The heaviest rains from the remnants of Florence will not arrive until Sunday afternoon, and be heaviest Sunday night into Monday morning. The regions that will see the most rain are south and west of Roanoke, especially along the Blue Ridge.
Typically 2-4 inches of rain can be expected area wide. 4-8 inches are possible in higher elevations. Flash flooding is very possible along with the potential for landslides and power outages.