Just spoke with my mother this morning and she has returned to her house on Sanford lake (they are on the West side about 1/2 mile north of US-10 bridge). Her house sits about 25-30 ft above the normal water level and estimates the water rose about 15 ft. No power currently at her house, but she said they have telephone poles in her back yard so not a surprise. Lots of debris in their yard including trash bins, oils drums, furniture, telephone poles and trees. The east side of the lake is lower lying where she is and from what they can tell there is major damage on that side.
Another major concern is the Dow Chemical plants that are downstream and still below a remaining dam. If debris and major flow/flooding reaches the plants there could be some catastrophic consequences. I grew up in Midland and have seen a few floods that covered a bit of downtown. Nothing remotely close to this.