Here is the latest AccuWeather track and wind intensity (by category) forecast for Matthew.
As feared, highly extensive -- past Columbia -- tree damage has occurred due to the wet ground which means extensive power failures. The power failures are so great -- North Carolina to Florida -- that some people may be without power for days, maybe two weeks.
There is also extensive storm surge and heavy rainfall flooding. Below is the additional rainfall from 7am to 7am CDT Tuesday.