Isolated light showers could occasionally pop up tomorrow (30%), though it looks like most of the day will be dry. A better chance for rain arrives Monday as the core of the system settles into the region (80%).
The rain chance persists Tuesday and Wednesday (80%) as more moisture gets wrapped up into the storm. Computer forecasts have been a little inconsistent about the track of the storm during this time period. This track is key to the forecast because it affects our overall rain potential. The atmosphere will be unstable, so isolated downpours will be embedded within the showers. Some hail will also be possible.
Showers will become more isolated heading into Thursday as the system exits the region (60%).
Snow levels will be around 9,000-10,000 feet Sunday, 5,500-6,500 feet Monday, 4,500-5,500 feet Tuesday and Wednesday, then back up to near 5,500-6,500 feet on Thursday.
I've included projected 5-day rain and snow totals below. It shows that most areas in San Diego County should receive 1-2" of total rain with isolated areas in the mountains getting more.
