A flood advisory is in effect for San Luis Obispo County. It will be in effect until 8 a.m. A flood watch will remain in effect until 6 o’clock this evening. residents are urged to prepare for flooding in low lying and flood prone areas. Significant rainfall is expected throughout the morning. Earlier this week, evacuation warnings were posted in Santa Barbara County for people living near the burn scars of the Lake Fire due to the possibility of mud and debris slides.