The system will drop 6 to 12 inches of snow in the mountains above 5,000 feet and create icy conditions on Interstate 8

Even with heavy rain coming down this week, San Diego County remains in a drought, highlighting how much more is needed to replenish the region’s water resources.

"This system is expected to be quite cold aloft which increases the chances of thunderstorms across the area, leading to an increased threat of flooding."