I'm from North Carolina, she has a hint of Southernism in some words, but it's more just a slow, lazy way of speaking - like many teenagers do.
So... Floridian?
Also, isn't NC supposed to have the most variances in a southern dialect?
The first video to me sounds Appalachian. The Second was a more typical bible belt accent.
I am a Texan by way of Oklahoma. My father was from Tulsa(Claremore, really), my Grandmother was from South Carolina(a Cherokee native). I also lived a while near the Sierra Nevada's in California, Oregon, and Washington State, as well as a winter in Missouri. I have friends from nearly every state, and have worked as a field engineer in the south and east coast for years. I am told when I am excited or inebriated that the southern really does come out of me, both in accent and demeanor. I currently live in Ireland.
I do not really consider myself southern. I would just say I am Texan.
What I hear in Chrissy's accent is a bit of southern. She does not have any of that west coat or east coast coloration at all, and definitely nothing northern.
Now, I have heard people speak like her all over in places I have lived. Some of the absolutely most hick accents I have heard were from the country in California.
If I ran into her accent back when I was living in Austin, TX, I wouldn't think a thing about it. Unless, of course, it was Chris Evert I ran into
I once telephoned the wrong number in Arkansas, and what came out of the other end of the receiver sounded vaguely English.
One of my best ex-work mates is an Arkansan. He I could understand, though.
What I do find difficult to understand are the local Travelers. Think of the movie 'Snatch'.
Though I learned to speak from my father, who had a rather thick Oklahoman accent(my mother was from Osaka, Japan), I have spent a LOT of time in the service industries as an engineer who has had to communicate clearly over the phone often and I do not consider myself to have a thick accent, but the locals often call me John Wayne. I have a video on here, though I am quiet in it because I did not want to wake up the MIL, and I am trying to speak clearly and flat, you can tell I am definitely not a New Yorker.