An evacuation center is available at Laguna Town Hall in west Elk Grove.
Emergency services says this is a dynamic situation that could change at any minute.
They warn to be prepared with clothes, comfort items, medications, prescription glasses and specialty items for children and seniors.
The Notification Area Boundary is Lambert Road to the north. Franklin Boulevard to the east. Lost Slough to the south and the west boundary is Snodgrass Slough.