of Highway 39’s northbound lanes on Saturday, according to the Los Angeles County Department of Public Works. Crews were working to clear the debris from the road.

A second, slightly larger storm system is expected to arrive Tuesday afternoon, delivering 1 to 3 inches of rain over the coast and 3 to 5 inches over the mountains and valleys, Adams said. Winds of 25 to 35 mph are possible, with gusts of up to 60 mph in the mountains.

“This storm has the potential for moderate to heavy rain across the San Bernardino mountains,” Adams said.

“We’re expecting this system to be stronger than this past storm,” he said, referring to the rain Friday night into Saturday morning.

In Los Angeles, the eastern San Gabriel Mountains were expected to take the brunt of the storm, with 3 to 6 inches of rain, said NWS meteorologist Kristan Lund.

The storm will continue through Wednesday evening before moving on, with clear skies and cool temperatures expected on Thursday and Friday.