A weak but lingering storm system was bringing off-and-on showers to San Diego County for a second day Thursday.
Heavier pockets of rain fell during the morning commute and late evening, and pop-up showers soaked the county throughout the day.
The National Weather Service issued a winter weather advisory for San Diego County mountains until 10 p.m. Friday, and put a wind advisory in place until 8 p.m.
During the wind advisory period, winds are expected to average 25 to 35 miles per hour with some gusts reaching 55 mph, creating difficult driving conditions through valleys and mountain passes.
NBC 7 Meteorologist Dagmar Midcap said snowfall was possible overnight Thursday and all day Friday at elevations as low as 4,000 feet and said 2 to 4 inches would fall above 5,000 feet.
Midcap said 40 to 50 mph wind gusts in the mountains could cause wind chill temperatures to drop into the 20s.
Light showers were expected to fall in coastal and inland areas through Friday morning, but Midcap said there could be a break around midday. That drying trend is expected to last until Saturday night when another wave of showers.
In total, the storm isn't expected to drop more than an inch of rain on San Diego County over the three-day period. Meteorologist Sheena Parveen said numbers may be much less in some areas.
Thursday began with a dumping of showers on communities like Imperial Beach, Eastlake, Jamul, Lakeside and Ramona as a band of rain moved across the county.
The ground across the county was soaked, and when combined with low visibility due to heavy morning fog, could have contributed to problems on roadways during the morning commute, according to NBC 7 traffic anchor Whitney Southwick.
Just before 6 a.m., three small crashes had been reported on freeways.
"Bottom Line is when we’re seeing these heavy pockets of rain, were seeing a lot of action pop up," Southwick said.