I am pretty close to the main damage path. Luckily we were spared more than a minor disruption just by chance. There are staunch preppers in the damage area that were not even close to ready. Buildings that are no where close to a flood zones got wiped out. Asheville, NC was cut off by road completely even though I-40, I-26, and I-240 pass right thtough it. I understand at least some smaller roads are clear now.
The lesson here is to expect the unexpected. Also, to head evacuation warnings. There is no way you can bug in with 20 foot of water in your house. have multiple layers of planning. Bug in, bug out, bug out expecting to come back to nothing, etc.
Just to understand the sheer power of this, look at this pic. That white building is a hotel and next to it is a full size gas station. Freak of layout that saved them but the volume of debris shows how much force was being exerted.
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For perspective, here is a Google maps of that same area. Where it says Amigos is that same gas station and hotel. Notice it is no where close to 'river-side"
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An industrial manufacturer close to this pic lost 5 of 10 employees because this moved so quick that they could not evacuate the site quick enough. Their truck got flipped and the group seperated. The 5 only were saved because they ended up close to an elevated train track that stayed above water. One poor lady I know had an aunt in the lost 5. She called to say she was on stuck on top of a truck and that is the last they heard from her.
Some people are being told weeks to get power back on. It will be years before some bridges are rebuilt. For some cut off from ways out, it will be a long haul unless they just leave. Living off a generator for an extended peroid is a hard thing to do for most people.