Welcome to the area! Your vehicles are WELL equipped. Most of our winter storms are a few to several inches and the roads are quickly cleared as the snow falls. The bigger storms that last all day and/or get to the 12+ inch accumulation can be a temporary problem, but they will keep plowing and try to keep up. We don't get many ice storms, but we've had those as well as the named blizzards like Snowmageddon, etc. that put down about 3 feet of snow. This area of WV is east of the higher Appalachian mountains and therefore there is less snow than about an hour to the west of the panhandle. Our temps are warmer, too. I've seen plenty of 10 degree drops driving west across I-68 thru western MD and towards Morgantown, WV.
One thing about the big storms and snow removal in this area is the concentration of the DOH efforts on the major highways first, like I-81, and to a lesser extent, Rt 340 thru Jefferson County where I live (one county east of where you will be). When we get these long lasting storms, they will plow the side roads once after a modest accumulation of snow, which helps, but then they go back to I-81 and keep plowing that until it is bone dry (lots of salt used). This allows the side roads to get packed down with the remaining snow until it becomes a couple inch thick layer of white ice, so your Blizzaks are a really good idea (I use them). They can't plow this ice and there is not enough salt to melt that thick layer of ice, so they put down abrasives like rock chips that help a little. Most of the winter driving issues after a storm are going to be on the smaller roads and housing areas until the crews can get to them, but once you make it to a major road, the roads are pretty good.
It depends on how far back onto these side roads you live that will affect how long you might be safer at home when one of these big storms hit. The more small roads you have to negotiate, the greater potential for later snow removal. After we had a huge storm in 1993 when I lived in Berkeley County and got stuck in a subdivision for 3 days, the area did purchase more snow removal equipment for these big 3 foot storms, like V-blade plows with front end loaders and dump trucks to move the snow. We've only had 3 such storms that I can remember since I've lived in this area since 1988, and the last one was in 2010.
Again, your Subaru with Blizzaks will be the superior vehicle on most of the roads around here.