Forecasters warned Monday that a powerful storm system is approaching San Diego County that could trigger flooding and debris flows, particularly in recent burn areas.

The storm is expected to bring about 2 inches of rain to northern and southern parts of the county between Wednesday and Friday

There is up to a 15% chance of light precipitation on Tuesday as the marine layer deepens from coastal to foothill areas throughout the county, with the heavier rain arriving later in the week, forecasters said.