It seems that Atlanta, Nashville and Asheville are the hardest hit with shortages. A lot of it is people panic buying, and in some cases trying to hoard it by filling their tank plus a few other containers. The Spartanburg terminals should be getting gas on Thursday. They supply Asheville and the surrounding mountains. Atlanta and Nashville should be good to go by Thursday, as well, but we should expect higher prices ($5.00) and spot shortages for another 10 days.
The problem isn't just that there were 15 refineries shut down, which has lowered the supply chain inventories substantially, but that the Colonial Pipeline that runs from Houston to the northeast has also been shut down. Until that thing opens back up, which should be within a few days, and the other refineries get back up to speed to fill the pipeline, we'll see spot shortages here and there for a week or 10 days.
A manager at the Pilot here in beautiful downtown Mobile, AL (well, the one on I-10 just west of town) said that as of Monday morning there were still eight refineries down in Louisianna and Texas due to no electrical power, but that most or all should be back up and running within a week. Where there is a gasoline shortage, look for higher prices. There is no shortage of diesel, because there isn't as much of a demand, even though a few months ago the demand was, apparently, obscene.
Closer in to town diesel is $4.49 a gallon at the gas stations, but here at the Pilot it's $3.87 and I think it's about the same at the TA a few miles west of here.