Mike Johnston
EF5
Well, this system may end up being a legitimate 3-day threat. Usually, by the time these surging upper-level lows reach the east coast, they're very positively-tilted and there is just not enough instability to set up severe weather. In this case, though, it looks like the system is taking on an overall negative tilt. This, along with onshore flow from the Atlantic, looks to be setting up some instability along the coastal Carolinas this afternoon. The wind fields are pretty decent also. Perhaps the opportunity for a local chase today. We're currently 72t/67td here in Charleston, SC with southeast surface winds. I see that the axis of instability could extend as far north as Fredericksburg, VA later today.