I just got off the phone with my Mom. They were able to return to their neighborhood today and the damage was far less than anyone anticipated. My sister's home lost a portion of the foundation and the main level flooring will all need to be replaced but she has already been able to line up trustworthy contractors who can repair the foundation and help with the flooring issues. Her renter had stayed for an additional day after she and her daughter evacuated and managed to move most of her valuables to the upper level of the home, so she lost very few of her possessions.
My Mom's home only ended up with a few inches of water on the main floor and her flooring appears to be salvageable. Most of her antiques look as though they will also be fixable. Although there will still be quite a bit of clean-up needed, she has received an offer of a place to stay until her home is inhabitable.
This is amazing because just last night the sheriff who talked to Mary on the perimeter of the flood zone told her that most of the homes in her area were going to have to be condemned and she was devastated. What a joyful thing it was to find out today that her home and Mom's were not nearly as damaged as others in that area and they could rebuild.I plan on spending some time doing happy dances and whooping at unpredictable intervals tonight. Woot, cha cha cha!